diff --git a/CHANGELOG.md b/CHANGELOG.md
index b33539c..47bc86a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# `0.11.0`
+
+- Add option to refund unused deposit for `set` method. [#11](https://github.com/NearSocial/social-db/pull/11)
+
 # `0.10.1`
 
 - Refunds deposit on calling `set` if it hasn't been added to an account.
diff --git a/Cargo.lock b/Cargo.lock
index e1ec120..0e4b326 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -73,6 +73,46 @@ version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
 
+[[package]]
+name = "async-channel"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf46fee83e5ccffc220104713af3292ff9bc7c64c7de289f66dae8e38d826833"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-io"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fc5b45d93ef0529756f812ca52e44c221b35341892d3dcc34132ac02f3dd2af"
+dependencies = [
+ "async-lock",
+ "autocfg",
+ "cfg-if 1.0.0",
+ "concurrent-queue",
+ "futures-lite",
+ "log",
+ "parking",
+ "polling",
+ "rustix",
+ "slab",
+ "socket2",
+ "waker-fn",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa24f727524730b077666307f2734b4a1a1c57acb79193127dcc8914d5242dd7"
+dependencies = [
+ "event-listener",
+]
+
 [[package]]
 name = "async-mutex"
 version = "1.4.0"
@@ -82,6 +122,30 @@ dependencies = [
  "event-listener",
 ]
 
+[[package]]
+name = "async-process"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a9d28b1d97e08915212e2e45310d47854eafa69600756fc735fb788f75199c9"
+dependencies = [
+ "async-io",
+ "async-lock",
+ "autocfg",
+ "blocking",
+ "cfg-if 1.0.0",
+ "event-listener",
+ "futures-lite",
+ "rustix",
+ "signal-hook",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "async-task"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecc7ab41815b3c653ccd2978ec3255c81349336702dfdf62ee6f7069b12a3aae"
+
 [[package]]
 name = "async-trait"
 version = "0.1.56"
@@ -90,9 +154,15 @@ checksum = "96cf8829f67d2eab0b2dfa42c5d0ef737e0724e4a82b01b3e292456202b19716"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1181e1e0d1fce796a03db1ae795d67167da795f9cf4a39c37589e85ef57f26d3"
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -109,7 +179,7 @@ dependencies = [
  "cc",
  "cfg-if 1.0.0",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.5.3",
  "object 0.28.4",
  "rustc-demangle",
 ]
@@ -126,6 +196,29 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
+[[package]]
+name = "base64"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
+
+[[package]]
+name = "binary-install"
+version = "0.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5bc5f8c50dd6a80d0b303ddab79f42ddcb52fd43d68107ecf622c551fd4cd4"
+dependencies = [
+ "curl",
+ "dirs 1.0.5",
+ "failure",
+ "flate2",
+ "hex 0.3.2",
+ "is_executable",
+ "siphasher",
+ "tar",
+ "zip",
+]
+
 [[package]]
 name = "bincode"
 version = "1.3.3"
@@ -183,6 +276,17 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "blake2b_simd"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
+dependencies = [
+ "arrayref",
+ "arrayvec 0.5.2",
+ "constant_time_eq",
+]
+
 [[package]]
 name = "blake3"
 version = "0.3.8"
@@ -208,12 +312,36 @@ dependencies = [
  "generic-array 0.14.5",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array 0.14.5",
+]
+
 [[package]]
 name = "block-padding"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d696c370c750c948ada61c69a0ee2cbbb9c50b1019ddb86d9317157a99c2cae"
 
+[[package]]
+name = "blocking"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77231a1c8f801696fc0123ec6150ce92cffb8e164a02afb9c8ddee0e9b65ad65"
+dependencies = [
+ "async-channel",
+ "async-lock",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+ "log",
+]
+
 [[package]]
 name = "borsh"
 version = "0.8.2"
@@ -244,7 +372,7 @@ dependencies = [
  "borsh-schema-derive-internal 0.8.2",
  "proc-macro-crate 0.1.5",
  "proc-macro2",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -257,7 +385,7 @@ dependencies = [
  "borsh-schema-derive-internal 0.9.3",
  "proc-macro-crate 0.1.5",
  "proc-macro2",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -268,7 +396,7 @@ checksum = "d2104c73179359431cc98e016998f2f23bc7a05bc53e79741bcba705f30047bc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -279,7 +407,7 @@ checksum = "5449c28a7b352f2d1e592a8a28bf139bc71afb0764a14f3c02500935d8c44065"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -290,7 +418,7 @@ checksum = "ae29eb8418fcd46f723f8691a2ac06857d31179d33d2f2d91eb13967de97c728"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -301,7 +429,7 @@ checksum = "cdbd5696d8bfa21d53d9fe39a714a18538bad11492a42d066dbbc395fb1951c0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -310,6 +438,12 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "771fe0050b883fcc3ea2359b1a96bcfbc090b7116eae7c3c512c7a083fdf23d3"
 
+[[package]]
+name = "bumpalo"
+version = "3.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
+
 [[package]]
 name = "byte-slice-cast"
 version = "1.2.1"
@@ -334,6 +468,27 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c58ec36aac5066d5ca17df51b3e70279f5670a72102f5752cb7e7c856adfc70"
 
+[[package]]
+name = "bzip2"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdb116a6ef3f6c3698828873ad02c3014b3c85cadb88496095628e3ef1e347f8"
+dependencies = [
+ "bzip2-sys",
+ "libc",
+]
+
+[[package]]
+name = "bzip2-sys"
+version = "0.1.11+1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "736a955f3fa7875102d57c82b8cac37ec45224a07fd32d58f9f7a186b6cd4cdc"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "c2-chacha"
 version = "0.3.3"
@@ -368,7 +523,7 @@ dependencies = [
  "cached_proc_macro_types",
  "darling",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -450,6 +605,15 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "concurrent-queue"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62ec6771ecfa0762d24683ee5a32ad78487a3d3afdc0fb8cae19d2c5deb50b7c"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.5"
@@ -471,6 +635,22 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.2"
@@ -683,12 +863,11 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.10"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d82ee10ce34d7bc12c2122495e7593a9c41347ecdd64185af4ecf72cb1a7f83"
+checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
 dependencies = [
  "cfg-if 1.0.0",
- "once_cell",
 ]
 
 [[package]]
@@ -697,6 +876,16 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array 0.14.5",
+ "typenum",
+]
+
 [[package]]
 name = "crypto-mac"
 version = "0.8.0"
@@ -707,6 +896,36 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "curl"
+version = "0.4.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "509bd11746c7ac09ebd19f0b17782eae80aadee26237658a6b4808afb5c11a22"
+dependencies = [
+ "curl-sys",
+ "libc",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "socket2",
+ "winapi",
+]
+
+[[package]]
+name = "curl-sys"
+version = "0.4.63+curl-8.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aeb0fef7046022a1e2ad67a004978f0e3cacb9e3123dc62ce768f92197b771dc"
+dependencies = [
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+ "winapi",
+]
+
 [[package]]
 name = "curve25519-dalek"
 version = "3.2.1"
@@ -741,7 +960,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -752,7 +971,7 @@ checksum = "9c972679f83bdf9c42bd905396b6c3588a843a17f0f16dfcfa3e2c5d57441835"
 dependencies = [
  "darling_core",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -765,7 +984,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version 0.4.0",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -786,6 +1005,47 @@ dependencies = [
  "generic-array 0.14.5",
 ]
 
