From 68744d549c1b1c4a528a9e7abbe8edb070943a60 Mon Sep 17 00:00:00 2001
From: Mario Pino <info@quequiereshacer.es>
Date: Sun, 8 Mar 2020 18:13:38 +0100
Subject: [PATCH] Use polling instead subscription in Kusama (#406)

* uncomment polkadot

* bug fixes

* pollForNewBlock

* mod getBlockHeight

* add again commented api disconnect to not forget

* enqueueAndPublishBlockAdded

* re-subscribe on error

* stringify error

* stringify errors

* api.isReady

* Add delay to newBlockHandler

* Ana/add balances to kusama (#405)

* rudimentary balance

* add some comment

* Ana/switch polkadot to rest calls (#408)

* add rewards and overview functions. not working

* poll instead of subscribe to blocks

* switch over to http provider

* fix lint errors

* use httpprovider

* getting last block hash

* get blockhash and header. but no height

* back to normal. use mario node subscription

* successfully get block height polling with http

* get block hash from http. use polling

* uncomment all other networks

* pass the store to source classes

* create the api only once

* comment api.disconnect()

* added polling fix and quick querying

* fixed block height query

* clean up

* comment

* cleanup and optimization

Co-authored-by: Fabian Weber <frznhope@gmail.com>
Co-authored-by: mariopino <info@quequiereshacer.es>

* remove unused dependency

Co-authored-by: Bitcoinera <anagjordano@gmail.com>
Co-authored-by: Ana G <40721795+Bitcoinera@users.noreply.github.com>
Co-authored-by: Fabian Weber <frznhope@gmail.com>
---
 data/networks.js                              |  70 +--
 .../polkadot-node-subscription.js             |  73 ++-
 lib/network-container.js                      |   2 +-
 lib/reducers/polkadotV0-reducers.js           |  19 +-
 lib/source/polkadotV0-source.js               |  70 ++-
 yarn.lock                                     | 566 +++++++++++++++++-
 6 files changed, 711 insertions(+), 89 deletions(-)

diff --git a/data/networks.js b/data/networks.js
index bb5e9eef5c..3d13bd3253 100644
--- a/data/networks.js
+++ b/data/networks.js
@@ -186,43 +186,43 @@ module.exports = [
     enabled: true,
     icon: 'https://app.lunie.io/img/networks/emoney-testnet.png',
     slug: 'emoney-testnet'
+  },
+  {
+    id: 'polkadot-testnet',
+    title: 'Kusama',
+    chain_id: 'kusama-cc3',
+    api_url: 'https://host-01.polkascan.io/kusama/api/v1/',
+    rpc_url: 'wss://kusama-rpc.polkadot.io/',
+    bech32_prefix: ' ',
+    address_prefix: ' ',
+    ledger_app: 'polkadot',
+    address_creator: 'polkadot',
+    network_type: 'polkadot',
+    source_class_name: 'source/polkadotV0-source',
+    block_listener_class_name: 'block-listeners/polkadot-node-subscription',
+    testnet: true,
+    feature_session: true,
+    feature_explore: true,
+    feature_portfolio: true,
+    feature_validators: true,
+    feature_proposals: false,
+    feature_activity: false,
+    feature_explorer: false,
+    action_send: true,
+    action_claim_rewards: false,
+    action_delegate: true,
+    action_redelegate: true,
+    action_undelegate: true,
+    action_deposit: false,
+    action_vote: false,
+    action_proposal: false,
+    default: false,
+    stakingDenom: 'KSM',
+    enabled: true,
+    icon: 'https://app.lunie.io/img/networks/polkadot-testnet.png',
+    slug: 'kusama'
   }
   // {
-  //   id: 'polkadot-testnet',
-  //   title: 'Kusama',
-  //   chain_id: 'kusama-cc3',
-  //   api_url: 'https://host-01.polkascan.io/kusama/api/v1/',
-  //   rpc_url: 'wss://kusama-rpc.polkadot.io/',
-  //   bech32_prefix: ' ',
-  //   address_prefix: ' ',
-  //   ledger_app: 'polkadot',
-  //   address_creator: 'polkadot',
-  //   network_type: 'polkadot',
-  //   source_class_name: 'source/polkadotV0-source',
-  //   block_listener_class_name: 'block-listeners/polkadot-node-subscription',
-  //   testnet: true,
-  //   feature_session: true,
-  //   feature_explore: true,
-  //   feature_portfolio: true,
-  //   feature_validators: true,
-  //   feature_proposals: false,
-  //   feature_activity: false,
-  //   feature_explorer: false,
-  //   action_send: true,
-  //   action_claim_rewards: false,
-  //   action_delegate: true,
-  //   action_redelegate: true,
-  //   action_undelegate: true,
-  //   action_deposit: false,
-  //   action_vote: false,
-  //   action_proposal: false,
-  //   default: false,
-  //   stakingDenom: 'KSM',
-  //   enabled: true,
-  //   icon: 'https://app.lunie.io/img/networks/polkadot-testnet.png',
-  //   slug: 'kusama'
-  // }
-  // {
   //   id: 'livepeer-mainnet',
   //   title: 'Livepeer',
   //   chain_id: 'ethereum-1',
diff --git a/lib/block-listeners/polkadot-node-subscription.js b/lib/block-listeners/polkadot-node-subscription.js
index 864830eded..9f993e0554 100644
--- a/lib/block-listeners/polkadot-node-subscription.js
+++ b/lib/block-listeners/polkadot-node-subscription.js
@@ -1,4 +1,5 @@
 const _ = require('lodash')
+const { ApiPromise, WsProvider } = require('@polkadot/api')
 const {
   publishBlockAdded
   // publishUserTransactionAdded,
@@ -8,12 +9,15 @@ const Sentry = require('@sentry/node')
 const database = require('../database')
 const config = require('../../config.js')
 
