MongoDB query to add multiple documents

To perform multiple write operations, use bulkWrite(). Let us create an array list values. Following is the query −

> const arrayList = [ ...    {"Value1":100, "Value2":200, "Name": "John"}, ...    {"Value1":100, "Value2":200, "Name": "Bob"} ... ]; > let op1 = []; > arrayList.forEach(({ Value1, Value2, Name }) => { ...    op1.push({ ...       "updateOne": { ...          "filter": { Name}, ...          "update": { "$set": { Value1, Value2, Name } }, ...          "upsert": true ...       } ...    }) ... }); > db.demo397.bulkWrite(op1); {    "acknowledged" : true,    "deletedCount" : 0,    "insertedCount" : 0,    "matchedCount" : 0,    "upsertedCount" : 2,    "insertedIds" : {    },    "upsertedIds" : {       "0" : ObjectId("5e5e8c07f995e1718151981c"),       "1" : ObjectId("5e5e8c07f995e1718151981d")    } }

Display all documents from a collection with the help of find() method −

> db.demo397.find();

This will produce the following output −

{ "_id" : ObjectId("5e5e8c07f995e1718151981c"), "Name" : "John", "Value1" : 100, "Value2" : 200 } { "_id" : ObjectId("5e5e8c07f995e1718151981d"), "Name" : "Bob", "Value1" : 100, "Value2" : 200 }