**************************************************************************** * Storage schema ***************************************************************************** * System-accessible tables: *************************** * 1.

4xx Errors.

3xx.

Terminate session after this timeout.

12 hours.

1 week.

Tear down topic after this period of silence.

API version.

Combined message.

User creation message {acc}.

MsgClientDel delete messages or topic.

Query topic state {get}.

Unsubscribe {leave} request message.

Login {login} message.

MsgClientPub is client's request to publish data to topic subscribers {pub}.

Update topic state {set}.

Subscription request {sub} message.

Topic default access mode.

Invitation to a topic, sent as MsgServerData.Content.

MsgSetInfo: C2S in set.what == "info" and sub.init message.

MsgSetSub: payload in set.sub request to update current subscription or invite another user, {sub.what} == "sub".

Topic info, S2C in Meta message.

MsgTopicSub: topic subscription details, sent in Meta message.

A single WS connection or a long poll session.

Mapper of sessions to topics.

Topic: an isolated communication channel.