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Simplify trait bounds in network to prepare for collator-rpc #12082
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skunert
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koute
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Fyi ipfs clients don't seem to receive responses from substate bitswap anymore after this PR... Edit: Or rather this PR #12242 finishing the job |
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…ech#12082) * Hack towards PoC * Abstract away runtime requirement * blockchainevents * Remove bitswap * Remove unused sync more * Remove unused features in network * Re-enable bitswap change * Remove `Chain` trait bound * Reimplement blockchain-rpc-events * Move network to cumulus * Make AuthorityDiscovery async * Remove `ProofProvider` requirement from network behaviour * Extract bitswap * Adjustments after merge * Remove HeaderMetadata trait from network * Introduce NetworkHeaderBackend * Add comments * Improve comments * Move NetworkHeaderBackend to new module * Improve naming, remove redundand send + sync * Clean up generics * Fix CI * Improve comment and readability * Remove NetworkHeaderBackend * Fix Cargo.lock Co-authored-by: Sebastian Kunert <[email protected]>
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This is a preparation PR for paritytech/cumulus#989.
Why is this needed?
We will introduce a minimal relay chain node in cumulus, which only runs a subset
of all Polkadot subsystems and also only required network functionality.
This minimal node will connect to the relay chain via RPC and fetch the required information.
This PR refactors some issues in substrate to make implementing this RPC client easier, behaviour should not change.
Change Summary
I try to remove as many bounds as possible from the client instance that goes into the network.
ProofProviderwas already unused since the sync refactoringHeaderMetadatawas already unused since the sync refactoringBlockBackendis used in theBitswapprotocol. The protocol was already optional but required theBlockBackendbound. I introduce new abstractions, and Bitswap can now be passed into the network via parameters.NetworkHeaderBackendthat accepts onlyHashinstead ofBlockId, which resembles our RPC interface more