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Hello,

I'm writing an FCGI application behind Hiawatha. When there is an API error I would like to send an HTTP error code along with a response. The server sends the error to the client but the response JSON is replace with the Hiawatha error response pages, e.g. the 404 page, etc. I fiddled around with the "ErrorHandler" configuration but I couldn't figure out how to have it return the response from the application.

Cheers,
--
Mike

Hiawatha version: Hiawatha v7.6, cache, SSL, URL toolkit
Operating System: Linux 2.6.31 (embedded)

To make Hiawatha send specific HTTP error codes, you have to send it via the Status header. Here are two examples to send the 500 Internal Server Error code:

PHP:

header("Status: 500");

C:

printf("Status: 500\r\n");

That part is fine, I can send the status header.

The problem is the body of the response, i.e. the JSON portion of the message.

I'm using libfcgi, so I want to do something like this:

FCGX_PutS("Content-type: application/json\r\n"
                     "Status: 400 Bad Request\r\n"
                     "\r\n"
                     "{\"message\":\"Body should be a JSON Hash\"}\n",
                     request->out);

Ideally the client would receive the error response (this part is working) and the response JSON. Currently the response JSON isn't reaching the client, instead I get the Hiawatha 400 page (HTML + some style information).

Thanks for the quick response,
--
Mike