useChannels for PubNub Chat Components for React Native

The hook returns a list of channel metadata objects, optionally including the custom data object for each.

Pagination is handled internally. You can adjust the limit of returned channels on a single call (max/default 100) and call a function returned by the hook to get another page of results. This hook also sets up a listener that reacts to updates and removals of already fetched channels.

However, this behavior requires a living subscription to channels getting updated - this should be handled by the components.

const [channels, fetchPage, total, error] = useChannels();

return (
  <Chat {...{ options }}>
    <ChannelList channels={channels} />
  </Chat>
);

Input

Parameter	Type	Required	Defaults	Description
`include`	Object	Optional	n/a	Option to include respective additional fields in the response.
→ `customFields`	Boolean	Optional	`false`	Option to fetch custom fields or not.
`filter`	String	Optional	n/a	Expression used to filter the results. Only objects whose properties satisfy the given expression are returned. See the App Context Filtering Language Definition for more details.
`sort`	Object	Optional	n/a	Key-value pair of a property to sort by and a sort direction. Available options are `id`, `name`, and `updated`. Use `asc` or `desc` to specify sort direction, or specify `null` to take the default sort direction (ascending). Example: {`name: 'asc'}`
`limit`	Number	Optional	`100`	Number of objects to return in response. Default is `100` which is also the maximum value.

Output

Parameter	Type	Description
`array[0]`	ChannelData[]	List of returned channels.
`array[1]`	Function	Function that can be called to fetch another page of channels.
`array[2]`	Number	Total number of stored channels.
`array[3]`	Error	If there's an error fetching channels, it will be available here.

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Output​

Input

Output