Merge branch 'lauticouget-patch-1'

Author: kamilmysliwiec

content/recipes/passport.md

@@ -943,7 +943,7 @@ Then, you refer to this via a decorator like `@UseGuards(AuthGuard('myjwt'))`.
 
 #### GraphQL
 
-In order to use an AuthGuard with [GraphQL](https://docs.nestjs.com/graphql/quick-start), extend the built-in AuthGuard class and override the getRequest() method.
+In order to use an AuthGuard with [GraphQL](https://docs.nestjs.com/graphql/quick-start), extend the built-in `AuthGuard` class and override the `getRequest()` method.
 
 ```typescript
 @Injectable()
@@ -978,3 +978,19 @@ whoAmI(@CurrentUser() user: User) {
   return this.usersService.findById(user.id);
 }
 ```
+
+For the passport-local strategy, you'll also need to add the GraphQL context's arguments to the request body so Passport can access them for validation. Otherwise, you'll get an Unauthorized error.
+
+```typescript
+@Injectable()
+export class GqlLocalAuthGuard extends AuthGuard('local') {
+  getRequest(context: ExecutionContext) {
+    const gqlExecutionContext = GqlExecutionContext.create(context);
+    const gqlContext = gqlExecutionContext.getContext();
+    const gqlArgs = gqlExecutionContext.getArgs();
+
+    gqlContext.req.body = { ...gqlContext.req.body, ...gqlArgs };
+    return gqlContext.req;
+  }
+}
+```