referance content
Channel Groups
Channel Groups allows PubNub developers to bundle thousands of channels into a group that can be identified by name. These Channel Groups can then be subscribed to, receiving data from the many backend-channels the channel group contains.
| Name | Description |
|---|---|
| Add Channels | Add channel to a channel group. |
| List Channels In Channel Group | List all channels of a channel group. |
| Remove Channels | Remove channel from channel group. |
| Remove Channels Groups | Remove channel groups. |
PresencePubNub's Channel Presence empowers your applications to Track online and offline status of users and devices in realtime.
| Name | Description |
|---|---|
| Get State | Get state is used to get the key/value pairs specific to a subscriber uuid. |
| Heartbeat | Timeout events are triggered when the server does not hear a hearbeat from the client within a default timeout time of 280 seconds. |
| Here Now | Obtain information about the current state of a channel including a list of unique user-ids currently subscribed to the channel and the total occupancy count of the channel. |
| Set State | Set state is used to set key/value pairs specific to a subscriber uuid. |
| Where Now | Obtain information about the current list of a channels to which a uuid is subscribed to. |
PublishPublish a message on a channel.
| Name | Description |
|---|---|
| Publish Asynchronously | Publish the message asynchronously. |
| Publish RAW JSON | Publish JSON as is. |
| Publish Synchronously | Publish the message synchronously. |
| Publish using GET | Publish using HTTP GET |
| Publish with Metadata | Publish extra meta with the request used for Message Filtering. |
| Send a Signal | Has support to send a Signal |
| Store Flag | Ability to skip message from storage. |
StoragePubNub's Storage and Playback feature enables developers to store messages as they are published, and retrieve them at a later time.
| Name | Description |
|---|---|
| Count | Specifies the number of historical messages to return. |
| Count of Messages on Channels | The API is a history based API that simply does a mostly normal history operation but instead of returning the messages in a channel it returns the count of messages. Without actually calling history on those channels this API gives you the ability to say if there are messages in the chat channel you can go look at further. |
| Include Timetoken | Whether event dates time tokens should be included in response or not. |
| Reverse | Traverse the timeline in reverse starting with the oldest message first. |
| Start End | Time token delimiting the start/end of time slice (exclusive) to pull messages from. |
SubscribeThis function causes the client to create an open TCP socket to the PubNub Real-Time Network and begin listening for messages on a specified channel.
| Name | Description |
|---|---|
| Signal Listener | Has support to listen to Signal messages |
| Subscribe to channel groups | Ability to subscribe to channel groups. |
| Subscribe to channels | Ability to subscribe to channels. |
| Subscribe to presence channel groups | Ability to subscribe to presence channel groups. |
| Subscribe to presence channels | Ability to subscribe to presence channels. |
| Wildcard subscribe | Wildcard subscribes allow the client to subscribe to multiple channels using wildcard. E.g., if you subscribe to a.* you will get all messages for a.b, a.c, a.x. The wildcarded * portion refers to any portion of the channel string name after the dot (.). |
TimeReturn a 17 digit precision Unix epoch from the server.
| Name | Description |
|---|---|
| Time | This function will return a 17 digit precision Unix epoch from the server. |