alternate-pull-flow

sequenceDiagram

participant Requestor participant ReqDT as Data Transfer Module (Requestor) participant ReqSC as Scheduler (Requestor) participant ReqGS as Graphsync (Requestor) participant ResGS as Graphsync (Responder) participant ResSC as Scheduler (Responder) participant ResDT as Data Transfer Module (Responder) participant Responder

Note over Requestor,ReqGS: One System. Likely A Client Note over ResGS,Responder: One System. Likely A Miner

Requestor ->> ReqDT : Initiate Pull ReqDT ->> ReqSC : Schedule Transfer ReqSC ->> ReqGS : Make Graphsync Request w/ Data Transfer Request Piggy Backed ReqGS ->> ResGS : Send Graphsync Request (w/ Data Transfer Request) ResGS ->> ResDT : Verify Request (validate & schedule) ResDT ->> Responder : Validate Pull Request Responder ->> ResDT : Pull Request validated ResDT ->> ResSC : Schedule Transfer ResSC ->> ResGS : Send response w/ DTR Accepted Piggy Backed ResGS ->> ReqGS : Send response w/ DTR Accepted Piggy Backed ReqGS ->> ReqSC : Response Progress (to end) (include DT Accepted) ReqSC ->> ReqDT : Request Complete ReqDT ->> Requestor : Request Completed (if listening)