Setup graphql-yoga

package.json

@@ -24,12 +24,10 @@
   },
   "dependencies": {
     "axios": "^0.19.0",
-    "body-parser": "^1.19.0",
-    "cors": "^2.8.5",
     "dotenv": "^8.0.0",
-    "express": "^4.17.1",
+    "graphql-tools": "^4.0.5",
+    "graphql-yoga": "^1.18.3",
     "lodash": "^4.17.15",
-    "morgan": "^1.9.1",
     "prisma-client-lib": "^1.34.7"
   }
 }

src/graphql/index.js

@@ -0,0 +1,9 @@
+import { makeExecutableSchema } from 'graphql-tools';
+import userGraphql from './user.graphql';
+
+const schema = makeExecutableSchema({
+  typeDefs: [userGraphql.typeDefs],
+  resolvers: [userGraphql.resolvers]
+});
+
+export default schema;

src/graphql/user.graphql.js

@@ -0,0 +1,46 @@
+import userService from '@/services/user.service';
+
+const typeDefs = `
+  type Query {
+    users: [User!]!
+    user(id: ID!): User
+  }
+  type Mutation {
+    createUser(email: String, name: String!): User
+    updateUser(id: ID!, email: String, name: String!): User
+    deleteUser(id: ID!): User
+  }
+  type User {
+    id: ID!
+    email: String
+    name: String!
+  }
+`;
+
+const resolvers = {
+  Query: {
+    users() {
+      return userService.getUsers();
+    },
+    user(_, args) {
+      return userService.getUser(args.id);
+    }
+  },
+  Mutation: {
+    createUser(_, args) {
+      return userService.createUser(args);
+    },
+    updateUser(_, args) {
+      const { id, name, email } = args;
+      return userService.updateUser(id, { name, email });
+    },
+    deleteUser(_, args) {
+      return userService.deleteUser(args.id);
+    }
+  }
+};
+
+export default {
+  typeDefs,
+  resolvers
+};

src/index.js

@@ -1,31 +1,21 @@
 import dotenv from 'dotenv';
-import express from 'express';
-import bodyParser from 'body-parser';
-import cors from 'cors';
-import logger from 'morgan';
+import { GraphQLServer } from 'graphql-yoga';
+import schema from './graphql';
 
+// Config env.
 dotenv.config();
 
-// Port.
-const port = process.env.PORT || 9000;
+// Initialize graphql server.
+const server = new GraphQLServer({ schema });
 
-// Initialize app.
-const app = express();
-
-// Log request to the console.
-app.use(logger('dev'));
-
-// Body parser.
-app.use(bodyParser.urlencoded({ extended: false }));
-app.use(bodyParser.json());
-
-// Enable cors.
-app.use(cors());
-
-// Routes.
-app.get('/', (req, res) => res.send('<p>👋 Xin chào</p>'));
+// Graphql options.
+const options = {
+  port: process.env.PORT || 9000
+};
 
 // Start server.
-app.listen(port, () => {
-  console.log(`Server started on http://localhost:${port}`);
-});
+server.start(options, () =>
+  console.log(
+    `Server is running on http://localhost:${options.port}`
+  )
+);