Sending Multiple HTTP Requests Asynchronously Using .NET
Aug 11, 2010
Is it possible to send multiple HTTP requests asynchronously to an ASP.NET web site or any other web server using .NET ? And, then. collect responses from those requests as they come using .NET asynchronous paradigm ? Is it possible ? Or would there still be limit of max 2 HTTP connections from .NET using HTTP ?
What's the simplest and most effective way to selectively redirect HTTP requests to your ASP.NET page to its HTTPS equivalent? For example, if my page site URL is [URL], I want to redirect some (or all) page requests to [URL] What's the easiest way to do that?
I am passing some data in HTTP body using the Ajax request. These contents on server are accessible using Request.InputStream. Now i want to write it to file on server disk Asynchronously. How to do that ?
If the data sent using the HTTP is more then i don't want server application to die/get affected. So that i would like to write it Asynchronously.
Following is sample for reference regarding what i am trying to do ...
System.IO.Stream str; // Create a Stream object. str = Request.InputStream; // TO DO Write it to file asyncronously ... str.Write(someFile, 0, strLen);
I am trying to build part of a module where the application will need to email appointments to the recipients. I have some things to meet.
1) the application if using an email and a default email address to email the appointments, the defauilt email address (like email@example.com) should not be in the meeting list or attendee list. 2) Also if I you are suggesting using the outlook interop. How the application has to be pushed to the server. Should the interop be registered or does it pre-exist in the windows server.
For an ASP.NET 4.0 / IIS7 web app, I would like to support compressed HTTP requests. Basically, I would like to support clients that would add Content-Encoding: gzip in the request headers, and compress the body accordingly.
I'm currently reading a lot about node.js. There is a frequent comparison between servers using a traditional thread per request model (Apache), and servers that use an event loop (Nginx, node, Tornado).
I would like to learn in detail about how a request is processed in ASP.NET - from the point it is received in http.sys all the way up to it being processed in ASP.NET itself. I've found the MSDN documentation on http.sys and IIS a little lacking, but perhaps my google-fu is weak today. So far, the best resource I have found is a post on Thomas Marquardt's Blog.
Could anyone shed more light on the topic, or point me to any other resources?
Here's the big picture. We're running a server in IIS 6 that hosts several web sites and applications, and we're in the process of moving the whole thing to a different data center with a slightly different setup. We've notified our users and updated our DNS info so that theoretically everyone will be happily hitting the new server from day 1, but we know that someone will inevitably fall through the cracks.
The powers that be want a "Listener" page/handler that will receive all requests to the server and log the entire request to a text file, including (especially) POST data.
That's where I'm stuck. I don't know how to implement a single handler that will receive all requests to the server. I vaguely understand IIS 6 redirection options, but they all seem to lose the POST data on the redirect. I also know a little about IIS 6's built-in logging, but it ignores POST data as well.
Is there a simple(ish) way to route all requests to the server so that they all hit a single handler, while maintaining post data?
The objective of this component is to be able to forward whatever HTTP requests it receives to forward to a different server based on the parameters but keeping the URL and POST data intact. For example:
If the component receives
It will return the response from either
where XYZ can be valid name of the page. I think I can probably individually create each page to do a Response.Redirect but i am wondering if there is a more generic way to do this? In addition, is this something I have to configure on the IIS level rather than code level?
I have a long poll HTTP request using ASP.NET 4, MVC 2 and AsyncController. If a user closes their browser and kills the HTTP connection without the request completing, I'd like to know about it and completely clean up after them. If I don't, the open and incomplete requests just sit there and eventually IIS stops accepting new requests.
You can simulate my long running HTTP request by making a normal ASP.NET application with a page that has a Thread.Sleep. Even if you close the browser, the request carries on as if it hasn't.
There is a property called Response.IsClientConnected that gets switched to false if the client disconnects, and I can poll this to achieve the desired effect but it's not very clean and I'd like to avoid polling. Is there a way of getting notified when this happens rather than having to poll this property?
I use four different update panels, that use the same timer as trigger.
1) Will the 4 update panels create 4 different HTTP requests to the server? 2) I'm using 4 different panels as the controls are located in different parts of the page, is there a way of putting them in the same update panel? 3) Is this a good coding practice?
I have a form which inserts data in DB on Submit button click but the problem is when client click the button multiple times its sends multiple create requests means multiple button click events for the same time of same data, which must not be.
I tried to disable the button when client click the Submit button first time but after this it does not call server click event handler or not fire the server click event once it got disabled.
Here is the situation. I need to hit ~50 servers and grab some data from a file. I then want to display a few rows for each in an ASP.NET GridView control.
I tried doing this with Threads/ThreadPool and successfully gather all the data in session.
What I'd like to do, and what I am having a hard time figuring out, is update the grid for the user after each server is done loading.
If I put the databinding code in the thread, it will only display whatever has loaded by the time the response is sent back to the client. If I take it out of the thread, I'd have to wait until all threads were done to send the response, and that doesn't do what I want.
I make an asynchronous call from one web service to another web service deployed on different server? The scenario is that an ASP.NET webforms page will call a web service in an async manner. This particular web service will then make another async call to a second web service deployed on different web server. This this possible to achieve, and what additional steps or code would be necessary to make this happen?
Imagine a website where individual clients can see each-other's presence - like a social network or a chatroom.
Client1 connects to my website.The back-end C# code updates a static field to indicate Client1's presence. Client2 connects to my website.Will the back-end C# code for the second request see the information stored in the static field from the first request? Is there anything I need to do to guarantee that these seperate instances of my ASP application are sharing static data?