1 files changed, 22 insertions, 1 deletions

diff --git a/src/lib/util.js b/src/lib/util.js
index 6de07e5..a4e0025 100644
--- a/src/lib/util.js
+++ b/src/lib/util.js
@@ -5,5 +5,26 @@ module.exports = {
 
     isNumeric(n) {
         return !isNaN(parseFloat(n)) && isFinite(n)
+    },
+
+    /**
+     * Creates a Promise that can be resolved or rejected from the outside
+     *
+     * @param {Function} abortCallback
+     * @return {Promise}
+     */
+    createCallablePromise(abortCallback = null) {
+        let promise, resolve, reject
+        promise = new Promise(function(_resolve, _reject) {
+            resolve = _resolve
+            reject = _reject
+        })
+        promise.resolve = function(result) {
+            resolve(result)
+        }
+        promise.reject = function(result) {
+            reject(result)
+        }
+        return promise
     }
-}
\ No newline at end of file
+}