+const POLLING_INTERVAL = 1000
+// const NEW_BLOCK_DELAY = 2000
+
 // This class polls for new blocks
 // Used for listening to events, such as new blocks.
 class PolkadotNodeSubscription {
   constructor(network, PolkadotApiClass, store) {
     this.network = network
-    this.polkadotAPI = new PolkadotApiClass(network)
+    this.polkadotAPI = new PolkadotApiClass(network, store)
     this.store = store
     this.validators = []
     this.sessionValidators = []
@@ -22,36 +26,52 @@ class PolkadotNodeSubscription {
     this.height = 0
     this.currentSessionIndex = 0
     this.blockQueue = []
-    this.subscribeForNewBlock()
+    this.pollForNewBlock()
+  }
+
+  // here we init the polkadot rpc once for all processes
+  // the class gets stored in the store to be used by all instances
+  async initPolkadotRPC() {
+    this.api = new ApiPromise({
+      provider: new WsProvider(this.network.rpc_url)
+    })
+    this.store.polkadotRPC = this.api
+    await this.api.isReady
   }
 
-  async subscribeForNewBlock() {
-    const api = await this.polkadotAPI.getAPIPromise()
+  // poll latest block height and handle all blocks unknown to this API yet in order
+  async checkForNewBlock() {
+    try {
+      const blockHeight = await this.polkadotAPI.getBlockHeight()
+
+      // if we get a newer block then expected query for all the outstanding blocks
+      while (blockHeight > this.height) {
+        this.height = this.height ? this.height++ : blockHeight
+
+        this.newBlockHandler(this.height)
 
-    // Subscribe to new block headers
-    await api.rpc.chain.subscribeNewHeads(async blockHeader => {
-      const blockHeight = blockHeader.number.toNumber()
-      if (this.height < blockHeight) {
-        this.height = blockHeight
-        console.log(`\x1b[36mNew kusama block #${blockHeight}\x1b[0m`)
-        this.newBlockHandler(blockHeight)
+        // we are safe, that the chain produced a block so it didn't hang up
+        if (this.chainHangup) clearTimeout(this.chainHangup)
       }
-    })
+    } catch (error) {
+      console.error('Failed to check for a new block', error)
+      Sentry.captureException(error)
+    }
   }
 
-  // Sometimes blocks get published unordered so we need to enqueue
-  // them before publish to ensure correct order. This adds 3 blocks delay.
-  enqueueAndPublishBlockAdded(newBlock) {
-    this.blockQueue.push(newBlock)
-    if (this.blockQueue.length > 2) {
-      this.blockQueue.sort((a, b) =>
-        a.height > b.height ? 1 : b.height > a.height ? -1 : 0
-      )
-      console.log(
-        `\x1b[36mPublishing new kusama block #${newBlock.height}\x1b[0m`
-      )
-      publishBlockAdded(this.network.id, this.blockQueue.shift())
+  async pollForNewBlock() {
+    // here we init the polkadot rpc once for all processes
+    if (!this.api) {
+      await this.initPolkadotRPC()
     }
+
+    // immediatly check and not wait the polling delay
+    await this.checkForNewBlock()
+
+    this.pollingTimeout = setTimeout(async () => {
+      await this.checkForNewBlock()
+      this.pollForNewBlock()
+    }, POLLING_INTERVAL)
   }
 
   // For each block event, we fetch the block information and publish a message.
@@ -64,8 +84,7 @@ class PolkadotNodeSubscription {
       })
 
       const block = await this.polkadotAPI.getBlockByHeight(blockHeight)
-      // publishBlockAdded(this.network.id, block)
-      this.enqueueAndPublishBlockAdded(block)
+      publishBlockAdded(this.network.id, block)
 
       // We dont need to fetch validators on every new block.
       // Validator list only changes on new sessions
@@ -106,7 +125,7 @@ class PolkadotNodeSubscription {
       //   publishEvent(this.network.id, 'transaction', address, tx)
       // })
     } catch (error) {
-      console.error(`newBlockHandler failed: ${error}`)
+      console.error(`newBlockHandler failed`, JSON.stringify(error, null, 2))
       Sentry.captureException(error)
     }
   }
diff --git a/lib/network-container.js b/lib/network-container.js
index 235c5cb4d2..e2abe56f2a 100644
--- a/lib/network-container.js
+++ b/lib/network-container.js
@@ -44,7 +44,7 @@ class NetworkContainer {
   createDataSource() {
     if (this.sourceClass) {
       return {
-        api: new this.sourceClass(this.network),
+        api: new this.sourceClass(this.network, this.store),
         store: this.store
       }
     }
diff --git a/lib/reducers/polkadotV0-reducers.js b/lib/reducers/polkadotV0-reducers.js
index 8acdebee36..b56834c7ce 100644
--- a/lib/reducers/polkadotV0-reducers.js
+++ b/lib/reducers/polkadotV0-reducers.js
@@ -1,3 +1,7 @@
+const BigNumber = require('bignumber.js')
+
+const POLKADOT_CONVERSION = 1000000000000
+
 function blockReducer(
   networkId,
   blockHeight,
@@ -49,7 +53,20 @@ function validatorReducer(network, validator) {
   }
 }
 
+function balanceReducer(balance) {
+  // hack. We convert the balance into an Array to make it an Iterable
+  return [
+    {
+      amount: BigNumber(balance)
+        .div(POLKADOT_CONVERSION)
+        .toFixed(4),
+      denom: `KSM` // hardcoded for now. Looking how to do a more complete query
+    }
+  ]
+}
+
 module.exports = {
   blockReducer,
-  validatorReducer
+  validatorReducer,
+  balanceReducer
 }
diff --git a/lib/source/polkadotV0-source.js b/lib/source/polkadotV0-source.js
index 97cdfaea3f..c903f3735c 100644
--- a/lib/source/polkadotV0-source.js
+++ b/lib/source/polkadotV0-source.js
@@ -1,37 +1,48 @@
-const { ApiPromise, WsProvider } = require('@polkadot/api')
 const BigNumber = require('bignumber.js')
 
 class polkadotAPI {
-  constructor(network) {
+  constructor(network, store) {
     this.network = network
     this.setReducers()
+    this.store = store
   }
 
   setReducers() {
     this.reducers = require('../reducers/polkadotV0-reducers')
   }
 
