paritytech / paritytech/json-rpc-interface-spec

RPC to subscribe storage prefix

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Description

Previous issue https://github.com/paritytech/substrate/issues/5790

I would like to subscribe by key prefix. This will allow me to subscribe new entries in map / double map.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading this issue and the referenced previous issue, paritytech/substrate#5790, to understand the existing subscription behavior and prior discussion. Done means defining and implementing an RPC that subscribes to new entries matching a storage key prefix for maps and double maps.

Written by the indexing model from the issue text.

Assessment

Domain
api, database
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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