useMessages hook

the useMessages hook is used to interface with messages belonging to a Chat.

add to imports section

import { useMessages } from '@minchat/reactnative';

Get Messages

Messages retrieved in a conversation are paginated to 25 messages at a time.

const {
         messages,
         loading,
         error,
         paginate,
         paginateLoading,
         sendMessage,
         updateMessage,
         deleteMessage

      } = useMessages(chat)

Field	Type	Description
messages	Message[]	the list of messages returned. this is automatically updated whenever a new message is received for the current conversation.
loading	boolean	Shows the state of querying the messages, used to update your UI to show loading state.
error	object	an error object that is defined if an error occured while trying to query the messages.
sendMessage	function	function called to send a message to the conversation.
updateMessage	function	function called to update a specific message in a conversation.
deleteMessage	function	function called to delete a message in a conversation.
paginate	function	function called to get the next 25 messages, the messages are automatically added to the begining of the messages array.
paginateLoading	boolean	Shows the state of a paginated query for messages, used to update your UI to show pagination state. is true when the paginate function is called and is false when messages are returned.

Send Message

To send a message, call the sendMessage(...) function from useMessages hook.

const message = {
    text: "Hello World!"
}

const callback = (data)=> { /**      */}

sendMessage(message, callback) 

New messages received are automatically added to the messages variable of useMessages(...)

Message Parameters

Field	Type	State	Description
text	string	optional	the text of the message
file	File	optional	upload a file as an attachment
metadata	json object	optional	an optional key value pair for any additional message information such as custom font size, font type, or JSON formatted string. accepts string,number and boolean values

Callback

Field	Type	Description
data	Message	the message that was sent

Update Message

To update a message, call the updateMessage(...) function from useMessages hook.

const message = {
    text: "Updated Hello World!"
}

const callback = (data)=> { /**    
    do something
 */}

updateMessage(messageId, message, callback) 

messages are automatically updated in the messages variable of useMessages(...)

Parameters

Field	Type	State	Description
messageId	string	required	the id of the message to be updated

Message Parameters

Field	Type	State	Description
text	string	optional	the text of the message
file	File	optional	upload a file as an attachment
metadata	json object	optional	an optional key value pair for any additional message information such as custom font size, font type, or JSON formatted string. accepts string,number and boolean values

Callback

Field	Type	Description
data	Message	the message that was updated

Delete Message

To delete a message, call the deleteMessage(...) function from useMessages hook.

deleteMessage(messageId)  

Parameters

Field	Type	Description
messageId	string	the Id of the message to delete