Sending message - a generic flow - Chat

A simple flow of how to send a message -

Client-side

1. Instantiate the client
2. Call connectUser, pass the token received from the server-side
3. Create a channel/query channel
4. Send a message

const StreamChat = require(‘stream-chat’).StreamChat;
const appID = ‘app-id’;
const userID=‘username’;
const token=‘user-token obtained from the server-side’

const client = StreamChat.getInstance(appID);

const test = async () => {
  const userDetails = await client.connectUser({ 
    id: userID,
  }, token);

  const conversation = client.channel(‘messaging’, ‘Testingchannel’, {
    members: [‘user1’,’user2’],
  })

  await conversation.create();


  const filters = { type: ‘messaging’ , members: { $in: ['Seetha'] } };
  const sort = { last_message_at: -1 };
  const channels = await client.queryChannels(filters, sort);


  const message1 = await conversation.sendMessage({
    text: ‘Helloooo’ + userID,
    mentioned_users: [‘user1’, ‘user2’],
    anotherCustomField: 123
  });

}

We have a server-side which instantiates the Stream client with a secret and all the tokens will be issued from here. We have a few specific actions performed from the server-side only like updating roles, updating channel type, etc.

Please refer to this article for more information on client-side / server-side + token generation -
https://getstream.zendesk.com/hc/en-us/articles/360054926754-Client-Side-and-Server-Side-and-Token-Creation

How do the Chat Client, Server, & Stream API communicate with each other?https://getstream.zendesk.com/hc/en-us/articles/360061669873-How-do-the-Chat-Client-Server-Stream-API-communicate-with-each-other?