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Muharem 5ce04514eb pallet-asset-conversion: Swap Credit (#1677 )

Introduces a swap implementation that allows the exchange of a credit
(aka Negative Imbalance) of one asset for a credit of another asset.

This is particularly useful when a credit swap is required but may not
have sufficient value to meet the ED constraint, hence cannot be
deposited to temp account before. An example use case is when XCM fees
are paid using an asset held in the XCM executor registry and has to be
swapped for native currency.

Additional Updates:
- encapsulates the existing `Swap` trait impl within a transactional
context, since partial storage mutation is possible when an error
occurs;
- supplied `Currency` and `Assets` impls must be implemented over the
same `Balance` type, the `AssetBalance` generic type is dropped. This
helps to avoid numerous type conversion and overflow cases. If those
types are different it should be handled outside of the pallet;
- `Box` asset kind on a pallet level, unbox on a runtime level - here
[why](https://substrate.stackexchange.com/questions/10039/boxed-argument-of-a-dispatchable/10103#10103);
- `path` uses `Vec` now, instead of `BoundedVec` since it is never used
in PoV;
- removes the `Transfer` event due to it's redundancy with the events
emitted by `fungible/s` implementations;
- modifies the `SwapExecuted` event type;

related issue: 
- https://github.com/paritytech/polkadot-sdk/issues/105

related PRs:
- (required for) https://github.com/paritytech/polkadot-sdk/pull/1845
- (caused) https://github.com/paritytech/polkadot-sdk/pull/1717

// DONE make the pallet work only with `fungibles` trait and make it
free from the concept of a `native` asset -
https://github.com/paritytech/polkadot-sdk/issues/1842

---------

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>

2023-12-19 18:31:18 +02:00

asset-conversion-tx-payment

pallet-asset-conversion: Swap Credit (#1677 )

2023-12-19 18:31:18 +02:00

asset-tx-payment

Set clippy lints in workspace (requires rust 1.74) (#2390 )

2023-12-13 15:11:07 +01:00

rpc

Set clippy lints in workspace (requires rust 1.74) (#2390 )

2023-12-13 15:11:07 +01:00

skip-feeless-payment

Set clippy lints in workspace (requires rust 1.74) (#2390 )

2023-12-13 15:11:07 +01:00

src

Moves all test runtimes to use derive_impl (#2409 )

2023-11-28 14:13:57 +01:00

Cargo.toml

Set clippy lints in workspace (requires rust 1.74) (#2390 )

2023-12-13 15:11:07 +01:00

README.md

Migrate pallet-transaction-payment to new pallet attribute macro (#9087 )

2021-06-25 03:23:36 +00:00

README.md

Transaction Payment Pallet

This pallet provides the basic logic needed to pay the absolute minimum amount needed for a transaction to be included. This includes:

weight fee: A fee proportional to amount of weight a transaction consumes.
length fee: A fee proportional to the encoded length of the transaction.
tip: An optional tip. Tip increases the priority of the transaction, giving it a higher chance to be included by the transaction queue.

Additionally, this pallet allows one to configure:

The mapping between one unit of weight to one unit of fee via [Config::WeightToFee].
A means of updating the fee for the next block, via defining a multiplier, based on the final state of the chain at the end of the previous block. This can be configured via [Config::FeeMultiplierUpdate]

License: Apache-2.0