diff --git a/lib/main.js b/lib/main.js
index a8455b0..0404f4c 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -285,6 +285,34 @@ exports.init = function (host, defaultOptions, defaultParams) {
     return url;
   }
 
+  var getCrumb = function getCrumb(requestOptions, callback) {
+    var urlPattern = ['/crumbIssuer/api/json'];
+    var url = formatUrl.apply(null, urlPattern);
+
+    if (!requestOptions.method === 'POST' && !requestOptions.method === 'DELETE') {
+      return callback();
+    }
+
+    var getCrumbOptions = Object.assign({
+      method: 'GET',
+      url: url,
+      headers: [],
+      followAllRedirects: true
+    }, { headers: { 'Content-Type': 'application/json' } });
+
+    request(getCrumbOptions, function (error, response, body) {
+      if (error || response.statusCode !== HTTP_CODE_200 || response.should !== HTTP_CODE_201 || response.should !== HTTP_CODE_302) {
+        return callback(null);
+      }
+
+      var getCrumbResponse = JSON.parse(body);
+      var crumb = {};
+
+      crumb[getCrumbResponse.crumbRequestField] = getCrumbResponse.crumb;
+      callback(null, crumb);
+    });
+  };
+
   /**
    * Run the actual HTTP request.
    *
@@ -318,38 +346,51 @@ exports.init = function (host, defaultOptions, defaultParams) {
       body: null
     }, options.request);
 
-    // Do the request
-    request(requestOptions, function (error, response, body) {
-      if (error) {
-        callback(error, response);
+    //  Get Crumb if POST ? DELETE?
+    getCrumb(requestOptions, function (err, crumb) {
+
+      if (err) {
+        callback(err);
         return;
       }
 
-      if (Array.isArray(options.successStatusCodes) && !options.successStatusCodes.includes(response.statusCode) || Array.isArray(options.failureStatusCodes) && options.failureStatusCodes.includes(response.statusCode)) {
-        callback('Server returned unexpected status code: ' + response.statusCode, response);
-        return;
+      // Do the request
+      if (crumb) {
+        Object.assign(requestOptions.headers, crumb);
       }
 
-      if (options.noparse) {
-        // Wrap body in the response object
-        if (typeof body === 'string') {
-          body = { body: body };
+      request(requestOptions, function (error, response, body) {
+        if (error) {
+          callback(error, response);
+          return;
         }
 
-        // Add location
-        var location = response.headers.Location || response.headers.location;
-
-        if (location) {
-          body.location = location;
+        if (Array.isArray(options.successStatusCodes) && !options.successStatusCodes.includes(response.statusCode) || Array.isArray(options.failureStatusCodes) && options.failureStatusCodes.includes(response.statusCode)) {
+          callback('Server returned unexpected status code: ' + response.statusCode, response);
+          return;
         }
 
-        // Add status code
-        body.statusCode = response.statusCode;
+        if (options.noparse) {
+          // Wrap body in the response object
+          if (typeof body === 'string') {
+            body = { body: body };
+          }
 
-        callback(null, body);
-      } else {
-        tryParseJson(body, options.bodyProp, callback);
-      }
+          // Add location
+          var location = response.headers.Location || response.headers.location;
+
+          if (location) {
+            body.location = location;
+          }
+
+          // Add status code
+          body.statusCode = response.statusCode;
+
+          callback(null, body);
+        } else {
+          tryParseJson(body, options.bodyProp, callback);
+        }
+      });
     });
   };
 
@@ -363,6 +404,10 @@ exports.init = function (host, defaultOptions, defaultParams) {
      *
      * Return queue location of newly-created job as per
      * https://issues.jenkins-ci.org/browse/JENKINS-12827?focusedCommentId=201381#comment-201381
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
      */
     build: function build(jobName, customParams, callback) {
       var _doArgs3 = doArgs(arguments, ['string', ['object', {}], 'function']);
@@ -394,7 +439,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** */
+    /**
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     build_with_params: function build_with_params(jobName, customParams, callback) {
       var _doArgs5 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -425,7 +475,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** */
+    /**
+     *
+     * @param {string} jobName
+     * @param {string} buildNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     stop_build: function stop_build(jobName, buildNumber, customParams, callback) {
       var _doArgs7 = doArgs(arguments, ['string', 'string|number', ['object', {}], 'function']);
 
