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::: cowboy_http_handler
The `cowboy_http_handler` behaviour defines the interface used
by plain HTTP handlers.
Unless noted otherwise, the callbacks will be executed sequentially.
:: Types
None.
:: Callbacks
: init({TransportName, ProtocolName}, Req, Opts)
-> {ok, Req, State} | {shutdown, Req, State}
Types:
* TransportName = tcp | ssl | atom()
* ProtocolName = http | atom()
* Req = cowboy_req:req()
* Opts = any()
* State = any()
Initialize the state for this request.
The `shutdown` return value can be used to skip the `handle/2`
call entirely.
: handle(Req, State) -> {ok, Req, State}
Types:
* Req = cowboy_req:req()
* State = any()
Handle the request.
This callback is where the request is handled and a response
should be sent. If a response is not sent, Cowboy will send
a `204 No Content` response automatically.
: terminate(Reason, Req, State) -> ok
Types:
* Reason = {normal, shutdown} | {error, atom()}
* Req = cowboy_req:req()
* State = any()
Perform any necessary cleanup of the state.
This callback should release any resource currently in use,
clear any active timer and reset the process to its original
state, as it might be reused for future requests sent on the
same connection. Typical plain HTTP handlers rarely need to
use it.
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