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer 0.10.4",
+ "crypto-common",
+]
+
+[[package]]
+name = "dirs"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd78930633bd1c6e35c4b42b1df7b0cbc6bc191146e512bb3bedf243fcc3901"
+dependencies = [
+ "libc",
+ "redox_users 0.3.5",
+ "winapi",
+]
+
+[[package]]
+name = "dirs"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30baa043103c9d0c2a57cf537cc2f35623889dc0d405e6c3cccfadbc81c71309"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b1d1d91c932ef41c0f2663aa8b0ca0342d444d842c06914aa0a7e352d0bada6"
+dependencies = [
+ "libc",
+ "redox_users 0.4.3",
+ "winapi",
+]
+
 [[package]]
 name = "dynasm"
 version = "1.2.3"
@@ -798,7 +1058,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -837,7 +1097,7 @@ dependencies = [
  "ed25519",
  "rand 0.7.3",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "zeroize",
 ]
 
@@ -856,6 +1116,15 @@ dependencies = [
  "heapsize",
 ]
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071a31f4ee85403370b58aca746f01041ede6f0da2730960ad001edc2b71b394"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
 [[package]]
 name = "enumset"
 version = "1.0.11"
@@ -874,9 +1143,15 @@ dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
+[[package]]
+name = "equivalent"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88bffebc5d80432c9b140ee17875ff173a8ab62faad5b257da912bd2f6c1c0a1"
+
 [[package]]
 name = "errno"
 version = "0.2.8"
@@ -888,6 +1163,17 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "errno"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "errno-dragonfly"
 version = "0.1.2"
@@ -931,6 +1217,28 @@ version = "2.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77f3309417938f28bf8228fcff79a4a37103981e3e186d2ccd19c74b38f4eb71"
 
+[[package]]
+name = "failure"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
+dependencies = [
+ "backtrace",
+ "failure_derive",
+]
+
+[[package]]
+name = "failure_derive"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.98",
+ "synstructure",
+]
+
 [[package]]
 name = "fallible-iterator"
 version = "0.2.0"
@@ -946,6 +1254,18 @@ dependencies = [
  "instant",
 ]
 
+[[package]]
+name = "filetime"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cbc844cecaee9d4443931972e1289c8ff485cb4cc2767cb03ca139ed6885153"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "redox_syscall 0.2.13",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "fixed-hash"
 version = "0.7.0"
@@ -958,12 +1278,37 @@ dependencies = [
  "static_assertions",
 ]
 
+[[package]]
+name = "flate2"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide 0.7.1",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.0.1"
@@ -974,6 +1319,16 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "fs2"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9564fc758e15025b46aa6643b1b77d047d1a56a1aea6e01002ac0c7026876213"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "fs_extra"
 version = "1.2.0"
@@ -1034,6 +1389,21 @@ version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
 
+[[package]]
+name = "futures-lite"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49a9d51ce47660b1e808d3c990b4709f2f415d928835a17dfd16991515c46bce"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
+
 [[package]]
 name = "futures-macro"
 version = "0.3.21"
@@ -1042,7 +1412,7 @@ checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1123,7 +1493,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bcc8e0c9bce37868955864dbecd2b1ab2bdf967e6f28066d65aaac620444b65c"
 dependencies = [
  "fallible-iterator",
- "indexmap",
+ "indexmap 1.9.1",
  "stable_deref_trait",
 ]
 
@@ -1134,7 +1504,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aaf91faf136cb47367fa430cd46e37a788775e7fa104f8b4bcb3861dc389b724"
 dependencies = [
  "fallible-iterator",
- "indexmap",
+ "indexmap 1.9.1",
  "stable_deref_trait",
 ]
 
@@ -1150,6 +1520,25 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
+[[package]]
+name = "h2"
+version = "0.3.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97ec8491ebaf99c8eaa73058b045fe58073cd6be7f596ac993ced0b0a0c01049"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "http",
+ "indexmap 1.9.1",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.9.1"
@@ -1174,6 +1563,12 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
 
+[[package]]
+name = "hashbrown"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c6201b9ff9fd90a5a3bac2e56a830d0caa509576f0e503818ee82c181b3437a"
+
 [[package]]
 name = "heapsize"
 version = "0.4.2"
@@ -1192,6 +1587,12 @@ dependencies = [
  "unicode-segmentation",
 ]
 
+[[package]]
+name = "heck"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+
 [[package]]
 name = "hermit-abi"
 version = "0.1.19"
@@ -1202,19 +1603,111 @@ dependencies = [
 ]
 
 [[package]]
-name = "hex"
-version = "0.4.3"
+name = "hermit-abi"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
 
 [[package]]
-name = "ident_case"
-version = "1.0.1"
+name = "hex"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
 
 [[package]]
-name = "idna"
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
+[[package]]
+name = "home"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5444c27eef6923071f7ebcc33e3444508466a76f7a2b93da00ed6e19f30c1ddb"
+dependencies = [
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "http"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd6effc99afb63425aff9b05836f029929e345a6148a14b7ecd5ab67af944482"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "http-body"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
+dependencies = [
+ "bytes",
+ "http",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+
+[[package]]
+name = "httpdate"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
+
+[[package]]
+name = "hyper"
+version = "0.14.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffb1cfd654a8219eaef89881fdb3bb3b1cdc5fa75ded05d6933b2b382e395468"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "httpdate",
+ "itoa",
+ "pin-project-lite",
+ "socket2",
+ "tokio",
+ "tower-service",
+ "tracing",
+ "want",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
+dependencies = [
+ "bytes",
+ "hyper",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+]
+
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
+[[package]]
+name = "idna"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "418a0a6fab821475f634efe3ccc45c013f742efe03d853e8d3355d5cb850ecf8"
@@ -1259,7 +1752,7 @@ checksum = "11d7a9f6330b71fea57921c9b61c47ee6e84f72d394754eff6163ae67e7395eb"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1273,6 +1766,16 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "indexmap"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5477fe2230a79769d8dc68e0eabf5437907c0457a5614a9e8dddb67f65eb65d"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.0",
+]
+
 [[package]]
 name = "instant"
 version = "0.1.12"
@@ -1282,11 +1785,48 @@ dependencies = [
  "cfg-if 1.0.0",
 ]
 
+[[package]]
+name = "integration-tests"
+version = "1.0.0"
+dependencies = [
+ "anyhow",
+ "near-units",
+ "serde_json",
+ "tokio",
+ "workspaces",
+]
+
+[[package]]
+name = "io-lifetimes"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
+dependencies = [
+ "hermit-abi 0.3.1",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "ipnet"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28b29a3cd74f0f4598934efe3aeba42bae0eb4680554128851ebbecb02af14e6"
+
+[[package]]
+name = "is_executable"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "302d553b8abc8187beb7d663e34c065ac4570b273bc9511a50e940e99409c577"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "itoa"
-version = "1.0.2"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "112c678d4050afce233f4f2852bb2eb519230b3cf12f33585275537d7e41578d"
+checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
 