@@ -453,7 +509,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Get the output for a job's build */
+    /**
+     * Get the output for a job's build
+     *
+     * @param {string} jobName
+     * @param {string} buildNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     console_output: function console_output(jobName, buildNumber, customParams, callback) {
       var _doArgs9 = doArgs(arguments, ['string', 'string|number', ['object', {}], 'function']);
 
@@ -471,7 +534,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get information for the last build of a job */
+    /**
+     * Get information for the last build of a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     last_build_info: function last_build_info(jobName, customParams, callback) {
       var _doArgs11 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -487,7 +556,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get information for the last completed build of a job */
+    /**
+     * Get information for the last completed build of a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     last_completed_build_info: function last_completed_build_info(jobName, customParams, callback) {
       var _doArgs13 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -503,7 +578,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get information for the build number of a job */
+    /**
+     * Get information for the build number of a job
+     *
+     * @param {string} jobName
+     * @param {string} buildNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     build_info: function build_info(jobName, buildNumber, customParams, callback) {
       var _doArgs15 = doArgs(arguments, ['string', 'string|number', ['object', {}], 'function']);
 
@@ -520,7 +602,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get information for the all builds */
+    /**
+     * Get information for the all builds
+     *
+     * @param {string} jobName
+     * @param {string} param
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     all_builds: function all_builds(jobName, param, customParams, callback) {
 
       // TODO better name and handle the "param" ???
@@ -538,7 +627,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get the test results for the build number of a job */
+    /**
+     * Get the test results for the build number of a job
+     *
+     * @param {string} jobName
+     * @param {string} buildNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     test_result: function test_result(jobName, buildNumber, customParams, callback) {
       var _doArgs19 = doArgs(arguments, ['string', 'string|number', ['object', {}], 'function']);
 
@@ -555,9 +651,15 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get the last build report for a job.
+    /**
+     * Get the last build report for a job.
      * @obsolete Use <code>last_build_info</code> instead.
-     * Probly will make this to return the test result. */
+     * Probly will make this to return the test result.
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     last_build_report: function last_build_report(jobName, customParams, callback) {
       this.last_build_info(jobName, customParams, callback);
       //  doRequest({
@@ -565,7 +667,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       //  }, customParams, callback);
     },
 
-    /** Deletes build data for certain job */
+    /**
+     * Deletes build data for certain job
+     *
+     * @param {string} jobName
+     * @param {string} buildNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     delete_build: function delete_build(jobName, buildNumber, customParams, callback) {
       var _doArgs21 = doArgs(arguments, ['string', 'string|number', ['object', {}], 'function']);
 
@@ -595,7 +704,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
     |*              Jobs                 *|
     \*************************************/
 
-    /** Return a list of object literals containing the name and color of all jobs on the Jenkins server */
+    /**
+     * Return a list of object literals containing the name and color of all jobs on the Jenkins server
+     *
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     all_jobs: function all_jobs(customParams, callback) {
       var _doArgs23 = doArgs(arguments, [['object', {}], 'function']);
 
@@ -611,7 +725,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get jobs config in xml */
+    /**
+     * Get jobs config in xml
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     get_config_xml: function get_config_xml(jobName, customParams, callback) {
       var _doArgs25 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -635,7 +755,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Update a job config xml by passing it through your modifyFunction. */
+    /**
+     * Update a job config xml by passing it through your modifyFunction.
+     *
+     * @param {string} jobName
+     * @param {function} modifyFunction
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     update_config: function update_config(jobName, modifyFunction, customParams, callback) {
       var _doArgs27 = doArgs(arguments, ['string', 'function', ['object', {}], 'function']);
 
