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You're reading from  React 18 Design Patterns and Best Practices - Fourth Edition

Product typeBook
Published inJul 2023
Reading LevelExpert
PublisherPackt
ISBN-139781803233109
Edition4th Edition
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Author (1)
Carlos Santana Roldán
Carlos Santana Roldán
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Carlos Santana Roldán

Carlos Santana Roldán is a senior web developer with more than 15 years of experience. Currently, he is working as a Principal Engineer at APM Music. He is the founder of JS Education, where he teaches people web technologies such as React, Node.js, JavaScript, and TypeScript.
Read more about Carlos Santana Roldán

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Creating our resolvers

A resolver is a function that’s responsible for generating data for a field in your GraphQL schema. It can normally generate the data in any way you want, in that it can fetch data from a database or by using a third-party API.

To create our user resolvers, you need to create a file called /backend/src/graphql/resolvers/user.ts. Let’s create a skeleton of what our resolver should look like. Here, we need to specify the functions that are defined under Query and Mutation in our GraphQL schema. So, your resolver should look like this:

export default {
  Query: {
    getUsers: () => {},
    getUser: () => {}
  },
  Mutation: {
    createUser: () => {},
    login: () => {}
  }
}

As you can see, we return an object with two main nodes called Query and Mutation, and we map the queries and the mutations we defined in our GraphQL schema (the User.ts file). Of course, we need to make some changes to receive some parameters and return...

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React 18 Design Patterns and Best Practices - Fourth Edition
Published in: Jul 2023Publisher: PacktISBN-13: 9781803233109

Author (1)

author image
Carlos Santana Roldán

Carlos Santana Roldán is a senior web developer with more than 15 years of experience. Currently, he is working as a Principal Engineer at APM Music. He is the founder of JS Education, where he teaches people web technologies such as React, Node.js, JavaScript, and TypeScript.
Read more about Carlos Santana Roldán