Detox your GraphQL: Mock schema

mockSchema.js

const { ApolloServer } = require("apollo-server-express");
const { buildClientSchema } = require("graphql");

const { resolvers } = require("./schema");
const introspectedSchema = require("./schemaExample.json");

const PORT = 8089;

function createServerWithMockedSchema(customMocks = {}) {
  const schema = buildClientSchema(introspectedSchema);

  const server = new ApolloServer({
    schema: schema,
    resolvers: resolvers,
    mocks: customMocks,
    playground: {
      endpoint: `http://localhost:${PORT}/graphql`
    }
  });
  return server;
}