@@ -662,7 +789,14 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Update a existing job based on a jobConfig xml string */
+    /**
+     * Update a existing job based on a jobConfig xml string
+     *
+     * @param {string} jobName
+     * @param {string} jobConfig
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     update_job: function update_job(jobName, jobConfig, customParams, callback) {
       var _doArgs29 = doArgs(arguments, ['string', 'string', ['object', {}], 'function']);
 
@@ -693,7 +827,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Get all information for a job */
+    /**
+     * Get all information for a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     job_info: function job_info(jobName, customParams, callback) {
       var _doArgs31 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -704,12 +844,21 @@ exports.init = function (host, defaultOptions, defaultParams) {
       callback = _doArgs32[2];
 
 
-      doRequest({
+      var params = {
         urlPattern: [JOB_INFO, jobName]
-      }, customParams, callback);
+      };
+
+      doRequest(params, customParams, callback);
     },
 
-    /** Create a new job based on a jobConfig string */
+    /**
+     * Create a new job based on a jobConfig string
+     *
+     * @param {string} jobName
+     * @param {string} jobConfig
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     create_job: function create_job(jobName, jobConfig, customParams, callback) {
 
       // Set the created job name!
@@ -742,7 +891,16 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Copies a job and allows you to pass in a function to modify the configuration of the job you would like to copy */
+    /**
+     * Copies a job and allows you to pass in a function to modify the configuration
+     * of the job you would like to copy
+     *
+     * @param {string} jobName
+     * @param {string} newJobName
+     * @param {function} modifyFunction
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     copy_job: function copy_job(jobName, newJobName, modifyFunction, customParams, callback) {
       var _doArgs35 = doArgs(arguments, ['string', 'string', 'function', ['object', {}], 'function']);
 
@@ -770,7 +928,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Deletes a job */
+    /**
+     * Deletes a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     delete_job: function delete_job(jobName, customParams, callback) {
       var _doArgs37 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -794,7 +958,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Disables a job */
+    /**
+     * Disables a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     disable_job: function disable_job(jobName, customParams, callback) {
       var _doArgs39 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -820,7 +990,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Enables a job */
+    /**
+     * Enables a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     enable_job: function enable_job(jobName, customParams, callback) {
       var _doArgs41 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -846,7 +1022,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** Get the last build report for a job */
+    /**
+     * Get the last build report for a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     last_success: function last_success(jobName, customParams, callback) {
       var _doArgs43 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -863,7 +1045,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get the last result for a job */
+    /**
+     * Get the last result for a job
+     *
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     last_result: function last_result(jobName, customParams, callback) {
       var _doArgs45 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -892,7 +1080,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
     |*              Queues               *|
     \*************************************/
 
-    /** Get all queued items */
+    /**
+     * Get all queued items
+     *
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     queue: function queue(customParams, callback) {
       var _doArgs47 = doArgs(arguments, [['object', {}], 'function']);
 
@@ -907,7 +1100,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** Get one queued item */
+    /**
+     * Get one queued item
+     *
+     * @param {string} queueNumber
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     queue_item: function queue_item(queueNumber, customParams, callback) {
       var _doArgs49 = doArgs(arguments, ['string|number', ['object', {}], 'function']);
 
@@ -917,13 +1116,18 @@ exports.init = function (host, defaultOptions, defaultParams) {
       customParams = _doArgs50[1];
       callback = _doArgs50[2];
 
-
       doRequest({
         urlPattern: [QUEUE_ITEM, queueNumber]
       }, customParams, callback);
     },
 
-    /** Cancel a queued item */
+    /**
+     * Cancel a queued item
+     *
+     * @param {string} itemId
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     cancel_item: function cancel_item(itemId, customParams, callback) {
       var _doArgs51 = doArgs(arguments, ['string|number', ['object', {}], 'function']);
 
@@ -946,7 +1150,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
     |*            Computers              *|
     \*************************************/
 
-    /** Get info about all jenkins workers including currently executing jobs */
+    /**
+     * Get info about all jenkins workers including currently executing jobs
+     *
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     computers: function computers(customParams, callback) {
       var _doArgs53 = doArgs(arguments, [['object', {}], 'function']);
 
