Magic Link 2

/**
 * @Post("/magic_link_signup")
 */
function magicLinkSignUp($request) {
  // get the query parameters from the post request
  $queryParams = $request->query()->all();
  
  // get the token from queryParams
  // this $token is the same $randomString that was
  // generated in Step 1
  $token = $queryParamas['token'];
  
  // use the same function as in Step 1 to generate
  // hashed value of the $randomString
  $maskedRandomString = generateMaskedRandomString($token);
  
  // query the database to get the information regarding
  // this $maskedRandomString
  $magicLink = (select * from magic_links
  where masked_random_string = $maskedRandomString);
  
  $mobileNumber = $magicLink['mobile_number'];
  $targetURL = $magicLink['target_screen'];

  // get the user info of this mobile_number from your
  // user's database table
  $userInfo = (select * from users where
  mobile_number = $mobileNumber);
  
  // if the user doesn't exist, create one in
  // the users table of your database
  
  // now create session for this User
  setSession($userInfo);

  // set cookies (if any) for this User
  setCookies($userInfo);
  
  // now redirect the user with logged in
  // session and set cookies to the target screen
  redirect($targetURL); 
}