1.0.2 • Published 6 years ago

graphql-directive-resolve-as v1.0.2

Weekly downloads
27
License
MIT
Repository
github
Last release
6 years ago

graphql-directive-resolve-as

Version downloads PRs Welcome MIT License

Introduction

Graphql directive to resolve fields as different prop names of the belonging object.

This directive helps you not to declare resolvers over and over just because the name you want to expose is different to the prop name.

It allows resolution for nested objects, converting a string in dot notation into an object reference.

Table of Contents

Installation

yarn add graphql-directive-resolve-as

or

npm i graphql-directive-resolve-as

Usage

const { resolveAs } = require('graphql-directive-resolve-as');

const schema = makeExecutableSchema({
  typeDefs,
  resolvers,
  schemaDirectives: {
    resolveAs,
    ...
  },
});

then you can use it in your fields like this:

const typeDefs = `
  type User {
    name: String @resolve_as(name: "firstName")
    lastName: String,
    city: String @resolveAs(name: "country.city.name")
    firstFriend: String @resolveAs(name: "friends.0.name")
  }
  type Query {
    me: User
  }
`;

me query resolver could be something like this:

const resolvers = {
  Query: {
    me: () => ({
      firstName: 'John',
      lastName: 'Doe',
      friends: [
        {
          name: 'Edu'
        },
        {
          name: 'Natalia'
        }
      ],
      country: {
        name:'Germany',
        city: {
          name:'Berlin',
          neighborhood: {
            name: "Kreuzberg"
          }
        }
      }
    }),
  },
};

if you use graphql-import then you need to add this definition on top of the schema:

directive @resolveAs(name: String) on FIELD_DEFINITION

Directive Parameters

name = Path as string in dot notation to the object property to be resolved.

Happy coding :tada:

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