Twitter API OAuth Parameters and Encryption

gistfile1.txt

STEP 1: OBTAINING A REQUEST TOKEN
  POST https://api.twitter.com/oauth/request_token
    OAuth {
      oauth_nonce,
      oauth_callback,
      oauth_signature_method: "HMAC-SHA1",
      oauth_consumer_key,
      oauth_signature,
      oauth_version: "1.0"
      }
  RESPONSE {
    oauth_token,
    oauth_token_secret,
    oauth_callback_confirmed
    }
    
STEP 2: REDIRECTING THE USER
  GET https://api.twitter.com/oauth/authenticate
    {
      oauth_token
      }
  RESPONSE {
    oauth_token,*
    oauth_verifier
    }
    *verify that it is the same as oauth_token received in step 1
    
STEP 3: CONVERTING THE REQUEST TOKEN TO AN ACCESS TOKEN
  POST https://api.twitter.com/oauth/access_token
    {
      oauth_consumer_key,
      oauth_nonce,
      oauth_signature,
      oauth_signature_method,
      oauth_timestamp,
      oauth_token,*
      oauth_version: "1.0"
      }
    Content-Type: application/x-www-form-urlencoded,
    oauth_verifier
    *Added by signing process?
  RESPONSE {
  oauth_token,
  oauth_token_secret
  }
  
  LIBRAIES/METHODS/DOCS {
    HMAC-SHA1: https://www.npmjs.com/package/crypto-js,
    Timestamp: Date.now(),
    Nonce: {
      https://www.npmjs.com/package/nonce,
      https://www.thepolyglotdeveloper.com/2015/03/create-a-random-nonce-string-using-javascript/
      },
    Signature: https://dev.twitter.com/oauth/overview/creating-signatures
    
  https://www.npmjs.com/package/node-twitter-api
  https://webapplog.com/node-js-oauth1-0-and-oauth2-0-twitter-api-v1-1-examples/
  https://coderwall.com/p/3mcuxq/twitter-and-node-js-application-auth