How to set response header in nestjs with fastify

Question

I'm trying to set a custom reponse header in a nest js controller and using fastify.
Currently I'm trying to do:

@Post()
async methodName(@Res res){
res.set('key', 'value');
};

But I get the error: res.set is not a function
Can someone help me?

score 5 · Accepted Answer · answered Mar 03 '20 at 11:29

5

The solution was:

res.header('key', 'value');

answered Mar 03 '20 at 11:29

Lex den Otter

score 1 · Answer 2 · answered Mar 03 '20 at 15:59

1

If you are needing to set a static header value as well, you can always use the @Header() decorator on the route handler so you could have

@Post()
@Header('key', 'value')
async method() {
  return something;
}

answered Mar 03 '20 at 15:59

Jay McDoniel

What if I want to pass a dynamic value to a header? Let's say a filename to the "Content-Disposition" header? – m-ketan Nov 30 '22 at 06:02
1

You could use `@Res({ passthrough: true }) response: FastifyReply` to do `response.header()` and still have Nest handle sending the response – Jay McDoniel Nov 30 '22 at 06:21
```@Res({ passthrough: true })``` did the trick for me. – m-ketan Dec 01 '22 at 02:52

2 Answers2