GET API timing out after 5 minutes when called via Azure Application

Question

GET API timing out after 5 minutes when called via Azure Application

Sanil Davis 0

Title

GET API timing out after 5 minutes when called via Azure Application.

Details

When calling a GET API through an Azure Application, the request is timing out automatically after 5 minutes. However, when calling the same request via Local Host, the API is being successfully retrieved. Attached is an image for reference:

Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-11-21T03:37:09.3266667+00:00

Hi @Sanil Davis

I don't see image, but there isn't enough information for the community to effective help you. However, what I can suggest is to use the Diagnose and solve problems blade to actively troubleshoot what's the root cause of the timeouts. You can refer to HTTP Errors for 500s and collect profiling traces to see why your application is taking so long to make the request.

EDIT 20 November 2023

I see that you created a support case and the API in question is being hosted in APIM. I'm not certain if the 500 is being caused by one endpoint or all endpoints but the support engineer is awaiting your response.
Ben Gimblett 4,560 Reputation points Microsoft Employee

2023-11-24T11:58:22.7733333+00:00

The default idle timeout for APIM to call a backend is doc at 300 secs/5mins however as also mentioned in docs the underlying infrastructure will normally timeout an idle http request at 240seconds

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Ryan Hill 30,281 Reputation points Microsoft Employee Moderator

2023-11-21T03:37:09.3266667+00:00

Hi @Sanil Davis

I don't see image, but there isn't enough information for the community to effective help you. However, what I can suggest is to use the Diagnose and solve problems blade to actively troubleshoot what's the root cause of the timeouts. You can refer to HTTP Errors for 500s and collect profiling traces to see why your application is taking so long to make the request.

EDIT 20 November 2023

I see that you created a support case and the API in question is being hosted in APIM. I'm not certain if the 500 is being caused by one endpoint or all endpoints but the support engineer is awaiting your response.
Ben Gimblett 4,560 Reputation points Microsoft Employee

2023-11-24T11:58:22.7733333+00:00

The default idle timeout for APIM to call a backend is doc at 300 secs/5mins however as also mentioned in docs the underlying infrastructure will normally timeout an idle http request at 240seconds

Answer 1

Ryan Hill 30,281 Microsoft Employee Moderator

Hi @Sanil Davis

To update the broader community, the timeout was being caused by the forward request your app service is making to your APIM. That request returns a large response which is taking more than initial timeout of 300 seconds, per stated by @Ben Gimblett . It was advised to improve processing of your request as well as extending the timeout of the request policy.

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GET API timing out after 5 minutes when called via Azure Application

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