helper: clean up functions

ui/src/helpers.js

@@ -4,60 +4,6 @@
  * Additional state-less helper methods.
  */
 
-var request_id = 0
-
-/**
- * Makes a AJAX request.
- *
- * @param path The path to connect to.
- * @param successCallback A callback with a JSON payload.
- * @param failCallback A fail callback. Optional.
- * @param data POST data. Optional.
- */
-export function ajax (path, successCallback, failCallback, data) {
-  if (failCallback === undefined) {
-    failCallback = defaultFailHandler
-  }
-
-  console.log('Making HTTP request to ' + path)
-
-  var req = new XMLHttpRequest()
-
-  req.addEventListener('load', function () {
-    // The server can sometimes return a string error. Make sure we handle this.
-    if (this.status === 200 && this.getResponseHeader('Content-Type').indexOf('application/json') !== -1) {
-      successCallback(JSON.parse(this.responseText))
-    } else {
-      failCallback(this.responseText)
-    }
-  })
-  req.addEventListener('error', failCallback)
-
-  req.open(data == null ? 'GET' : 'POST', path + '?nocache=' + request_id++, true)
-  // Rocket only currently supports URL encoded forms.
-  req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
-
-  if (data != null) {
-    var form = ''
-
-    for (var key in data) {
-      if (!Object.prototype.hasOwnProperty.call(data, key)) {
-        continue
-      }
-
-      if (form !== '') {
-        form += '&'
-      }
-
-      form += encodeURIComponent(key) + '=' + encodeURIComponent(data[key])
-    }
-
-    req.send(form)
-  } else {
-    req.send()
-  }
-}
-
 /**
  * Makes a AJAX request, streaming each line as it arrives. Type should be text/plain,
  * each line will be interpreted as JSON separately.
@@ -108,7 +54,7 @@ export function stream_ajax (path, callback, successCallback, failCallback, data
 
   req.addEventListener('error', failCallback)
 
-  req.open(data == null ? 'GET' : 'POST', path + '?nocache=' + request_id++, true)
+  req.open(data == null ? 'GET' : 'POST', path + '?nocache=' + Date.now(), true)
   // Rocket only currently supports URL encoded forms.
   req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded')
 
@@ -132,13 +78,3 @@ export function stream_ajax (path, callback, successCallback, failCallback, data
     req.send()
   }
 }
-
-/**
- * The default handler if a AJAX request fails. Not to be used directly.
- *
- * @param e The XMLHttpRequest that failed.
- */
-function defaultFailHandler (e) {
-  console.error('A AJAX request failed, and was not caught:')
-  console.error(e)
-}