@@ -965,7 +1174,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
     |*              Views                *|
     \*************************************/
 
-    /** Return a list of all the views on the Jenkins server */
+    /**
+     * Return a list of all the views on the Jenkins server
+     *
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     all_views: function all_views(customParams, callback) {
       var _doArgs55 = doArgs(arguments, [['object', {}], 'function']);
 
@@ -981,7 +1195,13 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /** */
+    /**
+     *
+     * @param {string} viewName
+     * @param {string|undefined} mode
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     create_view: function create_view(viewName, mode, customParams, callback) {
       var _doArgs57 = doArgs(arguments, ['string', ['string', 'hudson.model.ListView'], ['object', {}], 'function']);
 
@@ -1015,23 +1235,34 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** */
-    view_info: function view_info(viewId, customParams, callback) {
+    /**
+     * @param {string} viewName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
+    view_info: function view_info(viewName, customParams, callback) {
       var _doArgs59 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
       var _doArgs60 = _slicedToArray(_doArgs59, 3);
 
-      viewId = _doArgs60[0];
+      viewName = _doArgs60[0];
       customParams = _doArgs60[1];
       callback = _doArgs60[2];
 
 
       doRequest({
-        urlPattern: [VIEW_INFO, viewId]
+        urlPattern: [VIEW_INFO, viewName]
       }, customParams, callback);
     },
 
-    /** Update a view based on a viewConfig object */
+    /**
+     * Update a view based on a viewConfig object
+     *
+     * @param {string} viewName
+     * @param {object} viewConfig
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     update_view: function update_view(viewName, viewConfig, customParams, callback) {
       var _doArgs61 = doArgs(arguments, ['string', 'object', ['object', {}], 'function']);
 
@@ -1064,7 +1295,11 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** */
+    /**
+     * @param {string} viewName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     delete_view: function delete_view(viewName, customParams, callback) {
       var _doArgs63 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
@@ -1088,13 +1323,18 @@ exports.init = function (host, defaultOptions, defaultParams) {
       });
     },
 
-    /** */
-    add_job_to_view: function add_job_to_view(viewId, jobName, customParams, callback) {
+    /**
+     * @param {string} viewName
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
+    add_job_to_view: function add_job_to_view(viewName, jobName, customParams, callback) {
       var _doArgs65 = doArgs(arguments, ['string', 'string', ['object', {}], 'function']);
 
       var _doArgs66 = _slicedToArray(_doArgs65, 4);
 
-      viewId = _doArgs66[0];
+      viewName = _doArgs66[0];
       jobName = _doArgs66[1];
       customParams = _doArgs66[2];
       callback = _doArgs66[3];
@@ -1104,18 +1344,23 @@ exports.init = function (host, defaultOptions, defaultParams) {
 
       doRequest({
         method: 'POST',
-        urlPattern: [VIEW_ADD_JOB, viewId],
+        urlPattern: [VIEW_ADD_JOB, viewName],
         noparse: true
       }, customParams, callback);
     },
 
-    /** */
-    remove_job_from_view: function remove_job_from_view(viewId, jobName, customParams, callback) {
+    /**
+     * @param {string} viewName
+     * @param {string} jobName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
+    remove_job_from_view: function remove_job_from_view(viewName, jobName, customParams, callback) {
       var _doArgs67 = doArgs(arguments, ['string', 'string', ['object', {}], 'function']);
 
       var _doArgs68 = _slicedToArray(_doArgs67, 4);
 
-      viewId = _doArgs68[0];
+      viewName = _doArgs68[0];
       jobName = _doArgs68[1];
       customParams = _doArgs68[2];
       callback = _doArgs68[3];
@@ -1125,24 +1370,30 @@ exports.init = function (host, defaultOptions, defaultParams) {
 
       doRequest({
         method: 'POST',
-        urlPattern: [VIEW_REMOVE_JOB, viewId],
+        urlPattern: [VIEW_REMOVE_JOB, viewName],
         noparse: true
       }, customParams, callback);
     },
 
