Environment

1. apollo-server
2. express
3. typescript
4. typeorm

Type Definitions (typeDefs.ts)

import { gql } from 'apollo-server-express';

const typeDefs = gql`

  enum Part {
    Hand, Arm, Waist, Bottom
  }

  type PartInfo {
    team: Int,
    tag: String,
    part: Part
  }

  ...

  type Query {
    ...
    hand(team: Int): PartInfo,
    ...
  }

`;
export default typeDefs;

Resolvers (resolvers.ts)

const resolvers = {
  Query: {
    ...
    hand: async (parent, args, context, info) => {
      const { team } = args;

      ...

      return {
        team,
        tag: "handTag",
        part: Part.hand
      }
    }
    ...
  },
};

export default resolvers;

Problem

I want to use enum Part of typeDefs.ts at resolvers.ts

I tried

return {
    team,
    tag: "handTag",
    part: "Hand"
}

also, but dosent work.

How to use enum type which is defined in typeDefs.ts at resolvers.ts ?

check please!

Solution 1:

Besides Schema (typeDef.ts), you should also define your enum in resolver.

const resolvers = {
  Query: {
    ...
    hand: async (parent, args, context, info) => {
      const { team } = args;

      ...

      return {
        team,
        tag: "handTag",
        part: Part.hand
      }
    }
    ...
  },
  Part: {
    Hand: Part.hand
  }
};

export default resolvers;