REST HTTP StatusCode without raising an error

[mrluigi2017]

Hi,

I want to control what http status code is returned to the client. I know you can do this with

kbmMWRaiseHTTPError(407,’….’)

or

raise EkbmMWHTTPException.Create(407,’…’)

But it seems a bit odd to use an error if it isn’t for instance if you want to return a 201 Create status code.

I have tried to set the status code as in the code sample, but it doesn’t seem to work (I still get a 200 status code)

var
hlp: TkbmMWHTTPTransportStreamHelper;
begin
hlp := TkbmMWHTTPTransportStreamHelper(ResponseTransportStream.Helper);
hlp.HTTPStatusCode := 201;
// kbmMWRaiseHTTPError(201, ”);
Result := ”;
end;

Any suggestions?

• This topic was modified 3 years, 1 month ago by mrluigi2017.

[kimbomadsen]

Hi,

You can do:

ResponseTransportStream.Params.Values[KBMMW_HTTP_PARAM_OK_STATUS_CODE]:=’201′;

/Kim

[mrluigi2017]

In Fiddler and Postman I still get a 200 status code instead of 201. Are you sure that this should work?

[mrluigi2017]

It looks like that in unit kbmMWHTTPSysServerTransport (didn’t check other transports yet) on line 579 the status code that is set is overwritten by this line of code:

reshlp.HTTPStatusCode:=reshlp.HTTPStatusCodeFromServerStatusCode(res.StatusCode);

 

[kimbomadsen]

Hi,

Ok.. I assumed you were talking about our native transports and REST.

/Kim

[mrluigi2017]

Sorry that 🙁 I am using kbmMWHTTPSysServerTransport. I have tested it with kbmMWTCPServerTransport and kbmMWTCPIPIndyServerTransport and that seems to works fine.

[kimbomadsen]

Hi,

You should be able to do the following in the method that handles your request in the server:

ResponseStream.Error(KBMMW_ERR_HTTP_EXCEPTIONS_MIN+310,’Returning HTTP status 310′); // This will not raise an exception.

Or if you want to signal an error and thus want to signal a specific error code, but not return data. It will actually raise an exception.

kbmMWRaiseHTTPError(310.’Returning HTTP status 310′);

/Kim

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