lib/agenda/find-and-lock-next-job.ts - use enum ReturnDocument.AFTER …

…from mongodb

lib/agenda/find-and-lock-next-job.ts

@@ -2,6 +2,7 @@ import createDebugger from "debug";
 import { createJob } from "../utils";
 import { Agenda } from ".";
 import { Job } from "../job";
+import { ReturnDocument } from "mongodb";
 
 const debug = createDebugger("agenda:internal:_findAndLockNextJob");
 
@@ -53,13 +54,12 @@ export const findAndLockNextJob = async function (
    * Query used to affect what gets returned
    * @type {{returnOriginal: boolean, sort: object}}
    */
-  const JOB_RETURN_QUERY = { returnDocument: "after", sort: this._sort };
+  const JOB_RETURN_QUERY = { returnDocument: ReturnDocument.AFTER, sort: this._sort };
 
   // Find ONE and ONLY ONE job and set the 'lockedAt' time so that job begins to be processed
   const result = await this._collection.findOneAndUpdate(
     JOB_PROCESS_WHERE_QUERY,
     JOB_PROCESS_SET_QUERY,
-    // @ts-ignore
     JOB_RETURN_QUERY
   );