Merge pull request #365 from amerani/migrate/apollo-server

Migrate app-backend/rest-api to Apollo Server 2.0

Author: sid88in

app-backend/dynamodb/yarn.lock

@@ -1,36 +1,34 @@
-import 'babel-polyfill';
-import { graphqlLambda, graphiqlLambda } from 'apollo-server-lambda';
-import lambdaPlayground from 'graphql-playground-middleware-lambda';
-import { makeExecutableSchema } from 'graphql-tools';
+import { ApolloServer } from 'apollo-server-lambda';
 import { schema } from './schema';
 import { resolvers } from './resolvers';
 
-const myGraphQLSchema = makeExecutableSchema({
+const server = new ApolloServer({
   typeDefs: schema,
   resolvers,
-  logger: console,
+  formatError: error => {
+    console.log(error);
+    return error;
+  },
+  formatResponse: response => {
+    console.log(response);
+    return response;
+  },
+  context: ({ event, context }) => ({
+    headers: event.headers,
+    functionName: context.functionName,
+    event,
+    context,
+  }),
+  playground: {
+    endpoint: process.env.REACT_APP_GRAPHQL_ENDPOINT
+      ? process.env.REACT_APP_GRAPHQL_ENDPOINT
+      : '/production/graphql',
+  },
+  tracing: true,
 });
 
-exports.graphqlHandler = function graphqlHandler(event, context, callback) {
-  function callbackFilter(error, output) {
-    // eslint-disable-next-line no-param-reassign
-    output.headers['Access-Control-Allow-Origin'] = '*';
-    callback(error, output);
-  }
-
-  const handler = graphqlLambda({ schema: myGraphQLSchema, tracing: true });
-  return handler(event, context, callbackFilter);
-};
-
-// for local endpointURL is /graphql and for prod it is /stage/graphql
-exports.playgroundHandler = lambdaPlayground({
-  endpoint: process.env.REACT_APP_GRAPHQL_ENDPOINT
-    ? process.env.REACT_APP_GRAPHQL_ENDPOINT
-    : '/production/graphql',
-});
-
-exports.graphiqlHandler = graphiqlLambda({
-  endpointURL: process.env.REACT_APP_GRAPHQL_ENDPOINT
-    ? process.env.REACT_APP_GRAPHQL_ENDPOINT
-    : '/production/graphql',
+exports.graphqlHandler = server.createHandler({
+  cors: {
+    origin: '*',
+  },
 });

app-backend/rest-api/handler.js

@@ -1,9 +1,5 @@
-import { graphqlHandler, playgroundHandler } from './handler';
+import { graphqlHandler } from './handler';
 
 it('graphqlHandler should be a function', () => {
   expect(typeof graphqlHandler).toBe('function');
 });
-
-it('playgroundHandler should be a function', () => {
-  expect(typeof playgroundHandler).toBe('function');
-});

app-backend/rest-api/handler.test.js

@@ -12,13 +12,9 @@
     "deploy-prod": "serverless --stage=production deploy"
   },
   "dependencies": {
-    "apollo-server-lambda": "1.3.2",
-    "apollo-tracing": "^0.0.9",
+    "apollo-server-lambda": "^2.2.1",
     "babel-polyfill": "^6.26.0",
-    "graphql": "^0.10.5",
-    "graphql-playground-middleware": "^1.1.0",
-    "graphql-playground-middleware-lambda": "^1.2.0",
-    "graphql-tools": "2.7.2",
+    "graphql": "^14.0.2",
     "node-fetch": "^1.7.3",
     "oauth": "^0.9.15",
     "twitter": "^1.7.1"

app-backend/rest-api/package.json

@@ -92,7 +92,18 @@ async function getUserTweets(args) {
         .then(tweets => {
           const tweetArray = [];
           let listOfTweets;
-
+          if (tweets.length <= 0) {
+            listOfTweets = {
+              name: '',
+              handle: args.handle,
+              location: '',
+              description: '',
+              followers_count: 0,
+              friends_count: 0,
+              favourites_count: 0,
+              following: [],
+            };
+          }
           return getFollowing(
             args.handle,
             args.consumer_key,

app-backend/rest-api/resolvers.js

@@ -53,6 +53,8 @@ type Query {
     searchAllTweetsByKeyword(keyword: String!): TweetConnection
 }
 
+directive @aws_subscribe(mutations: [String]) on FIELD_DEFINITION
+
 type Subscription {
     addTweet: Tweet
         @aws_subscribe(mutations: ["createTweet"])

app-backend/rest-api/schema.js

@@ -25,17 +25,6 @@ functions:
         path: graphql
         method: post
         cors: true
-  playground:
-    handler: handler.playgroundHandler
-    events:
     - http:
-        path: playground
-        method: get
-        cors: true
-  graphiql:
-    handler: handler.graphiqlHandler
-    events:
-    - http:
-        path: graphiql
-        method: get
-        cors: true
+        path: graphql
+        method: get