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ankur745's avatar
ankur745
Copper Contributor
Oct 03, 2023

Geeting CORS in API while calling inside Teams APP TAB

Getting CORS in API while calling inside Teams APP TAB Calling API in Teams App TAB const u = `${domain}/api/login.json`; fetch(u, requestOptions) .then(resp => { } While calling API w...
developer
microsoft teams
  • ankur745's avatar
    ankur745
    Copper Contributor
    Oct 05, 2023
    Hey basically I want to call 3rd party API.. so how i can simply call API?
    • Prasad_Das-MSFT's avatar
      Prasad_Das-MSFT
      Icon for Microsoft rankMicrosoft
      Oct 11, 2023

      ankur745 - 

      Teams Platform/SDK doesn't do anything to interfere with AJAX requests made by apps. CORS is standard mechanism implemented by all browsers that limits cross-origin network calls. If an app is trying to make a cross-origin network request, then the backend API must allow it first by responding correctly to the OPTIONS call. Here is an example:

       

       

      There is documentation on CORS here:

      https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS

       

      Could you please provide us Fiddler trace of the request, so that we will be able to point out what the exact issue is?

    • Prasad_Das-MSFT's avatar
      Prasad_Das-MSFT
      Icon for Microsoft rankMicrosoft
      Oct 05, 2023

      ankur745 - We are checking this with engineering team. We will inform you once we hear anything from them. Thanks!

  • ankur745's avatar
    ankur745
    Copper Contributor
    Oct 04, 2023

    Prasad_Das-MSFT No, it's not helpful. I'm receiving data from my server API but Teams SDK not passed that data to me... in code getting type = CORS issue..looks like Teams SDK restricting data . I have attached two screenshots to my question.

    Is the team's app tab allowing to call 3rd Party API?

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