Thank you for your response. I have already used Postman for getting signature and nonce but it only works for that particular user for which we have authenticated from Postman. If I sign in as other user in my app, this signature doesn’t work. It says “Could not authenticate you.”
I just need this for getting user profile which I can easily get from login method of Twitter kit
“TWTRTwitter.sharedInstance().logIn”. But there is also a problem with that which I raised in forum but its not yet answered. Please have a look to that question too.
(Completion block of TWTRTwitter.sharedInstance().logIn does not execute when authenticate with twitter app for iPhone)