-  async getAPIPromise() {
-    return await ApiPromise.create({
-      provider: new WsProvider(this.network.rpc_url)
-    })
+  // rpc initialization is async so we always need to assume we need to wait for it to be initialized
+  async getAPI() {
+    const api = this.store.polkadotRPC
+    await api.isReady
+    return api
   }
 
-  async getBlockByHeight(blockHeight) {
-    const api = await this.getAPIPromise()
+  async getBlockHeight() {
+    const api = await this.getAPI()
+    const block = await api.rpc.chain.getBlock()
+    return JSON.parse(JSON.stringify(block.block.header.number))
+  }
 
-    const [blockHash, sessionIndex] = await Promise.all([
-      api.rpc.chain.getBlockHash(blockHeight),
+  async getBlockByHeight(blockHeight) {
+    const api = await this.getAPI()
+
+    // heavy nesting to provide optimal parallelization here
+    const [
+      [{ author }, blockEvents, blockHash],
+      sessionIndex
+    ] = await Promise.all([
+      api.rpc.chain.getBlockHash(blockHeight).then(async blockHash => {
+        const [{ author }, blockEvents] = await Promise.all([
+          api.derive.chain.getHeader(blockHash),
+          api.query.system.events.at(blockHash)
+        ])
+
+        return [{ author }, blockEvents, blockHash]
+      }),
       api.query.babe.epochIndex()
     ])
 
-    const [{ author }, blockEvents] = await Promise.all([
-      api.derive.chain.getHeader(blockHash),
-      api.query.system.events.at(blockHash)
-    ])
-
-    api.disconnect()
-
     return this.reducers.blockReducer(
       this.networkId,
       blockHeight,
@@ -99,7 +110,7 @@ class polkadotAPI {
   }
 
   async getAllValidators() {
-    const api = await this.getAPIPromise()
+    const api = await this.getAPI()
 
     // Fetch validator addresses for current session
     const validatorAddresses = await api.query.session.validators()
@@ -145,8 +156,6 @@ class polkadotAPI {
       }
     })
 
-    api.disconnect()
-
     return validators.map(validator =>
       this.reducers.validatorReducer(this.network, validator)
     )
@@ -156,6 +165,27 @@ class polkadotAPI {
   async getExpectedReturns() {
     return 0
   }
+
+  async getBalancesFromAddress(address) {
+    const api = await this.getAPI()
+    // the documentation points at api.query.system.account as the preferred query. Looking into it
+    const balance = await api.query.balances.freeBalance(address)
+    return this.reducers.balanceReducer(JSON.stringify(balance))
+  }
+
+  async getRewards(delegatorAddress) {
+    const api = await this.getAPI()
+    const rewards = api.derive.staking.stakerRewards(delegatorAddress)
+    // currently not working. It always returns []
+    console.log('REWARDS', rewards)
+    return rewards
+  }
+
+  async getOverview(delegatorAddress) {
+    const api = await this.getAPI()
+    const accountBalances = await api.query.staking.bonded(delegatorAddress) // or stashId?
+    console.log('ACCOUNT', JSON.stringify(accountBalances))
+  }
 }
 
 module.exports = polkadotAPI
diff --git a/yarn.lock b/yarn.lock
index ebcca297e5..1822fdced0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -128,6 +128,13 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
+"@babel/runtime@^7.8.4":
+  version "7.8.7"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.8.7.tgz#8fefce9802db54881ba59f90bb28719b4996324d"
+  integrity sha512-+AATMUFppJDw6aiR5NVPHqIQBlV/Pj8wY/EZH+lmvRdUo9xBaz/rF3alAwFJQavvKfeOlPE7oaaDHVbcySbCsg==
+  dependencies:
+    regenerator-runtime "^0.13.4"
+
 "@babel/template@^7.4.0", "@babel/template@^7.7.4":
   version "7.7.4"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.7.4.tgz#428a7d9eecffe27deac0a98e23bf8e3675d2a77b"
@@ -477,6 +484,149 @@
     "@types/istanbul-reports" "^1.1.1"
     "@types/yargs" "^13.0.0"
 
