Graphql resolve function on nested fields not getting called

Question

With this query, in graphQL, the resolve function on desiredSubfield is not getting called, and the query returns null. How can I properly resolve a nested field?

Query:

{
    "query": "query ($requiredArg: String!, $anotherArg: String) { user(requiredArg: $requiredArg) { desiredSubfield(anotherArg: $anotherArg) { _id name} } }",
    "variables": {
        "requiredArg": "someString",
        "anotherArg": "anotherString"
    }
}

Associated Object:

export default {
  type: userType,
  args: {
    requiredArg: {
      name: 'requiredArg',
      type: new GraphQLNonNull(GraphQLString),
    },
  fields: () => {
    return {
      desiredSubfield: {
        type: subfieldType,
        args: subfieldType.args,
        resolve(source, params, root, ast) {
          console.log('subfield resolve is hit');
          return fetchUser();
        },
      },
    };
  },
  resolve(source, params, root, ast) {
    console.log('in main resolve');
  }
};

score 2 · Accepted Answer · answered Jun 06 '17 at 15:13

Well, looks like I figured it out (sigh)

Problem is the dummy resolve function I wrote for the non-nested fields didn't return. Behold the fix:

export default {
  type: userType,
  args: {
    requiredArg: {
      name: 'requiredArg',
      type: new GraphQLNonNull(GraphQLString),
    },
  fields: () => {
    return {
      desiredSubfield: {
        type: subfieldType,
        args: subfieldType.args,
        resolve(source, params, root, ast) {
          console.log('subfield resolve is hit');
          return fetchUser();
        },
      },
    };
  },
  resolve(source, params, root, ast) {
    console.log('in main resolve');
    return true;
  }
};

I'll leave this here in case anyone else runs into the same thing.

Graphql resolve function on nested fields not getting called

1 Answers1