400 Error When Calling Web Service
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platform and distributed applications 400 bad request when POSTing WebService or WCF request from IE ★★★★★★★★★★★★★★★ APGC DSI TeamJanuary 29, calling web service java 20120 0 0 0 Symptom Let’s suppose such a scenario:
Calling Web Service C#
Ø You have a website which enables NTLM authentication. Ø There’s a virtual directory under this calling web service php website, which enables Anonymous authentication. Ø There’s a Web Service or WCF Service in this virtual directory. Ø You have a web page in the root directory of calling a web service from vb.net example the website, and you try to post a request to the Web/WCF Service through AJAX/Silverlight. You will possibly get “400 bad request” error for this Web Service or WCF Service call. In some situation, it also happens if you just put the Web/WCF service in the same web folder as the web page but only
Calling A Web Service Asynchronously C#
enable Anonymous authentication for Web/WCF service. Root Cause The below items can explain why the problem happens. A. NTLM is a Challenge/Response protocol, and the authentication procedure is as below. a. Typically, the client issues an initial anonymous request. When the anonymous request is rejected, IIS returns a 401.2 error and the WWW-Authenticate headers. b. If the client fails or does not support Kerberos, the Negotiate and NTLM header values initiate an NTCR authentication exchange. The client closes the TCP connection, opens a new one, and sends a request that includes an Authorization: NTLM header. This header also includes encoded text that represents the users UserName, ComputerName, and Domain. This text is used by the Windows Security Support Provider Interface (SSPI) to generate the challenge. If the user account is not a local Windows account on the IIS server, the data is passed on to an appropriate domain controller, which then generates the challenge. c. The challenge is s
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Calling Web Service Visual Basic
Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up The request failed with HTTP https://blogs.msdn.microsoft.com/asiatech/2012/01/29/400-bad-request-when-posting-webservice-or-wcf-request-from-ie/ status 400: Bad Request ( The data is invalid. ): Code base Works on one machine but not another up vote 3 down vote favorite This will probably be an environmental issue but I'm stumped as where to start. I'm attempting to call a a webservice on an external server in an asp.net web app while debugging in VS2008. The exact same code/project works on one http://stackoverflow.com/questions/18115696/the-request-failed-with-http-status-400-bad-request-the-data-is-invalid-c machine calling the server but on another machine (my new one) it fails with the 400 Bad request (data is invalid) error. Both machines are running Windows 7. What should I be looking for as differences in the two machines that could be contributing to this problem? Edit Deleting the webreference in the project and re-creating the webreference had no effect Update I went to use Fidler2 to inpect the request and response which resulted in the error going away. Things are beginning to point to an internet proxy issue. asp.net web-services visual-studio-2008 share|improve this question edited Aug 8 '13 at 0:13 asked Aug 7 '13 at 23:49 Jon P 8,07542652 Are you able to enter the web service address on the machine that is not working and append ?wsdl to the end of the address and receive the WSDL back or no? –Karl Anderson Aug 8 '13 at 0:08 Second, turn off friendly HTTP error messages in your browser (in IE it is Tools -> Internet Options -> Advanced and then un-check the show friendly HTTP errors check box. –Karl Anderson Aug 8 '13 at 0:09 @KarlAnderson yes, w
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn http://stackoverflow.com/questions/36238977/https-wcf-webservice-giving-http-400-error-while-calling-method-from-browser more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Https WCF webservice giving Http 400 error while calling method from browser up vote -1 down vote favorite I have created a wcf web service. web service When i run it for http it works fine and gives result in wcftestclient as well as browser. But when i test for https by changing it fot https it gives result in wcftestclient but when i try to call method from url by passing parameters. i receive error. HTTP 400 error It’s not you, it’s this link (it appears to be broken). I have changed configuration file for https. It is working in wcftestclient but calling web service not in browser. it gives wsdl file but error for method calling. I call method as https://my-pc/Service.svc/LogIn?a;a wcf share|improve this question edited Mar 27 at 5:47 asked Mar 26 at 18:14 Jasbeer Singh 12 Welcome to Stack Overflow. We understand that a lot of people using SO do not speak English natively. I'd recommend having a co-worker or peer read your question and help you rewrite it using better spelling and grammar. As it is currently written it's very difficult to understand. –the Tin Man Mar 26 at 22:49 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote Quick way is Goto project properties of your WCF Service Project in Visual studio, open Web tab/page and make sure IIS web server is selected and IIS Express not selected mention your web address like https://localhost/WcfService1 and if virtual directory is not created then Click on "Create Virtual Directory Button", visual studio will create with required SSL settings for you. To verify open Internet Information Manager(inetmgr), select service virtual directory/website and verify binding in Actions pane on the right hand side. It should have two browse links under Manage Application heading one for HTTP and one for HTTPS. Hope this helps. share|improve this answer answered Mar 27 at 21:45 Adil 11 add a comment| Your Answer draft saved dra