Error adding API call to Gateway

[Markzolotoy]

I am getting the following while configuring Gateway connection for an API call:

Underlying error message:

The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.

The call looks like this:

Web{"url":"https://computername:446/api/identity"}

Previously I was able to add http calls to the Gateway but not https. Any idea how to make it work?

My Gateway is configured for HTTPS.

It also stops working with the same error if I use the computer name instead of localhost.

Thanks

[v-kkf-msft · Accepted solution]

Hi @Markzolotoy ,

Did you add the certificate of REST API to trusted root store on the server or it is self-signed? Please follow the steps in https://success.outsystems.com/Support/Enterprise_Customers/Installation/Add_self_signed_certificate...  to add certificate to trusted root store.

If the problem is still not resolved, please provide detailed error information or the expected result you expect. Let me know immediately, looking forward to your reply.

Best Regards,
Winniz

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.