Interface FeedMessage

One frame from the sequencer feed, decoded.

interface FeedMessage {
    kind: number;
    l1BlockNumber: number;
    l2MsgBase64: string;
    sender: `0x${string}`;
    sequenceNumber: number;
    timestamp: number;
    transactions: DecodedFeedTransaction[];
}

Properties

kind: number

L1 message kind from the Nitro header (3 = L2Message, the common case).

l1BlockNumber: number

L1 block number stamped in the header.

l2MsgBase64: string

Raw base64 l2Msg payload.

sender: `0x${string}`

Header sender (the sequencer for kind-3 messages).

sequenceNumber: number

timestamp: number

Header timestamp (seconds).

Transactions decoded out of the payload (empty for non-transaction kinds or unparseable payloads — never throws).