+"@polkadot/api-derive@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/api-derive/-/api-derive-1.5.1.tgz#2bc31c1943e8707d08854eae1b623b357d3bb118"
+  integrity sha512-KmN9UBZFv1v0Q0PMgHGgcZvEbgIYnnyj3mV7M0o7F/200VyvWCySaR+T7Tqu19zdGvQ7ocmQ6VnTw9E2cKqUrA==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/api" "1.5.1"
+    "@polkadot/rpc-core" "1.5.1"
+    "@polkadot/rpc-provider" "1.5.1"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
+    bn.js "^5.1.1"
+    memoizee "^0.4.14"
+    rxjs "^6.5.4"
+
+"@polkadot/api@1.5.1", "@polkadot/api@^1.4.2":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/api/-/api-1.5.1.tgz#2da9adddfa94fd693692239e717e307092767ffa"
+  integrity sha512-cvqasyk91/lPB2YXCrQApvrVm0E/8aQcl/AO2iVNJQ1L+pHzR6rnd+94iKMmWFCtRZj86qguR813xsKwJ/PgLg==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/api-derive" "1.5.1"
+    "@polkadot/keyring" "^2.6.1"
+    "@polkadot/metadata" "1.5.1"
+    "@polkadot/rpc-core" "1.5.1"
+    "@polkadot/rpc-provider" "1.5.1"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
+    bn.js "^5.1.1"
+    eventemitter3 "^4.0.0"
+    rxjs "^6.5.4"
+
+"@polkadot/jsonrpc@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/jsonrpc/-/jsonrpc-1.5.1.tgz#4259306678033be2dc4199e8baa0465946952c2b"
+  integrity sha512-Re9ibWzYXG44X05HyQPPHNXMurrOAxVwJaeSCjVJ3UN7DxXkXniIWohvupIoiRn0Ayp1/1QOK8YvEOjqxyqTMw==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+
+"@polkadot/keyring@^2.6.1":
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/keyring/-/keyring-2.6.1.tgz#dad4d2047ed94334aa509b404bf7d49374e219e6"
+  integrity sha512-h12f5tWfqzJUmXTnjQ5fVrfSIiZH2ToRdPwEn467yHpeCDPWNCnKN/qHHoYOFQi8TkALiQk03NZbLX4QgoNRFw==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/util" "2.6.1"
+    "@polkadot/util-crypto" "2.6.1"
+
+"@polkadot/metadata@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/metadata/-/metadata-1.5.1.tgz#4a859e73708f9ed1b627e155a7d7faea334fb805"
+  integrity sha512-Su7mdelNVn5fNUcM9qFlha6gayLoOnTjT7yWy21apt7bg11mrj5aiJ2J6YvKhnM+9xGpKYnTqAX2fFyDbPqiFg==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
+    bn.js "^5.1.1"
+
+"@polkadot/rpc-core@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/rpc-core/-/rpc-core-1.5.1.tgz#aa722e5b1348c1dd31899897a65c6a56f3695ad8"
+  integrity sha512-SE0cAcTeLvZxJHnD8+saiksyjoBhMGRcVB9BkDLPPKZJ1+xZfZ/SItHhXCtCgL1Ur3UUTbrdLHVLNgE6Tb11lg==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/jsonrpc" "1.5.1"
+    "@polkadot/metadata" "1.5.1"
+    "@polkadot/rpc-provider" "1.5.1"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    memoizee "^0.4.14"
+    rxjs "^6.5.4"
+
+"@polkadot/rpc-provider@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/rpc-provider/-/rpc-provider-1.5.1.tgz#48b463302f4ae153044e08fac79b9a75ffb370c4"
+  integrity sha512-w81LZbo0r0vEGu72YdiKYgC3zvtVPqkopASTu6pyr3GjltVHmdXRsogdEoogveYCaJvEG8ul2CW/gFROzr53EA==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/jsonrpc" "1.5.1"
+    "@polkadot/metadata" "1.5.1"
+    "@polkadot/types" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
+    bn.js "^5.1.1"
+    eventemitter3 "^4.0.0"
+    isomorphic-fetch "^2.2.1"
+    websocket "^1.0.31"
+
+"@polkadot/types@1.5.1":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/types/-/types-1.5.1.tgz#4e3acbd2e718536fad7e8874dfbf1957d4bb6fce"
+  integrity sha512-Iom607LqB7QT/+gPD1+n7lpq2fZ71Kfw1u7WASfrxGVO/K7LdzmC12rv1/hbsFP7vsiw8SKeEH16FIiU5/S5WA==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/metadata" "1.5.1"
+    "@polkadot/util" "^2.6.1"
+    "@polkadot/util-crypto" "^2.6.1"
+    "@types/bn.js" "^4.11.6"
+    bn.js "^5.1.1"
+    memoizee "^0.4.14"
+    rxjs "^6.5.4"
+
+"@polkadot/util-crypto@2.6.1", "@polkadot/util-crypto@^2.6.1":
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/util-crypto/-/util-crypto-2.6.1.tgz#d5982e08d79e5315eb0ca8105ee0580f2284e572"
+  integrity sha512-XYPWlmuilDl4Yo1p/toYUoEp583lt3iwKOb1haIyylUzzQPIhW0t+7ys1ZSarAhuSqhy+7jbi3+DX5b8K1lFBQ==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@polkadot/util" "2.6.1"
+    "@polkadot/wasm-crypto" "^1.2.1"
+    base-x "^3.0.8"
+    bip39 "^3.0.2"
+    blakejs "^1.1.0"
+    bn.js "^5.1.1"
+    bs58 "^4.0.1"
+    elliptic "^6.5.2"
+    js-sha3 "^0.8.0"
+    pbkdf2 "^3.0.17"
+    tweetnacl "^1.0.3"
+    xxhashjs "^0.2.2"
+
+"@polkadot/util@2.6.1", "@polkadot/util@^2.6.1":
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-2.6.1.tgz#1b8b1d76a87072ad1099319031d278756215ee43"
+  integrity sha512-iaTqsCH6EEFm1yHSxLGCi/cplZS1lNFcs6QEb+FNgP418nG55NW/j+acpUf94JfZ3MPRB4228ooh45drsaUqPQ==
+  dependencies:
+    "@babel/runtime" "^7.8.4"
+    "@types/bn.js" "^4.11.6"
+    bn.js "^5.1.1"
+    camelcase "^5.3.1"
+    chalk "^3.0.0"
+    ip-regex "^4.1.0"
+
+"@polkadot/wasm-crypto@^1.2.1":
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/wasm-crypto/-/wasm-crypto-1.2.1.tgz#2189702447acd28d763886359576c87562241767"
+  integrity sha512-nckIoZBV4nBZdeKwFwH5t7skS7L7GO5EFUl5B1F6uCjUfdNpDz3DtqbYQHcLdCZNmG4TDLg6w/1J+rkl2SiUZw==
+
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/@protobufjs/aspromise/-/aspromise-1.1.2.tgz#9b8b0cc663d669a7d8f6f5d0893a14d348f30fbf"
@@ -626,6 +776,13 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
+"@types/bn.js@^4.11.6":
+  version "4.11.6"
+  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
+  integrity sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/body-parser@*", "@types/body-parser@1.17.1":
   version "1.17.1"
   resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.17.1.tgz#18fcf61768fb5c30ccc508c21d6fd2e8b3bf7897"
@@ -634,6 +791,11 @@
     "@types/connect" "*"
     "@types/node" "*"
 
+"@types/color-name@^1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
+  integrity sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==
+
 "@types/connect@*":
   version "3.4.32"
   resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.32.tgz#aa0e9616b9435ccad02bc52b5b454ffc2c70ba28"
@@ -765,6 +927,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.12.tgz#529bc3e73dbb35dd9e90b0a1c83606a9d3264bdb"
   integrity sha512-MGuvYJrPU0HUwqF7LqvIj50RZUX23Z+m583KBygKYUZLlZ88n6w28XRNJRJgsHukLEnLz6w6SvxZoLgbr5wLqQ==
 
