Level Up Tutorials MockMang

mockMang.js

import { makeExecutableSchema, addMockFunctionsToSchema } from 'graphql-tools';
import { graphql } from 'graphql';
import GraphQLMock from 'graphql-mock';
import typeDefs from 'imports/startup/both/typeDefs';

// Make a GraphQL schema with no resolvers
const schema = makeExecutableSchema({ typeDefs });

// Creates random id
const revisedRandId = () =>
  Math.random()
    .toString(36)
    .replace(/[^a-z]+/g, '')
    .substr(2, 10);

// Makes all ID types random ids instead of a hello world string
const mocks = {
  ID: () => revisedRandId(),
};
// Add mocks, modifies schema in place
addMockFunctionsToSchema({ schema, mocks });

// Takes a query and args and returns mocked data
const mockMang = async (query, args = {}) => {
  try {
    const res = await graphql(schema, query.loc.source.body, null, null, args);
    res.data.loading = false;
    return res.data;
  } catch (e) {
    return console.log(e.message);
  }
};

// Creates a mocked client
export const mockClient = new GraphQLMock(typeDefs);

export default mockMang;