Instant vs Batch Payment Request Differences#
Instant Payment (exact) vs Batch Payment (aggr_deferred) Request Differences#
| Field | exact | aggr_deferred |
|---|---|---|
accepted.scheme | "exact" | "aggr_deferred" |
accepted.extra.sessionCert | None | Required: session key certificate (base64) |
payload.signature | EOA signature | session key signature |
syncSettle (settle endpoint) | Optional, defaults to false | Not applicable |
settle response transaction | txHash | Empty string |
TIP
sessionCert flow: Buyer includes it in accepted.extra.sessionCert → Seller passes it through as-is → Facilitator extracts it internally for TEE signature verification and signature conversion. Seller does not need to parse this field.