webrequest

How to force WebRequest to send Authorization header during POST

南楼画角 提交于 2019-11-29 03:26:20
When using WebRequest to send a POST, the Authorization header is not sent with the request even though I have manually set the header and set PreAuthenticate to true, eg: webRequest.Headers["Authorization"] = "OAuth oauth_consumer_key=bFPD..."; webRequest.PreAuthenticate = true; Using Fiddler I can see that the Authorization header is not sent. The target site (Twitter) returns a 400 (Bad request) rather than a 401 (Not authorized) which is therefore the incorrect challenge required for WebRequest to send the Authorization data. For information, the returned content is: {"errors":[{"message":

Reasons for a 409/Conflict HTTP error when uploading a file to sharepoint using a .NET WebRequest?

血红的双手。 提交于 2019-11-28 21:11:24
I've got a method that uses a WebRequest to upload a file to a sharepoint 2010 list/folder, using a PUT request, with the Overwrite Header set to T (overwrite). When several files are uploaded (method is called several times), some requests fail with a 409 Conflict HTTP error. I've googled, and it seems the most common reason is trying to affect/update a file that does not exist (like setting the request URL to a path without a file name). However, that is not the case. In case the conflict had something to do with the file already existing, I added code to physically delete the file before

HttpWebRequest: Add Cookie to CookieContainer -> ArgumentException (Parametername: cookie.Domain)

ε祈祈猫儿з 提交于 2019-11-28 19:06:27
I'm trying to login to a website via my application. What I did: First I figured out how the browser does the authorization process with Fiddler. I examined how the POST request is built and I tried to reconstruct it. The browser sends 4 cookies (Google Analytics) and I tried to set them: CookieContainer gaCookies = new CookieContainer(); gaCookies.Add(new Cookie("__utma", "#########.###########.##########.##########.##########.#")); gaCookies.Add(new Cookie("__utmb", "#########.#.##.##########")); gaCookies.Add(new Cookie("__utmc", "#########")); gaCookies.Add(new Cookie("__utmz", "#########.

Is WebRequest The Right C# Tool For Interacting With Websites?

微笑、不失礼 提交于 2019-11-28 16:28:48
问题 I'm writing a small tool in C# which will need to send and receive data to/from a website using POST and json formatting. I've never done anything like this before in C# (or any language really) so I'm struggling to find some useful information to get me started. I've found some information on the WebRequest class in C# (specifically from here) but before I start diving into it, I wondered if this was the right tool for the job. I've found plenty of tools to convert data into the json format

How to get json response using system.net.webrequest in c#?

我的未来我决定 提交于 2019-11-28 15:46:21
I need to get json data from an external domain. I used webrequest to get the response from a website. Here's the code: var request = WebRequest.Create(url); string text; var response = (HttpWebResponse) request.GetResponse(); using (var sr = new StreamReader(response.GetResponseStream())) { text = sr.ReadToEnd(); } Anyone know why I can't get the json data? You need to explicitly ask for the content type. Add this line: request.ContentType = "application/json; charset=utf-8"; At the appropriate place Some APIs want you to supply the appropriate "Accept" header in the request to get the wanted

How do you send an HTTP Get Web Request in Python? [duplicate]

不羁岁月 提交于 2019-11-28 15:42:20
This question already has an answer here: What is the quickest way to HTTP GET in Python? 11 answers I am having trouble sending data to a website and getting a response in Python. I have seen similar questions, but none of them seem to accomplish what I am aiming for. This is my C# code I'm trying to port to Python: static void Request(Uri selectedUri) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(selectedUri); request.ServicePoint.BindIPEndPointDelegate = BindIPEndPointCallback; request.Method = "GET"; request.Timeout = (int)Timeout.TotalMilliseconds; request.ReadWriteTimeout

WebRequest has no GetResponse method - Windows Phone 8

混江龙づ霸主 提交于 2019-11-28 13:01:02
问题 I want to send a post request to an API with some parameters they ask for... I ended up just creating a string, it's ugly but I do not know a way of making it work differently. I then found lots of variations on this WebRequest class, but unfortunately I cannot get it to work. Main problem is probably because I am not really understanding how this is all fitting together but basically, the examples I have been following use WebRequest method GetResponse ... even on MSDN it has this, so I am

Using HTTP Authentication with a C# WebRequest

和自甴很熟 提交于 2019-11-28 11:53:05
I want to make a web request to a page that needs authenticating. How would I go about doing this? I found something that said possibly to use the Credentials property, but I'm not sure how to use it. Assign a new NetworkCredential instance to the Credentials property: webClient.Credentials = new NetworkCredential("Mehrdad", "Password"); Basic auth example: public void SetBasicAuthHeader(WebRequest req, String userName, String userPassword) { string authInfo = userName + ":" + userPassword; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); req.Headers["Authorization"] =

How to Replace WebClient with HttpClient?

社会主义新天地 提交于 2019-11-28 11:31:43
I have the following WebClient inside my asp.net mvc web application: using (WebClient wc = new WebClient()) // call the Third Party API to get the account id { string url = currentURL + "resources/" + ResourceID + "/accounts?AUTHTOKEN=" + pmtoken; var json = await wc.DownloadStringTaskAsync(url); } So can anyone advice how I can change it from WebClient to be HttpClient? Hakan Fıstık You can write the following code: string url = currentURL + "resources/" + ResourceID + "/accounts?AUTHTOKEN=" + pmtoken; using (HttpClient client = new HttpClient()) { using (HttpResponseMessage response =

CHROME WebRequest APIs example error: “onBeforeRequest” can only be used in extension processes

非 Y 不嫁゛ 提交于 2019-11-28 11:31:43
I try to test a example of WebRequest APIs , but throw error: "onBeforeRequest" can only be used in extension processes. manifest.json: { "name": "example", "version": "1.0", "permissions": [ "experimental", "http://*/*", "https://*/*" ], "content_scripts": [ { "js": [ "foo.js" ], "matches": [ "http://*/*", "https://*/*" ], "run_at": "document_start" } ] } foo.js is exactly the example 1 Chrome extension functions (which includes the webRequest API) cannot be used in content scripts ( foo.js in your example). If you wish to use webRequest from a content script, you can use the messaging