http-status-codes

Is there a way in Grails to catch all the possible HTTP errors before they're being sent to the client browser, as to be able to handle the content being sent to the client? I mean all 4xx and 5xx HTTP status codes , not only the 403, 404 and 500 like other have suggested. What I'd like to do is to catch all HTTP errors in the first place, without having to specify them all one by one, then in a second step I would filter (e.g. in an error controller) specific error codes that I would like to handle (e.g. 400), but at least the ones that I would not specify would render to a generic error

Let's say I create and execute a System.Net.FtpWebRequest . I can use catch (WebException ex) {} to catch any web-related exception thrown by this request. But what if I have some logic that I only want to execute when the exception is thrown due to (550) file not found ? What's the best way to do this? I could copy the exception message and test for equality: const string fileNotFoundExceptionMessage = "The remote server returned an error: (550) File unavailable (e.g., file not found, no access)."; if (ex.Message == fileNotFoundExceptionMessage) { But theoretically it seems like this message

How can I conveniently conditionally set the HTTP status code in an Spring MVC request handler? I have a request handler that responds to POST requests, for creation of a new resource. If the request is valid I want it to redirect to the URI of the new resource, returning a 201 (Created) HTTP status code. If the request is invalid I want it to give the user a chance to correct the error in the submitted form, and should not give a status code of 201. @RequestMapping(value = { "/myURI/" }, method = RequestMethod.POST) public String processNewThingForm( @ModelAttribute(value = "name") final

Am using Rails 3.0.19 and JBuilder Gem 2.0.6 to render JSON responses. JBuilder: https://github.com/rails/jbuilder Following is the code am using to send error-messages for a specific API. render :json, :template=>"/api/shared/errors.json.jbuilder", :status=> :bad_request For some reason, the client receives 200-ok status. While, I have expected 400 (bad_request). Any help, please? Here is my code in detail: def render_json_error_messages #render :template=> "/api/shared/errors.json.jbuilder", :status=> :bad_request, :formats => [:json] respond_to do |format| format.json { render :template=> "

As an HTTP 1.1 server, I reply to a GET request with 200 OK status code, then start sending the data to the client. During this send, an error occurs, and I cannot finish. I cannot send a new status code as a final status code has already been sent. How should I behave to let the client know an error occurred and I cannot continue with this HTTP request? I can think of only one solution: close the socket, but it's not perfect: it breaks the keep-alive feature, and no clear explanation of the error is given to the client. The HTTP standard seems to suppose that the server already knows exactly

I have seen the list of all HTTP status codes. However to me it looks like there is no code for "email not verified" (used for authentication/authorization). Did you ever had the same "problem"? What HTTP status code did you use? I guess it should be a code starting with a 4 as it's a "client error". The 4xx class of status code is intended for situations in which the client seems to have erred: 6.5. Client Error 4xx The 4xx (Client Error) class of status code indicates that the client seems to have erred. Except when responding to a HEAD request, the server SHOULD send a representation