fastify-cookie | A Fastify plugin to add cookies support | Plugin library

we have a NestJS GraphQL server running and we are trying to set an httpOnly cookie in an interceptor. The set seems to work if we call the mutation by Postman, showing the cookie in the cookies tab. But calling the mutation from the Playground, there is no trace of the cookie in the browser. Even accessing the request.cookies property in a guard gives us no results. What are we doing wrong?

The server is fastify based and we are using fastify-cookie library to set the cookie.

The interceptor code is:

I have problem with fastify sessions. I am using typescript:

I have a node.js auth api served on auth.app.loc, a frontend next.js(react) served on app.loc and nginx acting as a reverse proxy.

Any request I make resolves successfuly except, that the cookies are not sent from the server.

Here's my auth service summed up. Served on port 5000 in a docker container.

I'm registering fastify-csrf package to the NestJS application with Fastify adapter. I'm simply trying to send a GET request to the root (/) of the site. It keeps giving me the error:

With typescript 3.7.3, when I build my project it generates invalid triple slash directives in my main index.d.ts.

this is an extract of my index.d.ts :

I have login route, that return user: