How to get JWT payload from different key rather than req.user in NestJS

Question

The way to get payload after the guard is like what this tutorial mentioned.

@UseGuards(JwtAuthGuard)
@Get('profile')
getProfile(@Request() req) {
  return req.user;
}

Basically, you can access the payload with the object key user in the request.

But I'd like to know how to store this payload in another key. Is it possible?

Answer 1

you should define a decorator file for getting user:

export const getUser = createParamDecorator (
    ( data:unknown , ctx:ExecutionContext) => {
        const request=ctx.switchToHttp().getRequest();
        return request.user;
    }
)

and use it in controller like this:

@UseGuards(JwtAuthGuard)
@Get('profile')
getProfile(@getUser() user:User) {

}

you can find documentation here: https://docs.nestjs.com/custom-decorators