Automatically create resolver signatures for GraphQL

Question

Automatically create resolver signatures for GraphQL

My GraphQL Schema looks like this:

type User {
  id: ID
  name: String
}

type Mutation {
  createUser(name: String): User
}

I am interested in generating the signature and resolver in TypeScript for this schema.

type createUser = (name: string) => User; // <- defining the signature

const createUserResolver: createUser = (name) => {} as User; // <- creating the resolver

I am concerned that if I manually define the createUser signature and the schema changes, I will need to remember to update the signature.

Is there a way to automatically generate the signature when the schema changes?

typescript graphql

Answer 1

Answer №1

If you're looking to enhance your project with GraphQL resolvers in TypeScript, consider utilizing the typescript-resolvers plugin provided by GraphQL Code Generator.

Here's an example configuration setup:

schema: ./graphql/**/.graphql
generates:
  ./src/resolvers-types.ts:
    plugins:
      - typescript
      - typescript-resolvers

After running codegen, you can import a Resolvers type to use within your resolver map:

import { Resolvers } from './resolvers-types';

export const resolvers: Resolvers = {
  Mutation: {
    createUser: (root, args, context) => {
      // The arguments type will be automatically inferred from your type definitions
    },
  }
};

If you ever need to retrieve a specific signature, simply access it like this:

Resolvers['Mutation']['createUser']

Answer 2

If you're looking to enhance your project with GraphQL resolvers in TypeScript, consider utilizing the typescript-resolvers plugin provided by GraphQL Code Generator.

Here's an example configuration setup:

schema: ./graphql/**/.graphql
generates:
  ./src/resolvers-types.ts:
    plugins:
      - typescript
      - typescript-resolvers

After running codegen, you can import a Resolvers type to use within your resolver map:

import { Resolvers } from './resolvers-types';

export const resolvers: Resolvers = {
  Mutation: {
    createUser: (root, args, context) => {
      // The arguments type will be automatically inferred from your type definitions
    },
  }
};

If you ever need to retrieve a specific signature, simply access it like this:

Resolvers['Mutation']['createUser']

Automatically create resolver signatures for GraphQL

Answer №1

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