+"@types/node@11.11.6":
+  version "11.11.6"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.11.6.tgz#df929d1bb2eee5afdda598a41930fe50b43eaa6a"
+  integrity sha512-Exw4yUWMBXM3X+8oqzJNRqZSwUAaS4+7NdvHqQuFi/d+synz++xmX3QIf+BFqneW8N31R8Ky+sikfZUXq07ggQ==
+
 "@types/node@^10.1.0":
   version "10.17.5"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.5.tgz#c1920150f7b90708a7d0f3add12a06bc9123c055"
@@ -945,6 +1112,14 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@^4.1.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.2.1.tgz#90ae75c424d008d2624c5bf29ead3177ebfcf359"
+  integrity sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==
+  dependencies:
+    "@types/color-name" "^1.1.1"
+    color-convert "^2.0.1"
+
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
@@ -1327,6 +1502,13 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
+base-x@^3.0.2, base-x@^3.0.8:
+  version "3.0.8"
+  resolved "https://registry.yarnpkg.com/base-x/-/base-x-3.0.8.tgz#1e1106c2537f0162e8b52474a557ebb09000018d"
+  integrity sha512-Rl/1AWP4J/zRrk54hhlxH4drNxPJXYUaKffODVI53/dAsV4t9fBxyxYKAVPU1XBHxYwOWP9h9H0hM2MVw4YfJA==
+  dependencies:
+    safe-buffer "^5.0.1"
+
 base64-js@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.1.tgz#58ece8cb75dd07e71ed08c736abc5fac4dbf8df1"
@@ -1372,6 +1554,31 @@ binary-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.13.1.tgz#598afe54755b2868a5330d2aff9d4ebb53209b65"
   integrity sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==
 
+bip39@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/bip39/-/bip39-3.0.2.tgz#2baf42ff3071fc9ddd5103de92e8f80d9257ee32"
+  integrity sha512-J4E1r2N0tUylTKt07ibXvhpT2c5pyAFgvuA5q1H9uDy6dEGpjV8jmymh3MTYJDLCNbIVClSB9FbND49I6N24MQ==
+  dependencies:
+    "@types/node" "11.11.6"
+    create-hash "^1.1.0"
+    pbkdf2 "^3.0.9"
+    randombytes "^2.0.1"
+
+blakejs@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/blakejs/-/blakejs-1.1.0.tgz#69df92ef953aa88ca51a32df6ab1c54a155fc7a5"
+  integrity sha1-ad+S75U6qIylGjLfarHFShVfx6U=
+
+bn.js@^4.4.0:
+  version "4.11.8"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
+  integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
+
+bn.js@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.1.1.tgz#48efc4031a9c4041b9c99c6941d903463ab62eb5"
+  integrity sha512-IUTD/REb78Z2eodka1QZyyEk66pciRcP6Sroka0aI3tG/iwIdYLrBD62RsubR7vqdt3WyX8p4jxeatzmRSphtA==
+
 body-parser@1.19.0, body-parser@^1.18.3:
   version "1.19.0"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.0.tgz#96b2709e57c9c4e09a6fd66a8fd979844f69f08a"
@@ -1425,6 +1632,11 @@ braces@^2.3.1, braces@^2.3.2:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
+brorand@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
+  integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
+
 browser-process-hrtime@^0.1.2:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-0.1.3.tgz#616f00faef1df7ec1b5bf9cfe2bdc3170f26c7b4"
@@ -1437,6 +1649,13 @@ browser-resolve@^1.11.3:
   dependencies:
     resolve "1.1.7"
 
+bs58@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/bs58/-/bs58-4.0.1.tgz#be161e76c354f6f788ae4071f63f34e8c4f0a42a"
+  integrity sha1-vhYedsNU9veIrkBx9j806MTwpCo=
+  dependencies:
+    base-x "^3.0.2"
+
 bser@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/bser/-/bser-2.1.1.tgz#e6787da20ece9d07998533cfd9de6f5c38f4bc05"
@@ -1560,6 +1779,14 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.4.2:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
+chalk@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-3.0.0.tgz#3f73c2bf526591f574cc492c51e2456349f844e4"
+  integrity sha512-4D3B6Wf41KOYRFdszmDqMCGq5VV/uMAB273JILmO+3jAlh8X4qDtdtgCR3fxtbLEMzSx22QdhnDcJvu2u1fVwg==
+  dependencies:
+    ansi-styles "^4.1.0"
+    supports-color "^7.1.0"
+
 chardet@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
@@ -1604,6 +1831,14 @@ ci-info@^2.0.0:
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-2.0.0.tgz#67a9e964be31a51e15e5010d58e6f12834002f46"
   integrity sha512-5tK7EtrZ0N+OLFMthtqOj4fI2Jeb88C4CAZPu25LDVUgXJ0A3Js4PMGqrn0JU1W0Mh1/Z8wZzYPxqUrXeBboCQ==
 
+cipher-base@^1.0.1, cipher-base@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
+  integrity sha512-Kkht5ye6ZGmwv40uUDZztayT2ThLQGfnj/T71N/XzeZeo3nf8foyW7zGTsPYkEya3m5f3cAypH+qe7YOrM1U2Q==
+  dependencies:
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
 class-utils@^0.3.5:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
@@ -1670,11 +1905,23 @@ color-convert@^1.9.0:
   dependencies:
     color-name "1.1.3"
 
+color-convert@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
+  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
+  dependencies:
+    color-name "~1.1.4"
+
 color-name@1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
   integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
 
+color-name@~1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
+  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
+
 combined-stream@^1.0.6, combined-stream@~1.0.6:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
@@ -1822,6 +2069,29 @@ create-error-class@^3.0.0:
   dependencies:
     capture-stack-trace "^1.0.0"
 
