Share via

Azure APIM custom connector returns empty body response in Power Apps

Ershad Nozari 426 Reputation points
2022-06-01T04:59:30.353+00:00

I’m going through the wizard to create a custom connector in Power Apps to call a simple Get operation in Azure APIM. I can call the API fine using Postman, Fiddler and CURL. However, when I try to test the connector using the test tab I’m getting a 200 OK but the response body is empty:
207294-image.png

It’s worth mentioning that this issue, with empty response body, occurs only for APIs in Azure APIM. If I hit the backend API, hosted in Azure App Service, without going through Azure APIM I’m receiving a response body. I have tested with other public APIs on the internet which works fine as well. The problem with empty response seems to have something to do with the integration between Power Apps and Azure APIM.

Any assistance is highly appreciated.

Azure API Management
Azure API Management
An Azure service that provides a hybrid, multi-cloud management platform for APIs.
2,385 questions
0 comments

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Ershad Nozari 426 Reputation points
    2022-06-02T04:48:54.067+00:00

    With the help of Azure Application Insights logs, I discovered that this is ralated to CORS. To resolve the issue, I added the https://flow.microsoft.com to Azure APIM CORS policy to allow calls from the PowerApps test console to come through, like so:

    207742-image.png

    2 people found this answer helpful.

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.