How can miner view startEpoch of deals?

[jburnett]

Clients set startEpoch (24 hrs by default?) on storage deals. Are miners able to discover this value?

Miners need to see the value due to cases in which startEpoch will occur before miner can complete sealing. If transfer is delayed, for example, the miner needs to be able to determine whether it is worth continuing with the deal. Once curr epoch + miner's seal time > startEpoch, there's no way for miner to succeed.

[f8-ptrk]

the proposal the client sends to the miner includes the start epoch - obviously

if you call the external deal filter program - this is what get passed to it:

{
    "Proposal": {
      "PieceCID": {
        "/": "baga6ea4sdfsdfsdfsdfsdfsdfnj4qcwwp5jc6gq"
      },
      "PieceSize": 2147483648,
      "VerifiedDeal": false,
      "Client": "f3sdfsdfsdfsdfsdfsdfsdfsdfsdfsdfrpcdmi3urbg36a",
      "Provider": "f099",
      "Label": "Qmsdfsdfsdfsdfsdfsdfsdf9jvKj",
      "StartEpoch": 719986,
      "EndEpoch": 1719986,
      "StoragePricePerEpoch": "46000000000",
      "ProviderCollateral": "567539176515439",
      "ClientCollateral": "0"
    },
    "ClientSignature": {
      "Type": 2,
      "Data": "jB8237sdfsdfsdfsfsdfsdfbZZxl"
    },
    "ProposalCid": {
      "/": "bafddddddddddddddddddddumx3jmohfup754"
    },
    "AddFundsCid": null,
    "PublishCid": null,
    "Miner": "12ffffffffffffffffffffffffffff3",
    "Client": "12bbbbbbbbbbbbbbbbbbbqHYBjw",
    "State": 15,
    "PiecePath": "",
    "MetadataPath": "",
    "SlashEpoch": 0,
    "FastRetrieval": true,
    "Message": "",
    "StoreID": 127,
    "FundsReserved": "0",
    "Ref": {
      "TransferType": "graphsync",
      "Root": {
        "/": "QmyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyjvKj"
      },
      "PieceCid": null,
      "PieceSize": 0,
      "RawBlockSize": 0
    },
    "AvailableForRetrieval": false,
    "DealID": 0,
    "CreationTime": "2021-99-29T34:573:23666.92366666544946Z",
    "TransferChannelId": null,
    "SectorNumber": 0,
    "DealType": "storage"
}

[jburnett]

Thanks for this answer - just what we're looking for. What do you mean by "external deal filter program?" A lotus-shed command?

[f8-ptrk]

#Filter = ""
#RetrievalFilter = ""

excerpt miner config.toml

https://docs.filecoin.io/mine/lotus/miner-configuration/#using-filters-for-fine-grained-storage-and-retrieval-deal-acceptance check this. thats where the data gets passed

[jburnett]

Thanks again!

[f8-ptrk]

if you are in the filecoin slack and have a second - ping me, Patrick -Factor8 Solutions

i would like to hear what external logic you are looking for and how you plan to implement it