Hands-On Full-Stack Web Development with GraphQL and React

Creating a new chat

New users want to chat with their friends. Creating a new chat is essential, of course.

The best way to do this is to accept a list of user IDs that also allows the creation of group chats. Do this as follows:

1. Add the addChat function to the RootMutation in the resolvers.js file, as follows:

addChat(root, { chat }, context) {  logger.log({    level: 'info',    message: 'Message was created',  });  return Chat.create().then((newChat) => {    return Promise.all([      newChat.setUsers(chat.users),    ]).then(() => {      return newChat;    });  });},

Sequelize added the setUsers function to the chat model instance. It was added because of the associations using the belongsToMany method in the chat model. There, we can directly provide an array ...