[99s-extend] cowboy_rest, POST and redirect

[Rolph de Ruiter]

Hi,

I'm using cowboy_rest for a part of our api to handle POST requests. Under certain conditions, I would like to redirect to a new location (based on availability of the redirect qs parameter).
I was unable to get the moved_temporarily/2 callback to work (was not invoked at al). So I just do the 302 myself, using cowboy_req:reply/4. This works, however, every time it produces an error in the emulator process:
 [error] emulator Error in process <0.509.0> on node 'api at dev.loc' with exit value: {function_clause,[{cowboy_req,reply,[204,[],<<0 bytes>>,{http_req,#Port<0.14491>,ranch_tcp,keepalive,<0.509.0>,<<4 bytes>>,'HTTP/1.1',{{10,10,10,1},62197},<<15 bytes>>,undefined,8000,<<26 bytes>>,undefined,<<14 bytes>>,[{<<8 bytes>>,<<5 bytes>>}],[{method,<<5 bytes>>}],[{<<4 bytes>>,<<20 bytes>>},{<<10 bytes>>,<<10 bytes>>},{<<14 bytes>>,<<2 bytes>>},{<<6 bytes>>,<<74 bytes>>},{<<6 bytes>>,<<27 bytes>>},{<<10 bytes>>,<<120 bytes>>},{<<12 bytes>>,<<33 bytes>>},{<<7 bytes>>,<<54 bytes>>},{<<15 bytes>>,<<17 bytes>>},{<<15 bytes>>,<<14 bytes>>},{<<6 bytes>>,<<245 bytes>>}],[{<<14 bytes>>,34},{<<6 bytes>>,undefined},{<<14 bytes>>,34},{<<12 bytes>>,{<<11 bytes>>,<<21 bytes>>,[]}},{<<17 bytes>>,undefined},{<<13 bytes>>,...

Can you point me out how to (ideally) make use of moved_temporarily/2 or how I can prevent cowboy_rest from wanting to reply with 204 in this case?

Cheers,
Rolph
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