Client Frames

The five frame types a client sends: authorization, request, channel request, channel response, and channel response finish.

A client sends five frame types.

• Type 0 — authorization. The scope and channel fields are ignored. The payload is a credential. Sent only when the client is the connection’s initiator, only as the connection’s first frame — see Authorization.
• Type 1 — request. Opens a scope. The scope field carries a number of the client’s choosing; the channel field is ignored. The payload is the request.
• Type 4 — channel request. Opens a channel within an existing scope. The scope field names that scope; the channel field carries a number of the client’s choosing. The payload is the channel’s one request.
• Type 5 — channel response. Answers a channel the server opened. The channel field quotes the server’s channel number. The payload is one piece of the answer.
• Type 6 — channel response finish. Ends a channel the server opened, quoting its number. It carries no payload, and it is the only way such a channel ends.