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Cast to ObjectId failed for value in MongoDB?
To cast to ObjectId correctly, use aggregate() in MongoDB. Let us create a collection with documents −
> db.demo460.insertOne({"_id":"5ab9cbfa31c2ab715d42129e"});
{ "acknowledged" : true, "insertedId" : "5ab9cbfa31c2ab715d42129e" }Display all documents from a collection with the help of find() method −
> db.demo460.find();
This will produce the following output −
{ "_id" : "5ab9cbfa31c2ab715d42129e" }Following is the query to cast to objectId −
> db.demo460.aggregate( [ idConvert ])
This will produce the following output −
{ "_id" : "5ab9cbfa31c2ab715d42129e", "value" : ObjectId("5ab9cbfa31c2ab715d42129e") }
Updated on: 11-May-2020
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