+create-hash@^1.1.0, create-hash@^1.1.2:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
+  integrity sha512-z00bCGNHDG8mHAkP7CtT1qVu+bFQUPjYq/4Iv3C3kWjTFV10zIjfSoeqXo9Asws8gwSHDGj/hl2u4OGIjapeCg==
+  dependencies:
+    cipher-base "^1.0.1"
+    inherits "^2.0.1"
+    md5.js "^1.3.4"
+    ripemd160 "^2.0.1"
+    sha.js "^2.4.0"
+
+create-hmac@^1.1.4:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
+  integrity sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg==
+  dependencies:
+    cipher-base "^1.0.3"
+    create-hash "^1.1.0"
+    inherits "^2.0.1"
+    ripemd160 "^2.0.0"
+    safe-buffer "^5.0.1"
+    sha.js "^2.4.8"
+
 cross-env@^6.0.3:
   version "6.0.3"
   resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-6.0.3.tgz#4256b71e49b3a40637a0ce70768a6ef5c72ae941"
@@ -1880,6 +2150,19 @@ cssstyle@^1.0.0:
   dependencies:
     cssom "0.3.x"
 
+cuint@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/cuint/-/cuint-0.2.2.tgz#408086d409550c2631155619e9fa7bcadc3b991b"
+  integrity sha1-QICG1AlVDCYxFVYZ6fp7ytw7mRs=
+
+d@1, d@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
+  integrity sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==
+  dependencies:
+    es5-ext "^0.10.50"
+    type "^1.0.1"
+
 dashdash@^1.12.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
@@ -2132,6 +2415,19 @@ ee-first@1.1.1:
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
+elliptic@^6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
+  integrity sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==
+  dependencies:
+    bn.js "^4.4.0"
+    brorand "^1.0.1"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.0"
+
 emoji-regex@^7.0.1:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
@@ -2147,6 +2443,13 @@ encodeurl@~1.0.2:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  integrity sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=
+  dependencies:
+    iconv-lite "~0.4.13"
+
 end-of-stream@^1.0.0, end-of-stream@^1.1.0, end-of-stream@^1.4.1:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
@@ -2191,6 +2494,24 @@ es-to-primitive@^1.2.0:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
+es5-ext@^0.10.35, es5-ext@^0.10.45, es5-ext@^0.10.46, es5-ext@^0.10.50, es5-ext@~0.10.14, es5-ext@~0.10.2, es5-ext@~0.10.46:
+  version "0.10.53"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.53.tgz#93c5a3acfdbef275220ad72644ad02ee18368de1"
+  integrity sha512-Xs2Stw6NiNHWypzRTY1MtaG/uJlwCk8kH81920ma8mvN8Xq1gsfhZvpkImLQArw8AHnv8MT2I45J3c0R8slE+Q==
+  dependencies:
+    es6-iterator "~2.0.3"
+    es6-symbol "~3.1.3"
+    next-tick "~1.0.0"
+
+es6-iterator@^2.0.3, es6-iterator@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
+  integrity sha1-p96IkUGgWpSwhUQDstCg+/qY87c=
+  dependencies:
+    d "1"
+    es5-ext "^0.10.35"
+    es6-symbol "^3.1.1"
+
 es6-promise@^4.0.3:
   version "4.2.8"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
@@ -2203,6 +2524,24 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
+es6-symbol@^3.1.1, es6-symbol@~3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.3.tgz#bad5d3c1bcdac28269f4cb331e431c78ac705d18"
+  integrity sha512-NJ6Yn3FuDinBaBRWl/q5X/s4koRHBrgKAu+yGI6JCBeiu3qrcbJhwT2GeR/EXVfylRk8dpQVJoLEFhK+Mu31NA==
+  dependencies:
+    d "^1.0.1"
+    ext "^1.1.2"
+
+es6-weak-map@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.3.tgz#b6da1f16cc2cc0d9be43e6bdbfc5e7dfcdf31d53"
+  integrity sha512-p5um32HOTO1kP+w7PRnB+5lQ43Z6muuMuIMffvDN8ZB4GcnjLBV6zGStpbASIMk4DCAvEaamhe2zhyCb/QXXsA==
+  dependencies:
+    d "1"
+    es5-ext "^0.10.46"
+    es6-iterator "^2.0.3"
+    es6-symbol "^3.1.1"
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -2350,6 +2689,14 @@ etag@~1.8.1:
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
+event-emitter@^0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  integrity sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
 event-target-shim@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
@@ -2360,6 +2707,11 @@ eventemitter3@^3.1.0:
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
   integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
 
+eventemitter3@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.0.tgz#d65176163887ee59f386d64c82610b696a4a74eb"
+  integrity sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==
+
 exec-sh@^0.3.2:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/exec-sh/-/exec-sh-0.3.4.tgz#3a018ceb526cc6f6df2bb504b2bfe8e3a4934ec5"
@@ -2457,6 +2809,13 @@ express@^4.0.0, express@^4.17.1:
     utils-merge "1.0.1"
     vary "~1.1.2"
 
+ext@^1.1.2:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ext/-/ext-1.4.0.tgz#89ae7a07158f79d35517882904324077e4379244"
+  integrity sha512-Key5NIsUxdqKg3vIsdw9dSuXpPCQ297y6wBjL30edxwPgt2E44WcWBZey/ZvUc6sERLTxKdyCu4gZFmUbk1Q7A==
+  dependencies:
+    type "^2.0.0"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -3014,6 +3373,11 @@ has-flag@^3.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
   integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
 
+has-flag@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-4.0.0.tgz#944771fd9c81c81265c4d6941860da06bb59479b"
+  integrity sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==
+
 has-symbols@^1.0.0, has-symbols@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.1.tgz#9f5214758a44196c406d9bd76cebf81ec2dd31e8"
@@ -3062,6 +3426,14 @@ has@^1.0.1, has@^1.0.3:
   dependencies:
     function-bind "^1.1.1"
 
+hash-base@^3.0.0:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
+  integrity sha1-X8hoaEfs1zSZQDMZprCj8/auSRg=
+  dependencies:
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
 hash-stream-validation@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/hash-stream-validation/-/hash-stream-validation-0.2.2.tgz#6b34c4fce5e9fce265f1d3380900049d92a10090"
@@ -3069,6 +3441,23 @@ hash-stream-validation@^0.2.2:
   dependencies:
     through2 "^2.0.0"
 
