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Clean up the asset-tx-payment Pallet #657

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Oct 19, 2021
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Clean up the asset-tx-payment Pallet #657

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eb3ca37
move dev-deps into correct section
apopiak Oct 13, 2021
4edf7ed
generate Readme.md
apopiak Oct 13, 2021
77b71e2
Update pallets/asset-tx-payment/README.md
apopiak Oct 14, 2021
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5 changes: 3 additions & 2 deletions pallets/asset-tx-payment/Cargo.toml
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Expand Up @@ -16,8 +16,6 @@ targets = ["x86_64-unknown-linux-gnu"]
# Substrate dependencies
frame-support = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
frame-system = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
pallet-assets = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
pallet-authorship = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
pallet-transaction-payment = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
sp-io = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
Expand All @@ -32,6 +30,9 @@ serde = { version = "1.0.101", optional = true }
[dev-dependencies]
smallvec = "1.4.1"
serde_json = "1.0.41"

pallet-assets = { git = "https://github.com/paritytech/substrate", branch = "master" }
pallet-authorship = { git = "https://github.com/paritytech/substrate", branch = "master" }
pallet-balances = { git = "https://github.com/paritytech/substrate", branch = "master" }
sp-storage = { git = "https://github.com/paritytech/substrate", branch = "master" }

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21 changes: 21 additions & 0 deletions pallets/asset-tx-payment/README.md
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@@ -0,0 +1,21 @@
# pallet-asset-tx-payment

## Asset Transaction Payment Pallet

This pallet allows runtimes that include it to pay for transactions in assets other than the
native token of the chain.

### Overview
It does this by extending transactions to include an optional `AssetId` that specifies the asset
to be used for payment (defaulting to the native token on `None`). It expects an
[`OnChargeAssetTransaction`] implementation analogously to [`pallet-transaction-payment`]. The
included [`FungiblesAdapter`] (implementing [`OnChargeAssetTransaction`]) determines the fee
amount by converting the fee calculated by [`pallet-transaction-payment`] into the desired
asset.

### Integration
This pallet wraps FRAME's transaction payment pallet and functions as a replacement. This means
you should include both pallets in your `construct_runtime` macro, but only include this
pallet's [`SignedExtension`] ([`ChargeAssetTxPayment`]).

License: Apache-2.0