CODEWITHSUNDEEP
nestjsfastify
Prabhat Singh
Prabhat Singh

Reputation: 1555

Unable to set cookie in nestjs, TypeError: Cannot set properties of undefined (setting 'color')

Am trying to set property in session but getting undefined. Using NestJs + Fastify

app.module.ts

import { FastifyAdapter, NestFastifyApplication } from '@nestjs/platform-fastify';
// import fastifyCookie, { FastifyCookieOptions } from 'fastify-cookie'; --this was also not workin

const cookieSession = require( 'cookie-session' );

async function bootstrap() {
  const app = await NestFactory.create<NestFastifyApplication>(
    AppModule,
    new FastifyAdapter( )
    );

  app.register( cookieSession( { 
    keys: [ 'asdsds' ]
  } ) );

  lines...
}
bootstrap();

users.controller.ts

imports...

export class UsersController {

    constructor( private usersService: UsersService, private authService: AuthService ) { }

    @Get( '/colors/:color' )
    setColor( @Param( 'color' ) color: string, @Session( ) session: any ) {
        // console.log( 'check ', session ); --> UNDEFINED
        session.color = color; --> Error HERE
        // session.set( color );
    }

    @Get( '/colors' ) 
    getColor( @Session( ) session: any ) {
        console.log( 'get session: ', session );
        return session.color;
    }

Error is:

[Nest] 41229  - 13/02/2022, 9:51:06 pm   ERROR [ExceptionsHandler] Cannot set properties of undefined (setting 'color')
TypeError: Cannot set properties of undefined (setting 'color')
    at UsersController.setColor (/home/prabhat/Practice/Nest-Fastify/nestfastify/src/users/users.controller.ts:20:22)
    at /home/prabhat/Practice/Nest-Fastify/nestfastify/node_modules/@nestjs/core/router/router-execution-context.js:38:29
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

I have also tried with

// app.register(fastifyCookie );
// app.register(fastifySession, {secret: 'a secret with minimum length of 32 characters'});

Upvotes: 0

Views: 2658

Answers (2)

Prabhat Singh
Prabhat Singh

Reputation: 1555

What worked for me is fastify-secure-session package, mentioned here

Now my main.ts looks like:

imports..
import secureSession from 'fastify-secure-session';

async function bootstrap() {
  const app = await NestFactory.create<NestFastifyApplication>(
    AppModule,
    new FastifyAdapter( )
    );

  app.register(secureSession, {
    secret: 'averylogphrasebiggerthanthirtytwochars',
    salt: 'mq9hDxBVDbspDR6n',
  });

  lines..
}
bootstrap();

And app.controller.ts is:

imports..
import * as secureSession from 'fastify-secure-session'

@Controller( 'auth' )
@MongooseClassSerializerInterceptor( UserDto )
export class UsersController {

    constructor( private usersService: UsersService, private authService: AuthService ) { }

    @Get( '/colors/:color' )
    setColor( @Param( 'color' ) color: string, @Session( ) session: secureSession.Session ) {
        console.log( 'check ', session );
        // session.color = color;
        session.set('color', color)
    }

    @Get( '/colors' ) 
    getColor( @Session( ) session: secureSession.Session ) {
        console.log( 'get session: ', session );
        // return session.color;
        return session.get( 'color' );
    }
   
}

With this am able to set cookie, in NestJs with Fastify.

Still interested in knowing why previous approach is not working for me as mentioned by @Jay in their answer.

Upvotes: 1

Jay McDoniel
Jay McDoniel

Reputation: 70412

cookie-session is an express middleware. so if it's being used with fastify you'll probably end up with req.raw.session for the cookie.

fastify-cookie is a fastify specific package for cookie support, but not sessions directly, so you' need to use req.cookie or make a @Cookie() decorator

@fastify/session is the package for session support in fastify. By using @fastify/session with fastify-cookie you will have access to both req.session and req.cookie

Upvotes: 1

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