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

Creating a new message

We can use the addPost mutation as our basis, and extend it. The result accepts a chatId and uses the first user from our database. Later, the authentication will be the source of the user ID:

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

addMessage(root, { message }, context) {  logger.log({    level: 'info',    message: 'Message was created',  });   return User.findAll().then((users) => {    const usersRow = users[0];     return Message.create({      ...message,    }).then((newMessage) => {      return Promise.all([        newMessage.setUser(usersRow.id),        newMessage.setChat(message.chatId),      ]).then(() => {        return newMessage;      });    });  });},

2. Then, add the new mutation to your GraphQL schema. We also have a new ...