CODEWITHSUNDEEP
node.js
sam
sam

Reputation: 33

How can I get all mongoDB collection names using Node.js code?

I want to store all collection names of MongoDB in a variable/array. How can I write nodeJS code to do that?

Upvotes: 2

Views: 3503

Answers (2)

lefrost
lefrost

Reputation: 581

await db.listCollections().toArray().map(c => c.name);

This returns a string array containing the name of every collection.

Upvotes: -1

Sohail
Sohail

Reputation: 597

  1. create a connection by providing connection url.
  2. create a client to db using database name client.db(dbName);
  3. call listCollections method to get detail info of each collection.

  4. finally filter and push the required information and close the connection.

    const mongo = require('mongodb').MongoClient;
mongo.connect(connectionUrl, function(err, client) {
let allCollections = [];
//create client by providing database name
const db = client.db(dbName);
db.listCollections().toArray(function(err, collections) {
    if(err) console.log(err);
    //iterate to each collection detail and push just name in array
    collections.forEach(eachCollectionDetails => {
        allCollections.push(eachCollectionDetails.name);
    });
    //close client
    client.close();
 });
});

Upvotes: 4

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