-    /* Return a list of objet literals containing the name and color of all the jobs for a view on the Jenkins server */
-    all_jobs_in_view: function all_jobs_in_view(viewId, customParams, callback) {
+    /**
+     * Return a list of objet literals containing the name and color of all the jobs for a view on the Jenkins server
+     *
+     * @param {string} viewName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
+    all_jobs_in_view: function all_jobs_in_view(viewName, customParams, callback) {
       var _doArgs69 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
       var _doArgs70 = _slicedToArray(_doArgs69, 3);
 
-      viewId = _doArgs70[0];
+      viewName = _doArgs70[0];
       customParams = _doArgs70[1];
       callback = _doArgs70[2];
 
 
       doRequest({
-        urlPattern: [VIEW_INFO, viewId],
+        urlPattern: [VIEW_INFO, viewName],
         bodyProp: 'jobs'
       }, customParams, callback);
     },
@@ -1151,7 +1402,12 @@ exports.init = function (host, defaultOptions, defaultParams) {
     |*             Plugins               *|
     \*************************************/
 
-    /* Get all installed plugins */
+    /**
+     * Get all installed plugins
+     *
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
     all_installed_plugins: function all_installed_plugins(customParams, callback) {
       var _doArgs71 = doArgs(arguments, [['object', {}], 'function']);
 
@@ -1171,18 +1427,24 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /* Install a plugin */
-    install_plugin: function install_plugin(plugin, customParams, callback) {
+    /**
+     * Install a plugin
+     *
+     * @param {string} pluginName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
+     */
+    install_plugin: function install_plugin(pluginName, customParams, callback) {
       var _doArgs73 = doArgs(arguments, ['string', ['object', {}], 'function']);
 
       var _doArgs74 = _slicedToArray(_doArgs73, 3);
 
-      plugin = _doArgs74[0];
+      pluginName = _doArgs74[0];
       customParams = _doArgs74[1];
       callback = _doArgs74[2];
 
 
-      var body = '<jenkins><install plugin="' + plugin + '" /></jenkins>';
+      var body = '<jenkins><install plugin="' + pluginName + '" /></jenkins>';
 
       doRequest({
         method: 'POST',
@@ -1196,10 +1458,16 @@ exports.init = function (host, defaultOptions, defaultParams) {
       }, customParams, callback);
     },
 
-    /* Create a new folder
-     * Needs Folder plugin in Jenkins: https://wiki.jenkins-ci.org/display/JENKINS/CloudBees+Folders+Plugin
-     *  curl -XPOST 'http://jenkins/createItem?name=FolderName&mode=com.cloudbees.hudson.plugins.folder.Folder&from=&json=%7B%22name%22%3A%22FolderName%22%2C%22mode%22%3A%22com.cloudbees.hudson.plugins.folder.Folder%22%2C%22from%22%3A%22%22%2C%22Submit%22%3A%22OK%22%7D&Submit=OK' --user user.name:YourAPIToken -H "Content-Type:application/x-www-form-urlencoded"
-     *  https://gist.github.com/stuart-warren/7786892
+    /**
+     * Create a new folder with given name
+     *
+     * Requires Folder plugin in Jenkins:
+     * @see https://wiki.jenkins-ci.org/display/JENKINS/CloudBees+Folders+Plugin
+     * @see https://gist.github.com/stuart-warren/7786892
+     *
+     * @param {string} folderName
+     * @param {object|undefined} customParams is optional
+     * @param {function} callback
      */
     create_folder: function create_folder(folderName, customParams, callback) {
       var _doArgs75 = doArgs(arguments, ['string', ['object', {}], 'function']);
diff --git a/src/main.js b/src/main.js
index 085dcf6..7f3c658 100644
--- a/src/main.js
+++ b/src/main.js
@@ -228,6 +228,35 @@ exports.init = function (host, defaultOptions, defaultParams) {
     return url;
   }
 
