13 major breaking releases

13.0.0 Sep 26, 2024
12.0.0 Jul 18, 2024
11.0.0 Jul 12, 2024
10.0.0 Jun 21, 2024
0.0.0 Nov 14, 2023

#14 in #skip

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427 downloads per month
Used in polkadot-sdk

GPL-3.0-only

2MB
35K SLoC

Release

Polkadot SDK stable2409


lib.rs:

Skip Feeless Payment Pallet

This pallet allows runtimes that include it to skip payment of transaction fees for dispatchables marked by #[pallet::feeless_if].

Overview

It does this by wrapping an existing SignedExtension implementation (e.g. pallet-transaction-payment) and checking if the dispatchable is feeless before applying the wrapped extension. If the dispatchable is indeed feeless, the extension is skipped and a custom event is emitted instead. Otherwise, the extension is applied as usual.

Integration

This pallet wraps an existing transaction payment pallet. This means you should both pallets in your construct_runtime macro and include this pallet's SignedExtension (SkipCheckIfFeeless) that would accept the existing one as an argument.

Dependencies

~18–32MB
~538K SLoC