Retrieval Provider (Miner) #

Provider Dependencies #

The Retrieval Provider Depends On The Following Dependencies

Host: A libp2p host (set setup the libp2p protocols)
Filecoin Node: A node implementation to query the chain for pieces and to setup and manage payment channels
StorageMining Subsystem: For unsealing sectors
BlockStore: Same as one used by data transfer module
Data Transfer: V1 only – Module used for transferring payload. Reads from the blockstore.

API #

import abi "github.com/filecoin-project/specs-actors/actors/abi"
import peer "github.com/libp2p/go-libp2p-core/peer"

type RetrievalProviderDealState struct {
    RetrievalDealProposal
    Status                 DealStatus
    Receiver               peer.ID
    TotalSent              UInt
    FundsReceived          abi.TokenAmount
}

type RetrievalProviderEvent struct {
    Open
    Progress
    Error
    Complete
}

type RetrievalProviderDealID struct {
    From  peer.ID
    ID    RetrievalDealID
}

type RetrievalProviderSubscriber struct {
    OnEvent(event RetrievalProviderEvent, RetrievalProviderDealState)
}

type RetrievalProvider struct {
    // V0
    SetPricePerByte(price abi.TokenAmount)
    SetPaymentInterval(paymentInterval UInt, paymentIntervalIncrease UInt)
    SubscribeToEvents(subscriber RetrievalProviderSubscriber)

    // V1
    SetPricePerUnseal(price abi.TokenAmount)
    ListDeals() {RetrievalProviderDealID: RetrievalProviderDealState}
}