[99s-extend] cowboy_rest, POST and redirect

[Rolph de Ruiter]

(forgot to include the list)

On 10/29/13 10:14 AM, "Rolph de Ruiter" <Rolph.deRuiter at spilgames.com>
wrote:

>Thanks!
>
>{halt, NewReq, State} worked like a charm :)
>
>Cheers,
>Rolph
>
>On 10/29/13 10:09 AM, "Loïc Hoguin" <essen at ninenines.eu> wrote:
>
>>On 10/29/2013 10:00 AM, Rolph de Ruiter wrote:
>>> 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?
>>
>>moved_temporarily is only called if the resource previously existed.
>>
>>As for calling reply yourself, you just need to return {halt, NewReq,
>>State} afterwards.
>>
>>-- 
>>Loïc Hoguin
>>Erlang Cowboy
>>Nine Nines
>>http://ninenines.eu
>