OraFAQ Forum: Application Express, ORDS & MOD_PLSQL » How to send an error? (HTTP 400)

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How to send an error? (HTTP 400) [message #458159]

Thu, 27 May 2010 11:08

spiff
Messages: 2
Registered: May 2010

Junior Member

When an input parameter to a procedure is bad, I'd like to send an HTTP 400 error back to the user with a useful error message.

How do I generate a 400 error from mod_plsql?

All the examples I have seen show how to return nicely formatted HTML, presumably with a status code 200. When I get an exception in my procedure, I'd like to return an error code to the client so that the client doesn't try to parse the content as if it were valid data.

-s

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Re: How to send an error? (HTTP 400) [message #461842 is a reply to message #458159]

Mon, 21 June 2010 15:09

spiff
Messages: 2
Registered: May 2010

Junior Member

The correct answer is to use a couple OWA_UTIL functions that manipulate the HTTP header before returning content for the browser:

    owa_util.status_line(l_status_code, l_message, false);
    owa_util.mime_header(l_mime_type, true, C_HTTP_CHARSET);

or:

    owa_util.status_line(400, 'myapp(): helpful error message here', false);
    owa_util.mime_header('application/json', true, 'ISO-8859-4');
    htp.p('this is page content here')

[Updated on: Mon, 21 June 2010 15:10]

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Re: How to send an error? (HTTP 400) [message #461846 is a reply to message #461842]

Mon, 21 June 2010 16:07

andrew again
Messages: 2577
Registered: March 2000

Senior Member

Thanks for the update

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