text(+Text)

Send a text message. Text is serialized using write/1.

binary(+Content)

As text(+Text), but all character codes produced by Content must be in the range [0..255]. Typically, Content will be an atom or string holding binary data.

prolog(+Term)

Send a Prolog term as a text message. Text is serialized using write_canonical/1.

json(+JSON)

Send the Prolog representation of a JSON term using json_write_dict/2.

string(+Text)

Same as text(+Text), provided for consistency.

close(+Code, +Text)

Send a close message. Code is 1000 for normal close. See websocket documentation for other values.

Dict

A dict that minimally contains an opcode key. Other keys used are:

format:Format

Serialization format used for Message.data. Format is one of string, prolog or json. See ws_receive/3.

data:Term

If this key is present, it is serialized according to Message.format. Otherwise it is serialized using write/1, which implies that string and atoms are just sent verbatim.

Note that ws_start_message/3 does not unlock the stream. This is done by ws_send/1. This implies that multiple threads can use ws_send/2 and the messages are properly serialized.

To be done

Provide serialization details using options.