diff --git a/src/helpers/constants.js b/src/helpers/constants.js
index f764f8c..a20f485 100644
--- a/src/helpers/constants.js
+++ b/src/helpers/constants.js
@@ -12,4 +12,17 @@ export const defaultSettings = {
   DEFAULT_SETTING_DOCTYPE: 'esqueue',
 };
 
-export default Object.assign({}, jobStatuses, defaultSettings);
\ No newline at end of file
+export const events = {
+  EVENT_QUEUE_ERROR: 'error',
+  EVENT_JOB_CREATED: 'job:created',
+  EVENT_JOB_ERROR: 'job:error',
+  EVENT_WORKER_ERROR: 'worker:error',
+  EVENT_WORKER_JOB_CLAIM_ERROR: 'worker:claim job error',
+  EVENT_WORKER_JOB_SEARCH_ERROR: 'worker:pending jobs error',
+  EVENT_WORKER_JOB_UPDATE_ERROR: 'worker:update job error',
+  EVENT_WORKER_JOB_FAIL_ERROR: 'worker:failed job update error',
+  EVENT_WORKER_JOB_EXECUTION_ERROR: 'worker:job execution error',
+  EVENT_WORKER_JOB_TIMEOUT_ERROR: 'worker:job timeout',
+};
+
+export default Object.assign({}, jobStatuses, defaultSettings, events);
\ No newline at end of file