code: function TistoryStrategy(options, verify) {
    var oauthHost = 'https://www.tistory.com';
    options = options || {};
    options.authorizationURL = options.authorizationURL || oauthHost + '/oauth/authorize';
    options.tokenURL = options.tokenURL || oauthHost + '/oauth/access_token/';
  
    options.customHeaders = options.customHeaders || {};
  
    if (!options.customHeaders['User-Agent']) {
      options.customHeaders['User-Agent'] = options.userAgent || 'passport-tistory';
    }
  
    OAuth2Strategy.call(this, options, verify);
    this.name = 'tistory';
    this._userProfileURL = 'https://www.tistory.com/apis/blog/info?output=json';
    this._oauth2.getOAuthAccessToken = function (code, params, callback) {
      var params = params || {};
      params['client_id'] = this._clientId;
      params['client_secret'] = this._clientSecret;
      var codeParam = (params.grant_type === 'refresh_token') ? 'refresh_token' : 'code';
      params[codeParam] = code;
  
  
      var url = this._getAccessTokenUrl() + "?" + querystring.stringify(params);
  
      request(url, function (error, response, data) {
        if (error) callback(error);
        else {
          var results;
          try {
            // As of http://tools.ietf.org/html/draft-ietf-oauth-v2-07
            // responses should be in JSON
            results = JSON.parse(data);
          }
          catch (e) {
            // .... However both Facebook + Github currently use rev05 of the spec
            // and neither seem to specify a content-type correctly in their response headers :(
            // clients of these services will suffer a *minor* performance cost of the exception
            // being thrown
            results = querystring.parse(data);
          }
          var access_token = results["access_token"];
          var refresh_token = results["refresh_token"];
          delete results["refresh_token"];
          callback(null, access_token, refresh_token, results); // callback results =-=
        }
      });
    }
  
  }
docs: TistoryStrategy 생성자.<br/>
  
  @param options
  @param verify
  
  @constructor