Thank you but when I try to include oauth_callback while creating the signature string and also in the header which I am posting to the api, its giving me authentication error : unauthorised.
If I do not include the oauth_callback then everything is working fine except that I am not getting token and verifier in the redirect_url.
Oauth_callback= https%3A%2F%2Fsites.google.com%2Fsite%2Fkejalmemorial
I would be really thankful if you could help me with this.
thank you.