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I am using angular 7 for front end and calling web api built using asp.net mvc deployed in Azure web app services.

For a specific API for uploading file, I get "Http failure response for {APIURL}: 0 Unknown Error" where 0 is response status. If the file is smaller than 400MB, this works fine. However for files larger than 400MB I get the above error on front end after 3-4 minutes. But at the backend, web API continues to run and completes in around 4-5 minutes total time.

I am using HttpClient requests from angular. Any pointer will be helpful.

Thank you!

Sushrut Paranjape
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1 Answers1

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When I tried to call the above API endpoint from Postman tool, I found that due CORS error I was getting response status 0 unknown error.

The actual error was '500 - The request timed out.'. This is due to the fact that azure web app times out after 230 seconds. I found a similar question on stack overflow at: Azure ASP .net WebApp The request timed out

Sushrut Paranjape
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