 [[package]]
 name = "jemalloc-sys"
@@ -1318,6 +1858,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "js-sys"
+version = "0.3.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3fac17f7123a73ca62df411b1bf727ccc805daa070338fda671c86dac1bdc27"
+dependencies = [
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "keccak"
 version = "0.1.2"
@@ -1332,7 +1881,7 @@ checksum = "e559d5071cbb9743796593a892d96a7cc411d90aad711f57cc7dcbbf3893c10c"
 dependencies = [
  "lazy_static",
  "manifest-dir-macros",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1355,9 +1904,9 @@ checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
 
 [[package]]
 name = "libc"
-version = "0.2.126"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "libloading"
@@ -1391,6 +1940,24 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "libz-sys"
+version = "1.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56ee889ecc9568871456d42f603d6a0ce59ff328d291063a45cbdf0036baf6db"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
+
 [[package]]
 name = "lock_api"
 version = "0.3.4"
@@ -1437,7 +2004,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1504,6 +2071,12 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8452105ba047068f40ff7093dd1d9da90898e63dd61736462e9cdda6a90ad3c3"
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -1519,12 +2092,50 @@ dependencies = [
  "adler",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+dependencies = [
+ "adler",
+]
+
+[[package]]
+name = "mio"
+version = "0.8.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "927a765cd3fc26206e66b296465fa9d3e5ab003e651c1b3c060e7956d96b19d2"
+dependencies = [
+ "libc",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "more-asserts"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7843ec2de400bcbc6a6328c958dc38e5359da6e93e72e37bc5246bf1ae776389"
 
+[[package]]
+name = "native-tls"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07226173c32f2926027b63cce4bcd8076c3552846cbe7925f3aaffeac0a3b92e"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "near-account-id"
 version = "0.10.0"
@@ -1535,6 +2146,35 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "near-account-id"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d924011380de759c3dc6fdbcda37a19a5c061f56dab69d28a34ecee765e23e4"
+dependencies = [
+ "borsh 0.9.3",
+ "serde",
+]
+
+[[package]]
+name = "near-chain-configs"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1faf676a95bd1718b06e5957e01a9415fedf7900f32d94d5bcf70abd678b10a2"
+dependencies = [
+ "anyhow",
+ "chrono",
+ "derive_more",
+ "near-crypto 0.15.0",
+ "near-primitives 0.15.0",
+ "num-rational",
+ "serde",
+ "serde_json",
+ "sha2 0.10.7",
+ "smart-default",
+ "tracing",
+]
+
 [[package]]
 name = "near-contract-standards"
 version = "4.0.0-pre.7"
@@ -1587,7 +2227,7 @@ dependencies = [
  "ed25519-dalek",
  "lazy_static",
  "libc",
- "near-account-id",
+ "near-account-id 0.10.0",
  "parity-secp256k1",
  "primitive-types 0.10.1",
  "rand 0.7.3",
@@ -1598,6 +2238,66 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "near-crypto"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7754612b47737d277fb818e9fdbb1406e90f9e57151c55c3584d714421976cb6"
+dependencies = [
+ "arrayref",
+ "blake2",
+ "borsh 0.9.3",
+ "bs58",
+ "c2-chacha",
+ "curve25519-dalek",
+ "derive_more",
+ "ed25519-dalek",
+ "near-account-id 0.15.0",
+ "once_cell",
+ "primitive-types 0.10.1",
+ "rand 0.7.3",
+ "secp256k1",
+ "serde",
+ "serde_json",
+ "subtle",
+ "thiserror",
+]
+
+[[package]]
+name = "near-jsonrpc-client"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1335ffce1476da6516dcd22b26cece1a495fc725c0e8fec1879073752ac068d"
+dependencies = [
+ "borsh 0.9.3",
+ "lazy_static",
+ "log",
+ "near-chain-configs",
+ "near-crypto 0.15.0",
+ "near-jsonrpc-primitives",
+ "near-primitives 0.15.0",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "uuid",
+]
+
+[[package]]
+name = "near-jsonrpc-primitives"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ada226c74f05508c516f109a97b9f23335120d0bfda208f0d187b6bbfe6eef5a"
+dependencies = [
+ "near-chain-configs",
+ "near-crypto 0.15.0",
+ "near-primitives 0.15.0",
+ "near-rpc-error-macro 0.15.0",
+ "serde",
+ "serde_json",
+ "thiserror",
+]
+
 [[package]]
 name = "near-metrics"
 version = "0.1.0"
@@ -1634,7 +2334,7 @@ dependencies = [
  "chrono",
  "derive_more",
  "easy-ext",
- "hex",
+ "hex 0.4.3",
  "jemallocator",
  "lazy_static",
  "near-crypto 0.1.0",
@@ -1648,7 +2348,7 @@ dependencies = [
  "regex",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.9.9",
  "smart-default",
  "validator",
 ]
@@ -1667,7 +2367,7 @@ dependencies = [
  "chrono",
  "derive_more",
  "easy-ext",
- "hex",
+ "hex 0.4.3",
  "near-crypto 0.10.0",
  "near-primitives-core 0.10.0",
  "near-rpc-error-macro 0.10.0",
@@ -1679,11 +2379,41 @@ dependencies = [
  "regex",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.9.9",
  "smart-default",
  "validator",
 ]
 
+[[package]]
+name = "near-primitives"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97670b302dce15f09bba50f24c67aa08130fd01528cc61d4415892401e88e974"
+dependencies = [
+ "borsh 0.9.3",
+ "byteorder",
+ "bytesize",
+ "cfg-if 1.0.0",
+ "chrono",
+ "derive_more",
+ "easy-ext",
+ "hex 0.4.3",
+ "near-crypto 0.15.0",
+ "near-primitives-core 0.15.0",
+ "near-rpc-error-macro 0.15.0",
+ "near-vm-errors 0.15.0",
+ "num-rational",
+ "once_cell",
+ "primitive-types 0.10.1",
+ "rand 0.7.3",
+ "reed-solomon-erasure",
+ "serde",
+ "serde_json",
+ "smart-default",
+ "strum 0.24.1",
+ "thiserror",
+]
+
 [[package]]
 name = "near-primitives-core"
 version = "0.4.0"
@@ -1694,12 +2424,12 @@ dependencies = [
  "borsh 0.8.2",
  "bs58",
  "derive_more",
- "hex",
+ "hex 0.4.3",
  "lazy_static",
  "num-rational",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.9.9",
 ]
 
 [[package]]
@@ -1712,13 +2442,31 @@ dependencies = [
  "borsh 0.9.3",
  "bs58",
  "derive_more",
- "hex",
+ "hex 0.4.3",
  "lazy_static",
- "near-account-id",
+ "near-account-id 0.10.0",
  "num-rational",
  "serde",
  "serde_json",
- "sha2",
+ "sha2 0.9.9",
+]
+
+[[package]]
+name = "near-primitives-core"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7929e19d862221949734c4a0063a8f55e7069de3a2ebc2d4f4c13497a5e953cb"
+dependencies = [
+ "base64 0.13.0",
+ "borsh 0.9.3",
+ "bs58",
+ "derive_more",
+ "near-account-id 0.15.0",
+ "num-rational",
+ "serde",
+ "serde_repr",
+ "sha2 0.10.7",
+ "strum 0.24.1",
 ]
 
