chore: switch to Fastify & Mercurius with auth for subscription, queries and mutations

src/app.controller.ts

@@ -1,9 +0,0 @@
-import { Controller, Get } from '@nestjs/common';
-
-@Controller()
-export class AppController {
-    @Get()
-    getHello(): string {
-        return 'Hello World!';
-    }
-}

src/app.module.ts

@@ -5,9 +5,7 @@ import { GraphQLModule } from "@nestjs/graphql";
 import { MercuriusDriver, MercuriusDriverConfig } from "@nestjs/mercurius";
 
 import { AppService } from "./app.service";
-import { AuthModule } from "./auth/auth.module";
 import { UserModule } from "./user/user.module";
-import { AppController } from "./app.controller";
 
 import { GraphqlOptions } from "./graphqlOptions";
 
@@ -24,10 +22,8 @@ import { GraphqlOptions } from "./graphqlOptions";
 			driver: MercuriusDriver,
 			useClass: GraphqlOptions,
 		}),
-		AuthModule,
 		UserModule,
 	],
 	providers: [AppService],
-	controllers: [AppController],
 })
 export class AppModule {}

src/auth/auth.guard.ts

@@ -1,36 +0,0 @@
-import {
-	CanActivate,
-	ExecutionContext,
-	Injectable,
-	UnauthorizedException,
-} from "@nestjs/common";
-import { JwtService } from "@nestjs/jwt";
-
-import { Request } from "express";
-
-@Injectable()
-export class AuthGuard implements CanActivate {
-	constructor(private jwtService: JwtService) {}
-
-	async canActivate(context: ExecutionContext): Promise<boolean> {
-		const request = context.switchToHttp().getRequest();
-		const token = this.extractTokenFromHeader(request);
-		if (!token) {
-			throw new UnauthorizedException();
-		}
-		try {
-			const payload = await this.jwtService.verifyAsync(token, {
-				secret: process.env.JWT_SECRET,
-			});
-			request["user"] = payload;
-		} catch {
-			throw new UnauthorizedException();
-		}
-		return true;
-	}
-
-	private extractTokenFromHeader(request: Request): string | undefined {
-		const [type, token] = request.headers.authorization?.split(" ") ?? [];
-		return type === "Bearer" ? token : undefined;
-	}
-}

src/auth/auth.module.ts

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

src/graphqlOptions.ts

@@ -1,14 +1,46 @@
+import { Injectable, UnauthorizedException } from "@nestjs/common";
 import { GqlOptionsFactory } from "@nestjs/graphql";
-import { Injectable } from "@nestjs/common";
+import { JwtService } from "@nestjs/jwt";
 import { MercuriusDriverConfig } from "@nestjs/mercurius";
 
 @Injectable()
 export class GraphqlOptions implements GqlOptionsFactory {
+	constructor(private readonly jwtService: JwtService) {}
+
 	createGqlOptions(): Promise<MercuriusDriverConfig> | MercuriusDriverConfig {
 		return {
 			autoSchemaFile: "src/schema.gql",
-			subscription: true,
+			subscription: {
-			graphiql: true,
+				context: (_connection, request) => {
+					const authorization = request.headers.authorization;
+					if (!authorization) throw new UnauthorizedException();
+
+					const token = authorization.split(" ")[1];
+					if (!token) throw new UnauthorizedException();
+
+					try {
+						const user = this.jwtService.verify(token);
+						return { user };
+					} catch (error) {
+						throw new UnauthorizedException();
+					}
+				},
+			},
+			graphiql: false,
+			context: (req) => {
+				const authorization = req.headers.authorization;
+				if (!authorization) throw new UnauthorizedException();
+
+				const token = authorization.split(" ")[1];
+				if (!token) throw new UnauthorizedException();
+
+				try {
+					const user = this.jwtService.verify(token);
+					return { user };
+				} catch (error) {
+					throw new UnauthorizedException();
+				}
+			},
 		};
 	}
 }

src/schema.gql

@@ -24,7 +24,7 @@ input CreateUserInput {
 }
 
 input UpdateUserInput {
-  username: String!
+  username: String
   isAdmin: Boolean
   id: String!
 }

src/user/dto/update-user.input.ts

@@ -3,9 +3,9 @@ import { CreateUserInput } from "./create-user.input";
 
 @InputType()
 export class UpdateUserInput extends PartialType(CreateUserInput) {
-    @Field()
-    id: string;
-
 	@Field()
+	id: string;
+
+	@Field({ nullable: true })
 	username: string;
 }

src/user/user.resolver.ts

@@ -1,12 +1,18 @@
-import { Args, Mutation, Query, Resolver, Subscription } from "@nestjs/graphql";
+import {
+	Args,
+	Mutation,
+	Query,
+	Resolver,
+	Subscription
+} from "@nestjs/graphql";
 
-import { UserService } from "./user.service";
-import { User } from "./user.entity";
 import { CreateUserInput } from "./dto/create-user.input";
-import { UpdateUserInput } from "./dto/update-user.input";
 import { SetUserPasswordInput } from "./dto/setpassword-user.input";
+import { UpdateUserInput } from "./dto/update-user.input";
+import { User } from "./user.entity";
+import { UserService } from "./user.service";
 
-import { PubSub } from 'graphql-subscriptions';
+import { PubSub } from "graphql-subscriptions";
 
 const pubSub = new PubSub();