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Debugging a Web API Project in Visual Studio 2017

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  • D Offline
    D Offline
    Dominick Marciano
    wrote on last edited by
    #1

    I currently have a solution which contains two projects: an ASP.NET site and a Web API project. On the site, I have a page that is meant to call the API using the POST method at address http://localhost:52855/api/v1/GetPrices asynchronously (e.g. response = await base.SendAsync(request, cancellationToken where "base" is a DelegatingHandler). Part of the data that is posted is an API key along with a signature to ensure the user is authorized. However, nothing happens; the Chrome tab just shows the loading symbol continuously. But, if I use Fiddler and make a POST request to the same address (http://localhost:52855/api/v1/GetPrices), but without the API/signature information, I get back the correct response - a 401 Unauthorized and a "WWW-Authenticate: amx" header (where "amx" is the authentication scheme I'm using for testing. If I include the authorization header in Fiddler then I get a 500 Internal Server Error My biggest question is how can I debug the Web API project in Visual Studio 2017 Enterprise edition? I have breakpoints set on all the methods (e.g. the Post method in my GetPricesController : ApiController as well as my HMACAuthenticationAttribute which implements the IAuthenticationFilter). I feel that if I can at least start seeing what's going on when I make the requests with Fiddler, that I may be able to figure out the web app from there. I'm supposed to be doing a demo on this Web API project tomorrow early afternoon and I've been working for the back 11 hours on finishing this up but I'm completely stalled now and have no idea where to go from here. Any help/guidance would be so greatly appreciated. Thank you. P.S. I was using this article http://bitoftech.net/2014/12/15/secure-asp-net-web-api-using-api-key-authentication-hmac-authentication/ to implement the API key validation.

    A black hole is where God tried to divide by zero. There are 10 kinds of people in the world; those who understand binary and those who don't.

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    • D Dominick Marciano

      I currently have a solution which contains two projects: an ASP.NET site and a Web API project. On the site, I have a page that is meant to call the API using the POST method at address http://localhost:52855/api/v1/GetPrices asynchronously (e.g. response = await base.SendAsync(request, cancellationToken where "base" is a DelegatingHandler). Part of the data that is posted is an API key along with a signature to ensure the user is authorized. However, nothing happens; the Chrome tab just shows the loading symbol continuously. But, if I use Fiddler and make a POST request to the same address (http://localhost:52855/api/v1/GetPrices), but without the API/signature information, I get back the correct response - a 401 Unauthorized and a "WWW-Authenticate: amx" header (where "amx" is the authentication scheme I'm using for testing. If I include the authorization header in Fiddler then I get a 500 Internal Server Error My biggest question is how can I debug the Web API project in Visual Studio 2017 Enterprise edition? I have breakpoints set on all the methods (e.g. the Post method in my GetPricesController : ApiController as well as my HMACAuthenticationAttribute which implements the IAuthenticationFilter). I feel that if I can at least start seeing what's going on when I make the requests with Fiddler, that I may be able to figure out the web app from there. I'm supposed to be doing a demo on this Web API project tomorrow early afternoon and I've been working for the back 11 hours on finishing this up but I'm completely stalled now and have no idea where to go from here. Any help/guidance would be so greatly appreciated. Thank you. P.S. I was using this article http://bitoftech.net/2014/12/15/secure-asp-net-web-api-using-api-key-authentication-hmac-authentication/ to implement the API key validation.

      A black hole is where God tried to divide by zero. There are 10 kinds of people in the world; those who understand binary and those who don't.

      M Offline
      M Offline
      maryam saboor
      wrote on last edited by
      #2

      Hi, To debug your API you can write another console application which calls your API. Set the api url to your localhost address, then run your WEB API project(by setting the start project on it), now when you run your console application and call your API, your break point will work ;)

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