 [[package]]
@@ -1731,7 +2479,7 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1743,7 +2491,18 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "syn",
+ "syn 1.0.98",
+]
+
+[[package]]
+name = "near-rpc-error-core"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36addf90cc04bd547a627b3a292f59d7de4dd6fb5042115419ae901b93ce6c2d"
+dependencies = [
+ "quote",
+ "serde",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1757,7 +2516,7 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1771,7 +2530,18 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "syn",
+ "syn 1.0.98",
+]
+
+[[package]]
+name = "near-rpc-error-macro"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b5beb352f3b91d8c491646c2fa4fdbbbf463c7b9c0226951c28f0197de44f99"
+dependencies = [
+ "near-rpc-error-core 0.15.0",
+ "serde",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1783,7 +2553,7 @@ dependencies = [
  "borsh 0.8.2",
  "byteorder",
  "ethereum-types",
- "hex",
+ "hex 0.4.3",
  "lazy_static",
  "log",
  "near-crypto 0.1.0",
@@ -1812,6 +2582,21 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "near-sandbox-utils"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7479b0a2c52890000d410c6e4ba4f851334280530fa7446b78bcaf4683fe69b0"
+dependencies = [
+ "anyhow",
+ "async-process",
+ "binary-install",
+ "chrono",
+ "fs2",
+ "hex 0.3.2",
+ "home",
+]
+
 [[package]]
 name = "near-sdk"
 version = "4.0.0-pre.7"
@@ -1839,7 +2624,7 @@ dependencies = [
  "Inflector",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -1878,7 +2663,7 @@ dependencies = [
  "rocksdb",
  "serde",
  "serde_json",
- "strum",
+ "strum 0.20.0",
 ]
 
 [[package]]
@@ -1887,6 +2672,38 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6a7aa3f46fac44416d8a93d14f30a562c4d730a1c6bf14bffafab5f475c244a"
 
+[[package]]
+name = "near-units"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97a2b77f295d398589eeee51ad0887905ef1734fb12b45cb6d77bd7e401988b9"
+dependencies = [
+ "near-units-core",
+ "near-units-macro",
+]
+
+[[package]]
+name = "near-units-core"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89aa2a7985de87a08ca35f28abd8d00f0f901e704257e6e029aadef981386bc6"
+dependencies = [
+ "num-format",
+ "regex",
+]
+
+[[package]]
+name = "near-units-macro"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ab45d066220846f9bd5c21e9ab88c47c892edd36f962ada78bf8308523171a"
+dependencies = [
+ "near-units-core",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.98",
+]
+
 [[package]]
 name = "near-vm-errors"
 version = "0.10.0"
@@ -1894,12 +2711,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e781248bed1f8e4792aee0c0362cf8bc831fc9f51573bc43807b5e07e0e7db81"
 dependencies = [
  "borsh 0.9.3",
- "hex",
- "near-account-id",
+ "hex 0.4.3",
+ "near-account-id 0.10.0",
  "near-rpc-error-macro 0.10.0",
  "serde",
 ]
 
+[[package]]
+name = "near-vm-errors"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5591c9c8afa83a040cb5c3f29bc52b2efae2c32d4bcaee1bba723738da1a5cf6"
+dependencies = [
+ "borsh 0.9.3",
+ "near-account-id 0.15.0",
+ "near-rpc-error-macro 0.15.0",
+ "serde",
+ "strum 0.24.1",
+]
+
 [[package]]
 name = "near-vm-errors"
 version = "4.0.0-pre.1"
@@ -1907,7 +2737,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e281d8730ed8cb0e3e69fb689acee6b93cdb43824cd69a8ffd7e1bfcbd1177d7"
 dependencies = [
  "borsh 0.8.2",
- "hex",
+ "hex 0.4.3",
  "near-rpc-error-macro 0.1.0",
  "serde",
 ]
@@ -1922,14 +2752,14 @@ dependencies = [
  "borsh 0.9.3",
  "bs58",
  "byteorder",
- "near-account-id",
+ "near-account-id 0.10.0",
  "near-crypto 0.10.0",
  "near-primitives 0.10.0",
  "near-primitives-core 0.10.0",
  "near-vm-errors 0.10.0",
  "ripemd160",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "sha3",
 ]
 
@@ -1947,7 +2777,7 @@ dependencies = [
  "near-runtime-utils",
  "near-vm-errors 4.0.0-pre.1",
  "serde",
- "sha2",
+ "sha2 0.9.9",
  "sha3",
 ]
 
@@ -2009,6 +2839,16 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-format"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a652d9771a63711fd3c3deb670acfbe5c30a4072e664d7a3bf5a9e1056ac72c3"
+dependencies = [
+ "arrayvec 0.7.2",
+ "itoa",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.45"
@@ -2047,7 +2887,7 @@ version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.1.19",
  "libc",
 ]
 
@@ -2058,7 +2898,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37fd5004feb2ce328a52b0b3d01dbf4ffff72583493900ed15f22d4111c51693"
 dependencies = [
  "crc32fast",
- "indexmap",
+ "indexmap 1.9.1",
  "wasmparser 0.57.0",
 ]
 
@@ -2069,7 +2909,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d3b63360ec3cb337817c2dbd47ab4a0f170d285d8e5a2064600f3def1402397"
 dependencies = [
  "crc32fast",
- "indexmap",
+ "indexmap 1.9.1",
 ]
 
 [[package]]
@@ -2093,6 +2933,50 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
+[[package]]
+name = "openssl"
+version = "0.10.55"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "345df152bc43501c5eb9e4654ff05f794effb78d4efe3d53abc158baddc0703d"
+dependencies = [
+ "bitflags",
+ "cfg-if 1.0.0",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.22",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.90"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "374533b0e45f3a7ced10fcaeccca020e66656bc03dac384f852e4e5a7a8104a6"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "page_size"
 version = "0.4.2"
@@ -2126,7 +3010,7 @@ dependencies = [
  "proc-macro-crate 1.1.3",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -2147,6 +3031,12 @@ version = "0.41.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddfc878dac00da22f8f61e7af3157988424567ab01d9920b962ef7dcbd7cd865"
 
+[[package]]
+name = "parking"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14f2252c834a40ed9bb5422029649578e63aa341ac401f74e719dd1afda8394e"
+
 [[package]]
 name = "parking_lot"
 version = "0.10.2"
@@ -2168,6 +3058,16 @@ dependencies = [
  "parking_lot_core 0.8.5",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+dependencies = [
+ "lock_api 0.4.7",
+ "parking_lot_core 0.9.8",
+]
+
 [[package]]
 name = "parking_lot_core"
 version = "0.7.2"
@@ -2196,6 +3096,19 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "parking_lot_core"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93f00c865fe7cabf650081affecd3871070f26767e7b2070a3ffae14c654b447"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "redox_syscall 0.3.5",
+ "smallvec",
+ "windows-targets",
+]
+
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -2208,6 +3121,26 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
+[[package]]
+name = "pin-project"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e138fdd8263907a2b0e1b4e80b7e58c721126479b6e6eedfb1b402acea7b9bd"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1fef411b303e3e12d534fb6e7852de82da56edd937d895125821fb7c09436c7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.22",
+]
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.9"
@@ -2220,6 +3153,37 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
+
+[[package]]
+name = "polling"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b2d323e8ca7996b3e23126511a523f7e62924d93ecd5ae73b333815b0eb3dce"
+dependencies = [
+ "autocfg",
+ "bitflags",
+ "cfg-if 1.0.0",
+ "concurrent-queue",
+ "libc",
+ "log",
+ "pin-project-lite",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "portpicker"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be97d76faf1bfab666e1375477b23fde79eccf0276e9b63b92a39d676a889ba9"
+dependencies = [
+ "rand 0.8.5",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.16"
@@ -2278,7 +3242,7 @@ dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
  "version_check",
 ]
 
