Documentation

websocket module

A long-lived socket for text or binary frames. Events reach the node's on_websocket_event (or on_event) as a map with socket and kind: open, message…

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Functions
Constants

A long-lived socket for text or binary frames. Events reach the node's on_websocket_event (or on_event) as a map with socket and kind: open, message, binary, closed or error, each an EVENT_* constant. An error carries its reason, and the HTTP status when a server refused the upgrade.

4 functions, 9 constants. Scripts reach it as websocket::.

Functions

Argument kinds are the script values a call passes: node is a node handle, any a table or value of any kind, fn a callback.

function	acts on	what it does
`close(int) -> any`	—	Ask the connection to close, which still delivers a `closed` event with its `code`; false when it was already gone.
`connect(any, string, any?) -> any`	—	Open a connection and return the id `send` and `close` take, which `task.wait` resumes on with the `open` or `error` event; options are `on_event`, `compression` and `headers`.
`send(int, any) -> any`	—	Queue a frame on the connection, text for a string and binary for bytes; false when it is already gone.
`state(int) -> any`	—	Where the connection is: `connecting`, `open`, `closing` or `closed`, each a `STATE_*` constant.

Constants

name	value
`EVENT_BINARY`	`binary`
`EVENT_CLOSED`	`closed`
`EVENT_ERROR`	`error`
`EVENT_MESSAGE`	`message`
`EVENT_OPEN`	`open`
`STATE_CLOSED`	`closed`
`STATE_CLOSING`	`closing`
`STATE_CONNECTING`	`connecting`
`STATE_OPEN`	`open`