+  const getCrumb = function (requestOptions, callback) {
+    const urlPattern = ['/crumbIssuer/api/json'];
+    const url = formatUrl.apply(null, urlPattern);
+
+    if (!requestOptions.method === 'POST' && !requestOptions.method === 'DELETE') {
+      return callback();
+    }
+
+    const getCrumbOptions = Object.assign({
+      method: 'GET',
+      url: url,
+      headers: [],
+      followAllRedirects: true,
+    }, { headers: { 'Content-Type': 'application/json' } });
+
+    request(getCrumbOptions, function(error, response, body) {
+      if (error || response.statusCode !== HTTP_CODE_200
+        || response.should !== HTTP_CODE_201 || response.should !== HTTP_CODE_302 ) {
+        return callback(null);
+      }
+
+      const getCrumbResponse = JSON.parse(body);
+      const crumb = {};
+
+      crumb[getCrumbResponse.crumbRequestField] = getCrumbResponse.crumb;
+      callback(null, crumb);
+    });
+  };
+
   /**
    * Run the actual HTTP request.
    *
@@ -261,40 +290,54 @@ exports.init = function (host, defaultOptions, defaultParams) {
       body: null
     }, options.request);
 
-    // Do the request
-    request(requestOptions, function (error, response, body) {
-      if (error) {
-        callback(error, response);
+    //  Get Crumb if POST ? DELETE?
+    getCrumb(requestOptions, function (err, crumb) {
+
+      if (err) {
+        callback(err);
         return;
       }
 
-      if ((Array.isArray(options.successStatusCodes) && !options.successStatusCodes.includes(response.statusCode))
-        || (Array.isArray(options.failureStatusCodes) && options.failureStatusCodes.includes(response.statusCode))) {
-        callback(`Server returned unexpected status code: ${response.statusCode}`, response);
-        return;
+      // Do the request
+      if (crumb) {
+        Object.assign(requestOptions.headers, crumb);
       }
 
-      if (options.noparse) {
-        // Wrap body in the response object
-        if (typeof body === 'string') {
-          body = { body: body };
+      request(requestOptions, function (error, response, body) {
+        if (error) {
+          callback(error, response);
+          return;
         }
 
-        // Add location
-        const location = response.headers.Location || response.headers.location;
-
-        if (location) {
-          body.location = location;
+        if ((Array.isArray(options.successStatusCodes) && !options.successStatusCodes.includes(response.statusCode))
+          || (Array.isArray(options.failureStatusCodes) && options.failureStatusCodes.includes(response.statusCode))) {
+          callback(`Server returned unexpected status code: ${response.statusCode}`, response);
+          return;
         }
 
-        // Add status code
-        body.statusCode = response.statusCode;
+        if (options.noparse) {
+          // Wrap body in the response object
+          if (typeof body === 'string') {
+            body = { body: body };
+          }
 
-        callback(null, body);
-      } else {
-        tryParseJson(body, options.bodyProp, callback);
-      }
+          // Add location
+          const location = response.headers.Location || response.headers.location;
+
+          if (location) {
+            body.location = location;
+          }
+
+          // Add status code
+          body.statusCode = response.statusCode;
+
+          callback(null, body);
+        } else {
+          tryParseJson(body, options.bodyProp, callback);
+        }
+      });
     });
+
   };
 
   return {
@@ -636,9 +679,11 @@ exports.init = function (host, defaultOptions, defaultParams) {
     job_info: function (jobName, customParams, callback) {
       [jobName, customParams, callback] = doArgs(arguments, ['string', ['object', {}], 'function']);
 
-      doRequest({
+      const params = {
         urlPattern: [JOB_INFO, jobName]
-      }, customParams, callback);
+      };
+
+      doRequest(params, customParams, callback);
     },
 
     /**
@@ -842,7 +887,6 @@ exports.init = function (host, defaultOptions, defaultParams) {
      */
     queue_item: function (queueNumber, customParams, callback) {
       [queueNumber, customParams, callback] = doArgs(arguments, ['string|number', ['object', {}], 'function']);
-
       doRequest({
         urlPattern: [QUEUE_ITEM, queueNumber]
       }, customParams, callback);