@@ -2295,9 +3259,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.40"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96a1e8ed2596c337f8eae5f24924ec83f5ad5ab21ea8e455d3566c69fbcaf7"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]
@@ -2336,9 +3300,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.20"
+version = "1.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
+checksum = "573015e8ab27661678357f27dc26460738fd2b6c86e46f386fde94cb5d913105"
 dependencies = [
  "proc-macro2",
 ]
@@ -2470,6 +3434,37 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "redox_users"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
+dependencies = [
+ "getrandom 0.1.16",
+ "redox_syscall 0.1.57",
+ "rust-argon2",
+]
+
+[[package]]
+name = "redox_users"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
+dependencies = [
+ "getrandom 0.2.7",
+ "redox_syscall 0.2.13",
+ "thiserror",
+]
+
 [[package]]
 name = "reed-solomon-erasure"
 version = "4.0.2"
@@ -2539,13 +3534,50 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "reqwest"
+version = "0.11.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cde824a14b7c14f85caff81225f411faacc04a2013f41670f41443742b1c1c55"
+dependencies = [
+ "base64 0.21.2",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "hyper",
+ "hyper-tls",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
+
 [[package]]
 name = "ripemd160"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2eca4ecc81b7f313189bf73ce724400a07da2a6dac19588b03c8bd76a2dcc251"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "digest 0.9.0",
  "opaque-debug",
 ]
@@ -2570,6 +3602,18 @@ dependencies = [
  "librocksdb-sys",
 ]
 
+[[package]]
+name = "rust-argon2"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b18820d944b33caa75a71378964ac46f58517c92b6ae5f762636247c09e78fb"
+dependencies = [
+ "base64 0.13.0",
+ "blake2b_simd",
+ "constant_time_eq",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.21"
@@ -2606,18 +3650,89 @@ dependencies = [
  "semver 1.0.12",
 ]
 
+[[package]]
+name = "rustix"
+version = "0.37.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62f25693a73057a1b4cb56179dd3c7ea21a7c6c5ee7d85781f5749b46f34b79c"
+dependencies = [
+ "bitflags",
+ "errno 0.3.1",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "rustversion"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f3208ce4d8448b3f3e7d168a73f5e0c43a61e32930de3bceeccedb388b6bf06"
+
 [[package]]
 name = "ryu"
 version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3f6f92acf49d1b98f7a81226834412ada05458b7364277387724a237f062695"
 
+[[package]]
+name = "schannel"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "713cfb06c7059f3588fb8044c0fad1d09e3c01d225e25b9220dbfdcf16dbb1b3"
+dependencies = [
+ "windows-sys 0.42.0",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "secp256k1"
+version = "0.24.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b1629c9c557ef9b293568b338dddfc8208c98a18c59d722a9d53f859d9c9b62"
+dependencies = [
+ "rand 0.8.5",
+ "secp256k1-sys",
+]
+
+[[package]]
+name = "secp256k1-sys"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83080e2c2fc1006e625be82e5d1eb6a43b7fd9578b617fcc55814daf286bba4b"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "security-framework"
+version = "2.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fc758eb7bffce5b308734e9b0c1468893cae9ff70ebf13e7090be8dcbcc83a8"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f51d0c0d83bec45f16480d0ce0058397a69e48fcdc52d1dc8855fb68acbd31a7"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "semver"
 version = "0.9.0"
@@ -2641,9 +3756,9 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.138"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1578c6245786b9d168c5447eeacfb96856573ca56c9d68fdcf394be134882a47"
+checksum = "9e8c8cf938e98f769bc164923b06dce91cea1751522f46f8466461af04c9027d"
 dependencies = [
  "serde_derive",
 ]
@@ -2669,22 +3784,45 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.138"
+version = "1.0.164"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "023e9b1467aef8a10fb88f25611870ada9800ef7e22afce356bb0d2387b6f27c"
+checksum = "d9735b638ccc51c28bf6914d90a2e9725b377144fc612c49a611fddd1b631d68"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.22",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.82"
+version = "1.0.99"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
+dependencies = [
+ "indexmap 2.0.0",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "serde_repr"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.22",
+]
+
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82c2c1fdcd807d1098552c5b9a36e425e42e9fbd7c6a37a8425f390f781f7fa7"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
 dependencies = [
- "indexmap",
+ "form_urlencoded",
  "itoa",
  "ryu",
  "serde",
@@ -2696,20 +3834,31 @@ version = "0.9.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "cfg-if 1.0.0",
  "cpufeatures",
  "digest 0.9.0",
  "opaque-debug",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
+dependencies = [
+ "cfg-if 1.0.0",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
 [[package]]
 name = "sha3"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f81199417d4e5de3f04b1e871023acea7389672c4135918f05aa9cbf2f2fa809"
 dependencies = [
- "block-buffer",
+ "block-buffer 0.9.0",
  "digest 0.9.0",
  "keccak",
  "opaque-debug",
@@ -2721,12 +3870,37 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
 
+[[package]]
+name = "signal-hook"
+version = "0.3.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "732768f1176d21d09e076c23a93123d40bba92d50c4058da34d45c8de8e682b9"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d8229b473baa5980ac72ef434c4415e70c4b5e71b423043adb4ba059f89c99a1"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "signature"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f054c6c1a6e95179d6f23ed974060dcefb2d9388bb7256900badad682c499de4"
 
+[[package]]
+name = "siphasher"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b8de496cf83d4ed58b6be86c3a275b8602f6ffe98d3024a869e124147a9a3ac"
+
 [[package]]
 name = "slab"
 version = "0.4.6"
@@ -2747,7 +3921,7 @@ checksum = "133659a15339456eeeb07572eb02a91c91e9815e9cbc89566944d2c8d3efdbf6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -2760,6 +3934,16 @@ dependencies = [
  "near-sdk-sim",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
@@ -2784,7 +3968,16 @@ version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7318c509b5ba57f18533982607f24070a55d353e90d4cae30c467cdb2ad5ac5c"
 dependencies = [
- "strum_macros",
+ "strum_macros 0.20.1",
+]
+
+[[package]]
+name = "strum"
+version = "0.24.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "063e6045c0e62079840579a7e47a355ae92f60eb74daaf156fb1e84ba164e63f"
+dependencies = [
+ "strum_macros 0.24.3",
 ]
 
 [[package]]
@@ -2793,10 +3986,23 @@ version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee8bc6b87a5112aeeab1f4a9f7ab634fe6cbefc4850006df31267f4cfb9e3149"
 dependencies = [
- "heck",
+ "heck 0.3.3",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.98",
+]
+
+[[package]]
+name = "strum_macros"
+version = "0.24.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59"
+dependencies = [
+ "heck 0.4.1",
  "proc-macro2",
  "quote",
- "syn",
+ "rustversion",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -2816,6 +4022,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2efbeae7acf4eabd6bcdcbd11c92f45231ddda7539edc7806bd1a04a03b24616"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.12.6"
@@ -2824,7 +4041,7 @@ checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
  "unicode-xid",
 ]
 
