chainHead_storage: Backport queries for value types - Githubissues

paritytech / substrate

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chainHead_storage: Backport queries for value types #14551

Closed lexnv closed 1 year ago

lexnv commented 1 year ago

This PR backports the following RPC V2 spec changes for chainHead_storage:

Add a new Storage event since the ChainHeadEvent::Done has diverged
Test serialization/deserialization for both the added events and input parameters to the method
Allow users to fetch initially the value similarly as before
Adjust testing to reflect the new API

Closes: https://github.com/paritytech/substrate/issues/14547

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