let twitter = Twitter.sharedInstance()
    let oauthSigning = TWTROAuthSigning(authConfig:twitter.authConfig, authSession:twitter.session())
    let authHeaders = oauthSigning.OAuthEchoHeadersToVerifyCredentials()
   let request = NSMutableURLRequest(URL: NSURL(string: "https://api.twitter.com/1.1/search/tweets.json?q=Himan_dhawan")!)
    request.allHTTPHeaderFields = authHeaders

let authHeaders = oauthSigning.OAuthEchoHeadersToVerifyCredentials()
let urlHeader: AnyObject? = authHeaders[TWTROAuthEchoAuthorizationHeaderKey]

request.allHTTPHeaderFields = urlHeader