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Hi
I am attempting to copy API using the REST connector in Data Factory. Can grab a bearer token and then pass this in with Authorization into a copy activity with the source as REST and sink as JSON to store in storage account (using AutoResolve IR). The linked service test for the REST is successful. Also I'm successfully able to "preview data" on source in Copy activity (as well as pull in the schema), however during the debug (and even on a published trigger) run the following error is thrown up:
Authentication failed because the remote party has the transport stream.
I have tried various configurations of authentication and the above occurs for both anonymous and Oauth.
Thanks in advance
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Hello Aaron McKenna,
Welcome to the MS Q&A platform.
The error "Authentication failed because the remote party has the transport stream" is related to SSL certificate validation.
As per the error, the SSL certificate of the REST endpoint is not trusted by the Data Factory. Can you please enable "ServerCertificateValidation" property in the linked service definition to validate the SSL certificate?
Please check the authentication method supported by the REST endpoint and configure the linked service accordingly.
And if the issue still persists, please try using the HTTP connector instead of the REST connector.
I hope this helps. Please let me know if you have any further questions.
Hi
Thanks for the feedback. I forgot to mention I had tried toggling the server cert validation to no success.
What I have found is that the sink was using a linked service on a self-hosted IR. When I changed that to match the AutoResolve IR used on the source (REST API), the copy task succeeded.
Given this, I suspect that it is related to the security protocol on that self-hosted IR.
Is that a possible explanation?
Thanks again
Hello Aaron McKenna,
Yes, one possible reason could be the security protocol on the SHIR is not configured correctly. Do you see any errors(SHIR logs) on the event viewer?
Please check the below troubleshooting guide for SHIR-related issues.