added graphql support

Author: juicycleff

package-lock.json

@@ -17,10 +17,33 @@
     "webpack": "webpack --config webpack.config.js"
   },
   "dependencies": {
-    "@nestjs/common": "^5.0.0",
-    "@nestjs/core": "^5.0.0",
+    "@nestjs/common": "^5.3.7",
+    "@nestjs/core": "^5.3.7",
+    "@nestjs/graphql": "^5.3.1",
+    "@nestjs/jwt": "^0.1.3",
+    "@nestjs/passport": "^5.1.0",
+    "@nestjs/swagger": "^2.5.1",
+    "@nestjs/websockets": "^5.3.7",
+    "@types/joi": "^13.4.5",
+    "apollo-server-express": "^2.0.7",
     "arangojs": "^6.6.0",
+    "cache-manager": "^2.9.0",
+    "class-validator": "^0.9.1",
+    "compression": "^1.7.3",
+    "csurf": "^1.9.0",
+    "dotenv": "^6.0.0",
+    "express-rate-limit": "^3.1.1",
     "fastify-formbody": "^2.0.0",
+    "graphql": "^14.0.2",
+    "graphql-tools": "^3.1.1",
+    "graphql-type-json": "^0.2.1",
+    "hbs": "^4.0.1",
+    "helmet": "^3.13.0",
+    "joi": "^13.6.0",
+    "mqtt": "^2.18.8",
+    "passport": "^0.4.0",
+    "passport-http-bearer": "^1.0.1",
+    "passport-jwt": "^4.0.0",
     "reflect-metadata": "^0.1.12",
     "rxjs": "^6.0.0",
     "typescript": "^2.6.2"

package.json

@@ -1,14 +1,33 @@
 import { Module } from '@nestjs/common';
+import { GraphQLModule } from '@nestjs/graphql';
+import * as GraphQLJSON from 'graphql-type-json';
+import { join } from 'path';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { UsersModule } from './users/users.module';
 import { ConversationsModule } from './conversations/conversations.module';
 import { MessagesModule } from './messages/messages.module';
-import { ControllersService } from './controllers/controllers.service';
+import { AuthModule } from './auth/auth.module';
+import { CommonsModule } from './commons/commons.module';
 
 @Module({
-  imports: [UsersModule, ConversationsModule, MessagesModule],
+  imports: [
+    UsersModule,
+    ConversationsModule,
+    MessagesModule,
+    AuthModule,
+    CommonsModule,
+    GraphQLModule.forRoot({
+      typePaths: ['./**/*.graphql'],
+      context: ({ req }) => ({ req }),
+      resolvers: { JSON: GraphQLJSON },
+      installSubscriptionHandlers: true,
+      definitions: {
+        path: join(process.cwd(), 'src/graphql.ts'),
+      },
+    }),
+  ],
   controllers: [AppController],
-  providers: [AppService, ControllersService],
+  providers: [AppService],
 })
 export class AppModule {}

src/app.module.ts

@@ -0,0 +1,4 @@
+import { Module } from '@nestjs/common';
+
+@Module({})
+export class AuthModule {}

src/auth/auth.module.ts

@@ -0,0 +1,11 @@
+import { Injectable, ExecutionContext } from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { GqlExecutionContext } from '@nestjs/graphql';
+
+@Injectable()
+export class GqlAuthGuard extends AuthGuard('jwt') {
+  getRequest(context: ExecutionContext) {
+    const ctx = GqlExecutionContext.create(context);
+    return ctx.getContext().req;
+  }
+}

src/auth/guards/gql-auth.guard.ts

@@ -0,0 +1,7 @@
+import { Module } from '@nestjs/common';
+import { DateTimeScaler } from './scalers/date-time-scaler';
+
+@Module({
+	providers: [DateTimeScaler],
+})
+export class CommonsModule {}

src/commons/commons.module.ts

@@ -0,0 +1,12 @@
+import { Injectable, NestMiddleware, MiddlewareFunction } from '@nestjs/common';
+
+@Injectable()
+export class LoggerMiddleware implements NestMiddleware {
+  resolve(...args: any[]): MiddlewareFunction {
+    return (req, res, next) => {
+      // tslint:disable-next-line:no-console
+      console.log('Request...');
+      next();
+    };
+  }
+}

src/commons/middlewares/logger.middleware.ts

@@ -0,0 +1,22 @@
+import { Scalar } from '@nestjs/graphql';
+import { Kind } from 'graphql';
+
+@Scalar('DateTime')
+export class DateTimeScaler {
+  description = 'DateTime custom scalar type';
+
+  parseValue(value) {
+    return new Date(value); // value from the client
+  }
+
+  serialize(value) {
+    return value.getTime(); // value sent to the client
+  }
+
+  parseLiteral(ast) {
+    if (ast.kind === Kind.INT) {
+      return parseInt(ast.value, 10); // ast value is always in string format
+    }
+    return null;
+  }
+}

src/commons/scalers/date-time-scaler.ts

@@ -1,7 +1,7 @@
-# import * from '../messages/messages.types.graphql'
-# import * from '../shared.graphql'
+# import MessageConnection from '../messages/messages.types.graphql'
+# import DateTime from '../shared.graphql'
 
-type Conversation  implements Node {
+type Conversation {
   # Generated id for a user. read-only
   _id: ID!
   #  A unique identifier for the object.

src/conversations/conversations.types.graphql

@@ -5,11 +5,11 @@ declare const module: any;
 
 async function bootstrap() {
   const app = await NestFactory.create(AppModule);
-  await app.listen(3000);
+  await app.listen(5000);
 
   if (module.hot) {
     module.hot.accept();
     module.hot.dispose(() => app.close());
   }
 }
-bootstrap();
+bootstrap();