question

You first have to authenticate using /login URL like below:

curl -X POST -d '{"username":"admin","password":"test"}' 'http://opescenter:8888/login'

It will give you a session ID to use for the requests you want to make:

{"sessionid": "d6c5e198b9b5ffeab9fd8dea6fb012aa"}

Now, you can use this session ID in HTTP header to call any OpsCenter API:

curl -H 'opscenter-session: d6c5e198b9b5ffeab9fd8dea6fb012aa' http://<opscenterHost>:<port>/<cluster_name>/alert-rules

See the following URL.

https://docs.datastax.com/en/opscenter/6.7/api/docs/authentication.html#authentication

@ratna53_110276 If authentication is enabled on OpsCenter, you will need to authenticate first to obtain a session token like this:

$ curl -X POST -d '{"username":"admin","password":"test"}' 'http://localhost:8888/login'
{"sessionid": "d6c5e198b9b5ffeab9fd8dea6fb012aa"}

You would then include the session ID in the HTTP header when you make API calls like this:

$ curl -H 'opscenter-session: d6c5e198b9b5ffeab9fd8dea6fb012aa' http://localhost:8888/cluster-configs

For more information, see the Authentication page of the OpsCenter API documentation. Cheers!