[feature request] Instruction-level queries

[0x009922]

Use case

In Explorer we need to display history not only in terms of blocks/transactions, but in terms of specific instructions (atomic operations) too: registers, mints, burns, transfers, grants, revokes etc.

Desired solution

• Introduce a new query, e.g. FindInstructions
• Filter by instruction kind (Register, Mint, Transfer etc)
• Filter by transaction hash
• Filter by transaction authority (account id)
• Sort from latest to oldest
• Attach to each instruction a hash of the transaction containing it
• Reconsider FindTransactions: allow fetch only shallow data of transactions, without "executable" - the list of ISIs in a single transaction could sometimes be vast; loading of WASM might not be needed at all.

[mversic]

This is unlikely to happen, at least not any time soon. This would be a black hole for memory consumption so it needs to be considered very carefully.

If we decide to do this, then for this feature to be useful and work correctly, we need to make sure that we also log every instruction that is executed from a smart contract, trigger or executor (it can modify existing or execute additional ISI)

[mversic]

is there an example of other blockchain explorers providing this feature?

[0x009922]

is there an example of other blockchain explorers providing this feature?

I think other blockchains tend to work in terms of transactions as units of mutation. In Iroha it is a single unit too, but it can consist of multiple actual operations. So the question is: do users need to query for specific operations? (I don't have a definitive answer)