feat(parachain/availability-distribution): handle PoVFetchingRequest
#4488
Labels
C-simple
Minor changes changes, no additional research needed. Good first issue/review.
S-subsystems-availability
issues related to polkadot host availability subsystem functionality.
T-implementation
this issue/pr is a new feature or functionality.
Issue summary
This is a network message received from other validators. The node responds with a PoV from the local availability store.
Implementation details
When receiving a request, send
availabilitystore.QueryAvailableData
to the availability store via the overseer, passing the candidate hash from the request. Receive the response from the channel included inQueryAvailableData
, construct aPoVFetchingResponse
from it and send it to the requesting peer.The implementation depends on support for receiving requests of request/response network protocols being implemented. This is tracked in #4453.
Other information and links
parachain.PoVFetchingRequest
Acceptance criteria
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