Remove unsupported db options from mongo connection (#2)

* Remove unsupported db options from mongo connection

* Add maxTimeMS to filter list

Author: omairvaiyani

spec/GridFSBucketStorageAdapter.spec.js

@@ -32,7 +32,11 @@ describe_only_db('mongo')('GridFSBucket', () => {
 
     const db = await gfsAdapter._connect();
     const status = await db.admin().serverStatus();
+
+    // connection will fail if unsupported keys are
+    // passed into the mongo connection options
     expect(status.connections.current > 0).toEqual(true);
+
     expect(db.options?.retryWrites).toEqual(true);
   });
 

src/Adapters/Files/GridFSBucketAdapter.js

@@ -20,7 +20,7 @@ export class GridFSBucketAdapter extends FilesAdapter {
 
   constructor(
     mongoDatabaseURI = defaults.DefaultMongoURI,
-    mongoOptions = {},
+    databaseOptions = {},
     encryptionKey = undefined
   ) {
     super();
@@ -38,11 +38,11 @@ export class GridFSBucketAdapter extends FilesAdapter {
       useNewUrlParser: true,
       useUnifiedTopology: true,
     };
-    const _mongoOptions = Object.assign(defaultMongoOptions, mongoOptions);
+    const mongoOptions = { ...databaseOptions };
     for (const key of ['enableSchemaHooks', 'schemaCacheTtl', 'maxTimeMS']) {
-      delete _mongoOptions[key];
+      delete mongoOptions[key];
     }
-    this._mongoOptions = _mongoOptions;
+    this._mongoOptions = Object.assign(defaultMongoOptions, mongoOptions);
   }
 
   _connect() {