@@ -2834,6 +4051,17 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
 
+[[package]]
+name = "tar"
+version = "0.4.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b55807c0344e1e6c04d7c965f5289c39a8d94ae23ed5c0b57aabac549f871c6"
+dependencies = [
+ "filetime",
+ "libc",
+ "xattr",
+]
+
 [[package]]
 name = "target-lexicon"
 version = "0.10.0"
@@ -2862,22 +4090,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.31"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.31"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.22",
 ]
 
 [[package]]
@@ -2915,6 +4143,72 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
+[[package]]
+name = "tokio"
+version = "1.29.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da"
+dependencies = [
+ "autocfg",
+ "backtrace",
+ "bytes",
+ "libc",
+ "mio",
+ "num_cpus",
+ "parking_lot 0.12.1",
+ "pin-project-lite",
+ "signal-hook-registry",
+ "socket2",
+ "tokio-macros",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.22",
+]
+
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-retry"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f57eb36ecbe0fc510036adff84824dd3c24bb781e21bfa67b69d556aa85214f"
+dependencies = [
+ "pin-project",
+ "rand 0.8.5",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
+]
+
 [[package]]
 name = "toml"
 version = "0.5.9"
@@ -2924,6 +4218,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "tower-service"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+
 [[package]]
 name = "tracing"
 version = "0.1.34"
@@ -2944,7 +4244,7 @@ checksum = "11c75893af559bc8e10716548bdef5cb2b983f8e637db9d0e15126b61b484ee2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -2956,6 +4256,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "try-lock"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
+
 [[package]]
 name = "typenum"
 version = "1.15.0"
@@ -2970,7 +4276,7 @@ checksum = "12f03af7ccf01dd611cc450a0d10dbc9b745770d096473e2faf0ca6e2d66d1e0"
 dependencies = [
  "byteorder",
  "crunchy",
- "hex",
+ "hex 0.4.3",
  "static_assertions",
 ]
 
@@ -3023,6 +4329,16 @@ dependencies = [
  "idna",
  "matches",
  "percent-encoding",
+ "serde",
+]
+
+[[package]]
+name = "uuid"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d023da39d1fde5a8a3fe1f3e01ca9632ada0a63e9797de55a879d6e2236277be"
+dependencies = [
+ "getrandom 0.2.7",
 ]
 
 [[package]]
@@ -3047,6 +4363,12 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad9680608df133af2c1ddd5eaf1ddce91d60d61b6bc51494ef326458365a470a"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -3059,6 +4381,21 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 
+[[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
+[[package]]
+name = "want"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
@@ -3077,6 +4414,72 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c53b543413a17a202f4be280a7e5c62a1c69345f5de525ee64f8cfdbc954994"
+dependencies = [
+ "cfg-if 1.0.0",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5491a68ab4500fa6b4d726bd67408630c3dbe9c4fe7bda16d5c82a1fd8c7340a"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.98",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de9a9cec1733468a8c657e57fa2413d2ae2c0129b95e87c5b72b8ace4d13f31f"
+dependencies = [
+ "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c441e177922bc58f1e12c022624b6216378e5febc2f0533e41ba443d505b80aa"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d94ac45fcf608c1f45ef53e748d35660f168490c10b23704c7779ab8f5c3048"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.98",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.81"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a89911bd99e5f3659ec4acf9c4d93b0a90fe4a2a11f15328472058edc5261be"
+
 [[package]]
 name = "wasm-encoder"
 version = "0.14.0"
@@ -3093,7 +4496,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a70cfae554988d904d64ca17ab0e7cd652ee5c8a0807094819c1ea93eb9d6866"
 dependencies = [
  "cfg-if 0.1.10",
- "indexmap",
+ "indexmap 1.9.1",
  "more-asserts",
  "target-lexicon 0.11.2",
  "thiserror",
@@ -3173,7 +4576,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
 ]
 
 [[package]]
@@ -3258,9 +4661,9 @@ dependencies = [
  "blake3",
  "cc",
  "digest 0.8.1",
- "errno",
- "hex",
- "indexmap",
+ "errno 0.2.8",
+ "hex 0.4.3",
+ "indexmap 1.9.1",
  "lazy_static",
  "libc",
  "nix",
@@ -3330,7 +4733,7 @@ dependencies = [
  "backtrace",
  "cc",
  "cfg-if 0.1.10",
- "indexmap",
+ "indexmap 1.9.1",
  "libc",
  "memoffset 0.6.5",
  "more-asserts",
@@ -3432,7 +4835,7 @@ dependencies = [
  "cranelift-entity 0.67.0",
  "cranelift-wasm",
  "gimli 0.21.0",
- "indexmap",
+ "indexmap 1.9.1",
  "log",
  "more-asserts",
  "serde",
@@ -3510,7 +4913,7 @@ dependencies = [
  "backtrace",
  "cc",
  "cfg-if 0.1.10",
- "indexmap",
+ "indexmap 1.9.1",
  "lazy_static",
  "libc",
  "log",
@@ -3543,6 +4946,16 @@ dependencies = [
  "wast",
 ]
 
+[[package]]
+name = "web-sys"
+version = "0.3.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fed94beee57daf8dd7d51f2b15dc2bcde92d7a72304cdf662a4371008b71b90"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "wee_alloc"
 version = "0.4.5"
@@ -3588,12 +5001,186 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.0",
+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+
+[[package]]
+name = "winreg"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "workspaces"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73b13d249618f197811e3673decc81459730cf5cc09ee7246dc4bede1e9333bc"
+dependencies = [
+ "async-process",
+ "async-trait",
+ "base64 0.13.0",
+ "borsh 0.9.3",
+ "bs58",
+ "chrono",
+ "dirs 3.0.2",
+ "hex 0.4.3",
+ "libc",
+ "near-account-id 0.15.0",
+ "near-crypto 0.15.0",
+ "near-jsonrpc-client",
+ "near-jsonrpc-primitives",
+ "near-primitives 0.15.0",
+ "near-sandbox-utils",
+ "portpicker",
+ "rand 0.8.5",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "tokio",
+ "tokio-retry",
+ "tracing",
+ "url",
+]
+
 [[package]]
 name = "wyz"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "85e60b0d1b5f99db2556934e21937020776a5d31520bf169e851ac44e6420214"
 
+[[package]]
+name = "xattr"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d1526bbe5aaeb5eb06885f4d987bcdfa5e23187055de9b83fe00156a821fabc"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "zeroize"
 version = "1.3.0"
@@ -3611,6 +5198,20 @@ checksum = "3f8f187641dad4f680d25c4bfc4225b418165984179f26ca76ec4fb6441d3a17"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.98",
  "synstructure",
 ]
+
+[[package]]
+name = "zip"
+version = "0.5.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93ab48844d61251bb3835145c521d88aa4031d7139e8485990f60ca911fa0815"
+dependencies = [
+ "byteorder",
+ "bzip2",
+ "crc32fast",
+ "flate2",
+ "thiserror",
+ "time",
+]
diff --git a/Cargo.toml b/Cargo.toml
index e20dfeb..529d113 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,4 +23,5 @@ overflow-checks = true
 [workspace]
 members = [
     "contract",
+    "integration-tests"
 ]
diff --git a/build_docker.sh b/build_docker.sh
index ffaba61..1c7ba01 100755
--- a/build_docker.sh
+++ b/build_docker.sh
@@ -24,7 +24,7 @@ fi
 perl -i -pe 's/\["cdylib", "rlib"\]/\["cdylib"\]/' Cargo.toml
 
