Created
July 3, 2013 08:03
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A boilerplate template to use for an HttpHandler <httpHandlers> <add verb="GET,POST,WHATEVER" path="SomeEndPoint.ashx" type="MyNamespace.MtHandler, MyAssemblyName" />
</httpHandlers>
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public class MyHandler : IHttpHandler | |
{ | |
private const string CONSTSOMEPARAM = "SomeParam"; | |
public MyHandler(){} | |
public void ProcessRequest(HttpContext context) | |
{ | |
// Don't allow this response to be cached by the browser. | |
// Note, you MIGHT want to allow it to be cached, depending on what you're doing. | |
context.Response.Cache.SetCacheability(HttpCacheability.NoCache); | |
context.Response.Cache.SetNoStore(); | |
context.Response.Cache.SetExpires(DateTime.MinValue); | |
if (ValidateParameters(context) == false) | |
{ | |
//Internal Server Error | |
context.Response.StatusCode = 500; | |
context.Response.End(); | |
return; | |
} | |
if (context.User.Identity.IsAuthenticated == false) | |
{ | |
//Forbidden | |
context.Response.StatusCode = 403; | |
context.Response.End(); | |
return; | |
} | |
string someParam = context.Request.QueryString[CONSTSOMEPARAM]; | |
SomethingReponse response = SomeService.SomeImportantThing(someParam); | |
if(response.Header == null || response.Header.Success == false) | |
{ | |
//Whatever wasn't found | |
context.Response.StatusCode = 404; | |
context.Response.End(); | |
return; | |
} | |
context.Response.ContentType = "somespecific/mimetype"; | |
context.Response.BinaryWrite(); | |
//or | |
context.Response.Write(); | |
//or | |
context.Response.WriteFile(); | |
//or | |
someImageStream.Save(context.Response.OutputStream); | |
} | |
public bool ValidateParameters(HttpContext context) | |
{ | |
//Validate some stuff...true if cool, false if not | |
return false; | |
} | |
/// <summary> | |
/// True if this handler can be reused between calls. That's cool if you don't have any class instance data. | |
/// False if you'd rather get a fresh one. | |
/// </summary> | |
public bool IsReusable | |
{ | |
get | |
{ | |
return true; | |
} | |
} | |
} |
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