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Looking to write a call that could return all the contract addresses of ink contracts matching a code hash of the contract via RPC.

What would be the best way to go about getting the list of contract instances matching the hash?

Thanks.

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  • What types of contracts? I presume ink using the contracts pallet or evm & frontier, but please update your question to be more explicit?
    – Nuke ♦
    Sep 17, 2022 at 2:31
  • You're correct, they are ink contracts.
    – Metallurgical
    Sep 17, 2022 at 4:12

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The pallet_contracts has the storage ContractInfoOf (see in the code) which is a mapping of the contract info (that includes the code hash) associated with a given account.

You can query all the elements stored here and get all the account Ids that matches your hash code.

An example of the query using PolkadotJS UI:

enter image description here

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