 docker start $NAME
-docker exec -it $NAME /bin/bash -c "rustup toolchain install 1.62.0; rustup default 1.62.0; rustup target add wasm32-unknown-unknown; cargo build --all --target wasm32-unknown-unknown --release"
+docker exec -it $NAME /bin/bash -c "rustup toolchain install 1.69.0; rustup default 1.69.0; rustup target add wasm32-unknown-unknown; cargo build --all --target wasm32-unknown-unknown --release"
 
 perl -i -pe 's/\["cdylib"\]/\["cdylib", "rlib"\]/' Cargo.toml
 
diff --git a/contract/src/account.rs b/contract/src/account.rs
index 22e59a9..9136597 100644
--- a/contract/src/account.rs
+++ b/contract/src/account.rs
@@ -264,6 +264,30 @@ impl Contract {
                 ),
             })
     }
+
+    /// Withdraw storage deposit from the account id to the predecessor account.
+    /// Assumes that predecessor is authorized to withdraw from the account.
+    pub fn internal_storage_withdraw(
+        &mut self,
+        withdraw_from: &AccountId,
+        amount: Option<U128>,
+    ) -> StorageBalance {
+        if let Some(storage_balance) = self.internal_storage_balance_of(&withdraw_from) {
+            let amount = amount.unwrap_or(storage_balance.available).0;
+            if amount > storage_balance.available.0 {
+                env::panic_str("The amount is greater than the available storage balance");
+            }
+            if amount > 0 {
+                let mut account = self.internal_unwrap_account(withdraw_from.as_str());
+                account.storage_balance -= amount;
+                self.internal_set_account(account);
+                Promise::new(env::predecessor_account_id()).transfer(amount);
+            }
+            self.internal_storage_balance_of(&withdraw_from).unwrap()
+        } else {
+            env::panic_str(&format!("The account {} is not registered", &withdraw_from));
+        }
+    }
 }
 
 #[near_bindgen]
@@ -299,21 +323,7 @@ impl StorageManagement for Contract {
         self.assert_live();
         assert_one_yocto();
         let account_id = env::predecessor_account_id();
-        if let Some(storage_balance) = self.internal_storage_balance_of(&account_id) {
-            let amount = amount.unwrap_or(storage_balance.available).0;
-            if amount > storage_balance.available.0 {
-                env::panic_str("The amount is greater than the available storage balance");
-            }
-            if amount > 0 {
-                let mut account = self.internal_unwrap_account(account_id.as_str());
-                account.storage_balance -= amount;
-                self.internal_set_account(account);
-                Promise::new(account_id.clone()).transfer(amount);
-            }
-            self.internal_storage_balance_of(&account_id).unwrap()
-        } else {
-            env::panic_str(&format!("The account {} is not registered", &account_id));
-        }
+        self.internal_storage_withdraw(&account_id, amount)
     }
 
     #[allow(unused_variables)]
diff --git a/contract/src/api.rs b/contract/src/api.rs
index efd486e..25c5e1e 100644
--- a/contract/src/api.rs
+++ b/contract/src/api.rs
@@ -38,6 +38,12 @@ pub struct KeysOptions {
     pub values_only: Option<bool>,
 }
 
