Thanks MartinD , It worked.
Actually for the first attempt, I signup with community cisco and tried to get result as
curl --location --request GET 'https://community.cisco.com/api/2.0/search?q=select%20*%20from%20users%20limit%201' and it returned 200 response but empty users data. From documentation, I interpreted as that user data might not be available to anonymous users and hence i signup with them.
But then i was not able to authenticate myself as described in question.
Could you help me with the reason or any findings that why i am not getting users details from cisco community ?
dsharma there are some communitites with this setting set on false
restapi.v2.enable_anon_user_collection_access = false
If this setting is false then an anonymous user can not get the user data if he is not logged in
