* +-----------+ * +----+IN_PROGRESS+----------------+ * | +-----+-----+ | * | | | * | v v * | +------------+ +---------+ * | |RESULT_READY+---------->|TIMED_OUT| * | +------+-----+ +---------+ * | | ^ * | v | * | +---------+ | * +---->|FINALIZED|-----------------+ * +---------+ * * \ / * | * v * +---------+ * |CONFIRMED| * +---------+ */.

internal request ID is a hash of (sender, requestID).

CONFIRMED state indicates that we received an on-chain confirmation event (with or without this node's participation in an earlier OCR round).

FINALIZED request is a part of a report produced by OCR2 and has now entered the transmission protocol (i.e.

IN_PROGRESS is the initial state of a request, set right after receiving it in an on-chain event.

caused by internal infra problems, potentially retryable.

Used in place of OnchainMetadata for all offchain requests.

RESULT_READY means that computation has finished executing (with either success or user error).

TIMED_OUT request has been waiting to get confirmed on chain for too long.

caused by user's code (exception, crash, timeout, ...).

NOTE: to be extended with raw report and signatures when needed.

ExternalAdapterClient supports two endpoints: 1.

Simple wrapper around a channel to transmit offchain reports between OCR plugin and Gateway connector.