al_serverless_handler.js

'use strict';

const server = require("apollo-server-lambda");
const schema = require('./schema');
exports.graphql = server.graphqlLambda((event, context) => {
  const headers = event.headers;
  const functionName = context.functionName;

   return {
       schema: schema,
       context: {
           headers,
           functionName,
           event,
           context
       }
   };
});

exports.graphiql = server.graphiqlLambda({
    endpointURL: '/Prod/graphql'
});

exports.hello = (event, context, callback) => {
  const response = {
    statusCode: 200,
    body: JSON.stringify({
      message: 'Go Serverless v1.0! Your function executed successfully!',
      input: event,
    }),
  };

  callback(null, response);
};