+#[derive(Serialize, Deserialize, Default)]
+#[serde(crate = "near_sdk::serde")]
+pub struct SetOptions {
+    pub refund_unused_deposit: Option<bool>,
+}
+
 #[near_bindgen]
 impl Contract {
     /// ```js
@@ -125,16 +131,20 @@ impl Contract {
     ///     }
     ///   }
     /// })
+    ///
+    /// When `refund_unused_deposit` is set to `true`, the part of the deposit that covers unused
+    /// storage will be refunded to the caller.
+    ///
     /// ```
     #[payable]
-    pub fn set(&mut self, mut data: Value) {
+    pub fn set(&mut self, mut data: Value, options: Option<SetOptions>) {
         self.assert_live();
-        let account_id = env::predecessor_account_id();
+        let options = options.unwrap_or_default();
+        let predecessor_account_id = env::predecessor_account_id();
         let mut attached_balance = env::attached_deposit();
         for (key, value) in data.as_object_mut().expect("Data is not a JSON object") {
             let mut account = self.internal_unwrap_account_or_create(key, attached_balance);
-            attached_balance = 0;
-            let write_approved = key == account_id.as_str();
+            let write_approved = key == predecessor_account_id.as_str();
             let writable_node_ids = if write_approved {
                 HashSet::new()
             } else {
@@ -145,6 +155,19 @@ impl Contract {
             self.recursive_set(node, value, write_approved, &writable_node_ids);
             account.storage_tracker.stop();
             self.internal_set_account(account);
+
+            if options.refund_unused_deposit.unwrap_or(false) && attached_balance > 0 {
+                // The key is the account id that received the deposit.
+                let account_id: AccountId = key.parse().expect("key is valid account id");
+                if let Some(balance) = self.internal_storage_balance_of(&account_id) {
+                    // We shouldn't refund more than what was deposited in this call.
+                    let refund = std::cmp::min(balance.available.0, attached_balance);
+                    self.internal_storage_withdraw(&account_id, Some(refund.into()));
+                }
+            }
+
+            // First key receives all the deposit.
+            attached_balance = 0;
         }
         if attached_balance > 0 {
             env::panic_str("The attached deposit could not be added to any account");
diff --git a/integration-tests/Cargo.toml b/integration-tests/Cargo.toml
new file mode 100644
index 0000000..f55ce50
--- /dev/null
+++ b/integration-tests/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "integration-tests"
+version = "1.0.0"
+publish = false
+edition = "2018"
+
+[dev-dependencies]
+anyhow = "1.0"
+near-units = "0.2.0"
+# arbitrary_precision enabled for u128 types that workspaces requires for Balance types
+serde_json = { version = "1.0", features = ["arbitrary_precision"] }
+tokio = { version = "1.18.1", features = ["full"] }
+workspaces = "0.7.0"
+
+[[example]]
+name = "set_method"
+path = "src/set.rs"
diff --git a/integration-tests/README.md b/integration-tests/README.md
new file mode 100644
index 0000000..303a603
--- /dev/null
+++ b/integration-tests/README.md
@@ -0,0 +1,12 @@
+# Integration Tests
+
+This directory contains integration tests for the Social DB contract.
+
+The build script compiles the WASM contract automatically if there are changes
+in the contract source code.
+
+Run a specific integration test with:
+
+```bash
+ cargo run --example set_method
+```
diff --git a/integration-tests/build.rs b/integration-tests/build.rs
new file mode 100644
index 0000000..baea130
--- /dev/null
+++ b/integration-tests/build.rs
@@ -0,0 +1,20 @@
+#[path = "src/get_workspace_dir.rs"]
+mod get_workspace_dir;
+
+use crate::get_workspace_dir::get_workspace_dir;
+
+static CONTRACT_DIR: &str = "contract";
+
+fn main() {
+    let workspace_dir = get_workspace_dir();
+    let contract_dir = workspace_dir.join(CONTRACT_DIR);
+    // Tell Cargo to rerun this script if the `contract` source changes.
+    println!("cargo:rerun-if-changed={}", contract_dir.to_str().expect("valid UTF-8 path"));
+    // Run build_local.sh
+    let status = std::process::Command::new("bash")
+        .arg("build_local.sh")
+        .current_dir(&workspace_dir)
+        .status()
+        .expect("failed to execute build_local.sh");
+    assert!(status.success());
+}
diff --git a/integration-tests/src/get_workspace_dir.rs b/integration-tests/src/get_workspace_dir.rs
new file mode 100644
index 0000000..740b0b9
--- /dev/null
+++ b/integration-tests/src/get_workspace_dir.rs
@@ -0,0 +1,18 @@
+use std::fs;
+use std::path::{Path, PathBuf};
+
+/// Get the canonical workspace directory.
+/// From https://stackoverflow.com/a/74942075
+pub fn get_workspace_dir() -> PathBuf {
+    let output = std::process::Command::new(env!("CARGO"))
+        .arg("locate-project")
+        .arg("--workspace")
+        .arg("--message-format=plain")
+        .output()
+        .unwrap()
+        .stdout;
+    let cargo_path = Path::new(std::str::from_utf8(&output).unwrap().trim());
+    fs::canonicalize(cargo_path.parent().unwrap().to_path_buf()).expect("can canonicalize workspace dir")
+}
+
+
diff --git a/integration-tests/src/set.rs b/integration-tests/src/set.rs
new file mode 100644
index 0000000..521909e
--- /dev/null
+++ b/integration-tests/src/set.rs
@@ -0,0 +1,193 @@
+mod get_workspace_dir;
+
+use crate::get_workspace_dir::get_workspace_dir;
+use anyhow::Result;
+use near_units::parse_near;
+use serde_json::json;
+use std::collections::HashMap;
+use std::fs;
+use workspaces::network::Sandbox;
+use workspaces::{Account, Contract, Worker};
+
+static CONTRACT_WASM_FILEPATH: &str = "res/social_db_local.wasm";
+
+/// Tests the `set` method.
+#[tokio::main]
+async fn main() -> Result<()> {
+    test_set_method().await?;
+    test_set_method_and_refund().await?;
+    test_set_method_and_refund_with_existing_deposit().await?;
+    Ok(())
+}
+
+/// Sanity check that we can `set` and `get` a value.
+async fn test_set_method() -> Result<()> {
+    let (_, contract, user) = init_contract_and_user().await?;
+
+    let user_id = user.id().to_string();
+    let name = "Alice";
+    let args = json!({
+        "data": {
+            &user_id: {
+                "profile": {
+                    "name": name,
+                },
+            }
+        }
+    });
+
+    user.call(contract.id(), "set")
+        .args_json(args)
+        .deposit(parse_near!("0.1 N"))
+        .transact()
+        .await?
+        .into_result()?;
+
+    let name_key = format!("{user_id}/profile/name");
+    let result = user
+        .view(contract.id(), "get")
+        .args_json(json!({ "keys": [name_key] }))
+        .await?
+        .json::<HashMap<String, HashMap<String, HashMap<String, String>>>>()?;
+    let result_name = result
+        .get(&user_id)
+        .unwrap()
+        .get("profile")
+        .unwrap()
+        .get("name")
+        .unwrap();
+
+    assert_eq!(name, result_name);
+
+    Ok(())
+}
+
+/// Test that if a user requests a refund, they receive it.
+async fn test_set_method_and_refund() -> Result<()> {
+    let (_, contract, user) = init_contract_and_user().await?;
+
+    let user_id = user.id().to_string();
+    let name = "Alice";
+    let args = json!({
+        "data": {
+            &user_id: {
+                "profile": {
+                    "name": name,
+                },
+            }
+        },
+        "options": {
+            "refund_unused_deposit": true
+        }
+    });
+
+    let prev_balance = user.view_account().await?.balance;
+    let deposit = parse_near!("1 N");
+
+    user.call(contract.id(), "set")
+        .args_json(args)
+        .deposit(deposit)
+        .transact()
+        .await?
+        .into_result()?;
+
+    let post_balance = user.view_account().await?.balance;
+
+    // Check that the refund isn't more than the deposit. Because of gas fees post balance must be
+    // less than prev balance.
+    assert!(post_balance < prev_balance);
+    // Check that the refund is received.
+    assert!(post_balance > prev_balance - deposit);
+
+    Ok(())
+}
+
+/// Tests that when two users fund an account and only the second requests a refund:
+/// 1. First user doesn't receive refund.
+/// 2. Second user does receive refund.
+/// 3. Second user doesn't receive more than what they put in.
+async fn test_set_method_and_refund_with_existing_deposit() -> Result<()> {
+    let (worker, contract, first_user) = init_contract_and_user().await?;
+
+    let key = first_user.id().to_string();
+    let args = json!({
+        "data": {
+            &key: {
+                "profile": {
+                    "name": "Alice",
+                },
+            }
+        },
+    });
+
+    let deposit = parse_near!("1 N");
+
+    let first_prev_balance = first_user.view_account().await?.balance;
+    first_user
+        .call(contract.id(), "set")
+        .args_json(args)
+        .deposit(deposit)
+        .transact()
+        .await?
+        .into_result()?;
+
+    let second_user = worker.dev_create_account().await?;
+
+    let args = json!({
+        "data": {
+            &key: {}
+        },
+        "options": {
+            "refund_unused_deposit": true
+        }
+    });
+
+    let second_prev_balance = second_user.view_account().await?.balance;
+    second_user
+        .call(contract.id(), "set")
+        .args_json(args)
+        .deposit(deposit)
+        .transact()
+        .await?
+        .into_result()?;
+    let first_post_balance = first_user.view_account().await?.balance;
+    let second_post_balance = second_user.view_account().await?.balance;
+
+    // Make sure first user didn't receive refund.
+    assert!(first_post_balance < first_prev_balance - deposit);
+    // Make sure second user did receive refund.
+    assert!(second_post_balance > second_prev_balance - deposit);
+    // Make sure second user didn't receive more than what they put in.
+    assert!(second_post_balance < second_prev_balance);
+
+    Ok(())
+}
+
+async fn init_contract_and_user() -> Result<(Worker<Sandbox>, Contract, Account)> {
+    let workspace_dir = get_workspace_dir();
+    let wasm_filepath = workspace_dir.join(CONTRACT_WASM_FILEPATH);
+
+    let worker = workspaces::sandbox().await?;
+    let wasm = fs::read(wasm_filepath)?;
+
+    let contract = worker.dev_deploy(&wasm).await?;
+    contract.call("new").transact().await?.into_result()?;
+    contract
+        .as_account()
+        .call(contract.id(), "set_status")
+        .args_json(json!({
+            "status": "Live"
+        }))
+        .transact()
+        .await?
+        .into_result()?;
+
+    let account = worker.dev_create_account().await?;
+    let user = account
+        .create_subaccount("alice")
+        .initial_balance(parse_near!("30 N"))
+        .transact()
+        .await?
+        .into_result()?;
+    Ok((worker, contract, user))
+}
diff --git a/res/social_db_release.wasm b/res/social_db_release.wasm
index 37fcb16..082f188 100644
Binary files a/res/social_db_release.wasm and b/res/social_db_release.wasm differ
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..8f357ce
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.69"
diff --git a/tests/basic.rs b/tests/basic.rs
deleted file mode 100644
index d7f22d0..0000000
--- a/tests/basic.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-#[test]
-fn test_init() {
-}