+hash.js@^1.0.0, hash.js@^1.0.3:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
+  integrity sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==
+  dependencies:
+    inherits "^2.0.3"
+    minimalistic-assert "^1.0.1"
+
+hmac-drbg@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
+  integrity sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=
+  dependencies:
+    hash.js "^1.0.3"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.1"
+
 hosted-git-info@^2.1.4:
   version "2.8.5"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.5.tgz#759cfcf2c4d156ade59b0b2dfabddc42a6b9c70c"
@@ -3155,7 +3544,7 @@ husky@^3.0.9:
     run-node "^1.0.0"
     slash "^3.0.0"
 
-iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4:
+iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -3277,6 +3666,11 @@ ioredis@^4.0.0, ioredis@^4.6.3:
     redis-parser "^3.0.0"
     standard-as-callback "^2.0.1"
 
+ip-regex@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-4.1.0.tgz#5ad62f685a14edb421abebc2fff8db94df67b455"
+  integrity sha512-pKnZpbgCTfH/1NLIlOduP/V+WRXzC2MOz3Qo8xmxk8C5GudJLgK5QyLVXOSWy3ParAH7Eemurl3xjv/WXYFvMA==
+
 ipaddr.js@1.9.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.0.tgz#37df74e430a0e47550fe54a2defe30d8acd95f65"
@@ -3476,7 +3870,7 @@ is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   dependencies:
     isobject "^3.0.1"
 
-is-promise@^2.1.0:
+is-promise@^2.1, is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
   integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
@@ -3503,7 +3897,7 @@ is-stream-ended@^0.1.4:
   resolved "https://registry.yarnpkg.com/is-stream-ended/-/is-stream-ended-0.1.4.tgz#f50224e95e06bce0e356d440a4827cd35b267eda"
   integrity sha512-xj0XPvmr7bQFTvirqnFr50o0hQIh6ZItDqloxt5aJrR4NQsYeSsyFQERYGCAzfindAcnKjINnwEEgLx4IqVzQw==
 
-is-stream@^1.0.0, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
@@ -3562,6 +3956,14 @@ isobject@^3.0.0, isobject@^3.0.1:
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
   integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
 
+isomorphic-fetch@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
+  integrity sha1-YRrhrPFPXoH3KVB0coGf6XM1WKk=
+  dependencies:
+    node-fetch "^1.0.1"
+    whatwg-fetch ">=0.10.0"
+
 isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
@@ -3971,6 +4373,11 @@ jest@^24.9.0:
     import-local "^2.0.0"
     jest-cli "^24.9.0"
 
+js-sha3@^0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.8.0.tgz#b9b7a5da73afad7dedd0f8c463954cbde6818840"
+  integrity sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q==
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -4294,6 +4701,13 @@ lru-cache@^5.0.0:
   dependencies:
     yallist "^3.0.2"
 
+lru-queue@0.1:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/lru-queue/-/lru-queue-0.1.0.tgz#2738bd9f0d3cf4f84490c5736c48699ac632cda3"
+  integrity sha1-Jzi9nw089PhEkMVzbEhpmsYyzaM=
+  dependencies:
+    es5-ext "~0.10.2"
+
 lru_map@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/lru_map/-/lru_map-0.3.3.tgz#b5c8351b9464cbd750335a79650a0ec0e56118dd"
@@ -4340,11 +4754,34 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+md5.js@^1.3.4:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
+  integrity sha512-xitP+WxNPcTTOgnTJcrhM0xvdPepipPSf3I8EIpGKeFLjt3PlJLIDG3u8EX53ZIubkb+5U2+3rELYpEhHhzdkg==
+  dependencies:
+    hash-base "^3.0.0"
+    inherits "^2.0.1"
+    safe-buffer "^5.1.2"
+
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
+memoizee@^0.4.14:
+  version "0.4.14"
+  resolved "https://registry.yarnpkg.com/memoizee/-/memoizee-0.4.14.tgz#07a00f204699f9a95c2d9e77218271c7cd610d57"
+  integrity sha512-/SWFvWegAIYAO4NQMpcX+gcra0yEZu4OntmUdrBaWrJncxOqAziGFlHxc7yjKVK2uu3lpPW27P27wkR82wA8mg==
+  dependencies:
+    d "1"
+    es5-ext "^0.10.45"
+    es6-weak-map "^2.0.2"
+    event-emitter "^0.3.5"
+    is-promise "^2.1"
+    lru-queue "0.1"
+    next-tick "1"
+    timers-ext "^0.1.5"
+
 merge-descriptors@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
@@ -4406,6 +4843,16 @@ mimic-fn@^2.1.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
   integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
 
+minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
+  integrity sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==
+
+minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
+  integrity sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=
+
 minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
@@ -4524,6 +4971,16 @@ neo-async@^2.6.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
   integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
 
+next-tick@1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.1.0.tgz#1836ee30ad56d67ef281b22bd199f709449b35eb"
+  integrity sha512-CXdUiJembsNjuToQvxayPZF9Vqht7hewsvy2sOWafLvi2awflj9mOC6bHIg50orX8IJvWKY9wYQ/zB2kogPslQ==
+
+next-tick@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
+  integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
+
 nice-try@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
@@ -4541,6 +4998,14 @@ nock@^11.7.0:
     mkdirp "^0.5.0"
     propagate "^2.0.0"
 
+node-fetch@^1.0.1:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
+  integrity sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
 node-fetch@^2.1.2, node-fetch@^2.2.0, node-fetch@^2.3.0, node-fetch@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
@@ -4961,6 +5426,17 @@ pathval@^1.1.0:
   resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
   integrity sha1-uULm1L3mUwBe9rcTYd74cn0GReA=
 
