paritytech / polkadot-sdk

The Parity Polkadot Blockchain SDK
https://polkadot.com/
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Asset Hub: auto incremented asset id for trust backed assets #5687

Closed muharem closed 2 months ago

muharem commented 2 months ago

Setup auto incremented asset id to 50_000_000 for trust backed assets.

In order to align with Polkadot/Kusama Asset Hub - https://github.com/polkadot-fellows/runtimes/pull/414 The next closes existing assets IDs in Rococo is 69_696_969, in Westend is 88_228_866.

Migration

Stakeholders: all clients providing asset creation functionality on Westend/Rococo Asset Hub

This change does not break the API but introduces a new constraint. It implements an auto-incremented ID strategy for Trust-Backed Assets (50 pallet instance indexes on both networks), starting at ID 50,000,000. Each new asset must be created with an ID that is one greater than the last asset created. The next ID can be fetched from the NextAssetId storage item of the assets pallet. An empty NextAssetId storage item indicates no constraint on the next asset ID and can serve as a feature flag for this release.