To disable server certificate validation in azure logic app

Sanjeev KUMAR 27

Hi All,
Is there anyway to disable Server certificate validation in azure logic apps for a Rest api.
Overview: We have an on-premise API which we are calling using Custom connector(since it is on-premise, using api gateway) but it is throwing error.
Same API when we call as rest connection in azure data factory we get the same error. Then we have disable server certificate validation and our API started working as expected.

Krish G 2,326 Reputation points

2020-08-03T16:07:26.04+00:00

Hello @Sanjeev KUMAR , there is no way you can disable certificate validation for https. What is the error you are getting?
Sanjeev KUMAR 27 Reputation points

2020-08-07T11:53:51.01+00:00

Hi @KrishnenduGhosh-MSFT : Same error we were getting when tried to call via postman but after we disable the certificate it succeeded. Our API is on premise. below is the error we are getting from logic apps

{
"status": 500,
"message": "Received error payload from gateway service with ID 533654: Substituted: HttpRequestException:<pi>System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.\r\n at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult at

1 answer

Krish G 2,326 Reputation points

2020-08-07T12:15:35.6+00:00

@Sanjeev KUMAR , Thanks for the details. Since you can not disable certificate validation in Logic App connector, I would suggest you to work with your on-premise API team to look into fixing the SSL certificate at their end. It could be the certificate CN is not matching with the API domain name, or root CA is not trusted, or cert might have expired, or CRL not accessible from internet.
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Sanjeev KUMAR 27 Reputation points

2020-08-07T14:30:39.303+00:00

@KrishnenduGhosh-MSFT : Ok Sure. Let me discuss with them. I was wondering if Azure logic apps can have similar functionality to what Rest API has in Azure data factory
Thank you for your answer

Krish G 2,326 Reputation points

2020-08-07T15:45:08.847+00:00

I am also wondering you mentioned that you have api gateway in between. Is that Azure APIM or something else?

Vijay Krishnamoorthy 11 Reputation points

2021-09-28T07:19:58.753+00:00

@Sanjeev KUMAR , Hi. I'm facing the same issue. You were able to sort this out?

BeeCee 1 Reputation point

2022-04-28T04:59:21.433+00:00

Hi All,
Having same issue with Logic App failing when calling client API due to expired certificate. I need logic app to ignore the certificate error.
Please help.
Thanks
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