add optional debugging output

src/job.js

@@ -1,8 +1,11 @@
 import events from 'events';
 import { isPlainObject } from 'lodash';
+import logger from './helpers/logger';
 import { JOB_STATUS_PENDING } from './helpers/constants';
 import createIndex from './helpers/create_index';
 
+const debug = logger('job');
+
 export default class Job extends events.EventEmitter {
   constructor(client, index, type, payload, timeout = 10000) {
     if (typeof type !== 'string') throw new Error('Type must be a string');
@@ -38,9 +41,11 @@ export default class Job extends events.EventEmitter {
           type: doc._type,
           version: doc._version,
         };
+        debug('Job created', this.document);
       });
     })
     .catch((err) => {
+      debug('Job creation failed', err);
       this.emit('error', err);
       throw err;
     });