Node & MongoDB - Update Documents

To update documents of a collection, you can use collection.updateOne() or collection.updateMany() methods to update one or multiple documents.

database.collection("sampleCollection").updateOne(query,updates, function(error, result) {
   if (error) throw error;
   console.log('Document Updated');
});
database.collection("sampleCollection").updateMany(query,updates, function(error, result) {
   if (error) throw error;
   console.log(result.result.nModified + " document(s) updated");
});

Example

Try the following example to update a document in a mongodb collection −

Copy and paste the following example as mongodb_example.js −

const MongoClient = require('mongodb').MongoClient;
// Prepare URL
const url = "mongodb://localhost:27017/";
// make a connection to the database
MongoClient.connect(url, function(error, client) {
   if (error) throw error;
   console.log("Connected!");
   // Connect to the database
   const database = client.db('myDb');   database.collection("sampleCollection").updateOne({First_Name:'Mahesh'},
      { $set: { e_mail: 'maheshparashar@gmail.com' } }, function(error, result) {
      if (error) throw error;
      console.log('Document Updated.');
   });   
   // close the connection
   client.close();
});

Output

Execute the mysql_example.js script using node and verify the output.

node mongodb_example.js
Connected!
Document Updated.