Re: HTTP request trigger - MS Flow
Hi @manjotsingh057,
For you first question, if you want to accept parameters through your HTTP endpoint URL, you could customize your trigger's relative path. I have made a test on my side and please take a try with the following workaround:
The flow works successfully as below:
More details about accepting parameters through your HTTP endpoint URL, please check the following article:
Accept parameters through your HTTP endpoint URL
For your second question, the HTTP Request trigger use a Shared Access Signature (SAS) key in the query parameters that are used for authentication. More details about the Shared Access Signature (SAS) key authentication, please check the following article:
What about URL security
For your third question, if you want to make your URL more secure, you could consider make more advanced configuration through API Management. More details about configuring HTTP endpoints further, please check the following article:
Configure HTTP endpoints further
Best regards,
Kris