+pbkdf2@^3.0.17, pbkdf2@^3.0.9:
+  version "3.0.17"
+  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.17.tgz#976c206530617b14ebb32114239f7b09336e93a6"
+  integrity sha512-U/il5MsrZp7mGg3mSQfn742na2T+1/vHDCG5/iTI3X9MKUuYUZVLQhyRsg06mCgDBTd57TxzgZt7P+fYfjRLtA==
+  dependencies:
+    create-hash "^1.1.2"
+    create-hmac "^1.1.4"
+    ripemd160 "^2.0.1"
+    safe-buffer "^5.0.1"
+    sha.js "^2.4.8"
+
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -5153,6 +5629,13 @@ qs@~6.5.2:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
+randombytes@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.1.0.tgz#df6f84372f0270dc65cdf6291349ab7a473d4f2a"
+  integrity sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==
+  dependencies:
+    safe-buffer "^5.1.0"
+
 range-parser@~1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
@@ -5275,6 +5758,11 @@ redis-parser@^3.0.0:
   dependencies:
     redis-errors "^1.0.0"
 
+regenerator-runtime@^0.13.4:
+  version "0.13.4"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.4.tgz#e96bf612a3362d12bb69f7e8f74ffeab25c7ac91"
+  integrity sha512-plpwicqEzfEyTQohIKktWigcLzmNStMGwbOUbykx51/29Z3JOGYldaaNGK7ngNXV+UcoqvIMmloZ48Sr74sd+g==
+
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
@@ -5451,6 +5939,14 @@ rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.3:
   dependencies:
     glob "^7.1.3"
 
+ripemd160@^2.0.0, ripemd160@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.2.tgz#a1c1a6f624751577ba5d07914cbc92850585890c"
+  integrity sha512-ii4iagi25WusVoiC4B4lq7pbXfAp3D9v5CwfkY33vffw2+pkDjY1D8GaN7spsxvCSx8dkPqOZCEZyfxcmJG2IA==
+  dependencies:
+    hash-base "^3.0.0"
+    inherits "^2.0.1"
+
 rsvp@^4.8.4:
   version "4.8.5"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-4.8.5.tgz#c8f155311d167f68f21e168df71ec5b083113734"
@@ -5475,12 +5971,19 @@ rxjs@^6.4.0:
   dependencies:
     tslib "^1.9.0"
 
+rxjs@^6.5.4:
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.5.4.tgz#e0777fe0d184cec7872df147f303572d414e211c"
+  integrity sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==
+  dependencies:
+    tslib "^1.9.0"
+
 safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
-safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.2, safe-buffer@~5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
   integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
@@ -5588,7 +6091,7 @@ setprototypeof@1.1.1:
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.1.tgz#7e95acb24aa92f5885e0abef5ba131330d4ae683"
   integrity sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==
 
-sha.js@^2.4.11:
+sha.js@^2.4.0, sha.js@^2.4.11, sha.js@^2.4.8:
   version "2.4.11"
   resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
   integrity sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==
@@ -6045,6 +6548,13 @@ supports-color@^6.1.0:
   dependencies:
     has-flag "^3.0.0"
 
+supports-color@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-7.1.0.tgz#68e32591df73e25ad1c4b49108a2ec507962bfd1"
+  integrity sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==
+  dependencies:
+    has-flag "^4.0.0"
+
 symbol-observable@^1.0.4:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
@@ -6141,6 +6651,14 @@ timed-out@^4.0.0:
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
   integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
 
+timers-ext@^0.1.5:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/timers-ext/-/timers-ext-0.1.7.tgz#6f57ad8578e07a3fb9f91d9387d65647555e25c6"
+  integrity sha512-b85NUNzTSdodShTIbky6ZF02e8STtVVfD+fu4aXXShEELpozH+bCpJLYMPZbsABN2wDH7fJpqIoXxJpzbf0NqQ==
+  dependencies:
+    es5-ext "~0.10.46"
+    next-tick "1"
+
 tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
@@ -6242,6 +6760,11 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
+tweetnacl@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
+  integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -6272,6 +6795,16 @@ type-is@^1.6.16, type-is@~1.6.17, type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
+type@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/type/-/type-1.2.0.tgz#848dd7698dafa3e54a6c479e759c4bc3f18847a0"
+  integrity sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg==
+
+type@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/type/-/type-2.0.0.tgz#5f16ff6ef2eb44f260494dae271033b29c09a9c3"
+  integrity sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow==
+
 typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
@@ -6484,6 +7017,17 @@ websocket@^1.0.30:
     typedarray-to-buffer "^3.1.5"
     yaeti "^0.0.6"
 
+websocket@^1.0.31:
+  version "1.0.31"
+  resolved "https://registry.yarnpkg.com/websocket/-/websocket-1.0.31.tgz#e5d0f16c3340ed87670e489ecae6144c79358730"
+  integrity sha512-VAouplvGKPiKFDTeCCO65vYHsyay8DqoBSlzIO3fayrfOgU94lQN5a1uWVnFrMLceTJw/+fQXR5PGbUVRaHshQ==
+  dependencies:
+    debug "^2.2.0"
+    es5-ext "^0.10.50"
+    nan "^2.14.0"
+    typedarray-to-buffer "^3.1.5"
+    yaeti "^0.0.6"
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
@@ -6491,6 +7035,11 @@ whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   dependencies:
     iconv-lite "0.4.24"
 
+whatwg-fetch@>=0.10.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz#fc804e458cc460009b1a2b966bc8817d2578aefb"
+  integrity sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q==
+
 whatwg-mimetype@^2.1.0, whatwg-mimetype@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz#3d4b1e0312d2079879f826aff18dbeeca5960fbf"
@@ -6640,6 +7189,13 @@ xtend@^4.0.1, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
+xxhashjs@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/xxhashjs/-/xxhashjs-0.2.2.tgz#8a6251567621a1c46a5ae204da0249c7f8caa9d8"
+  integrity sha512-AkTuIuVTET12tpsVIQo+ZU6f/qDmKuRUcjaqR+OIvm+aCBsZ95i7UVY5WJ9TMsSaZ0DA2WxoZ4acu0sPH+OKAw==
+  dependencies:
+    cuint "^0.2.2"
+
 y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"