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How to drop collection in MongoDb using Node.js ?

  • Last Updated : 20 Nov, 2020

MongoDB, the most popular NoSQL database, is an open-source document-oriented database. The term ‘NoSQL’ means ‘non-relational’. It means that MongoDB isn’t based on the table-like relational database structure but provides an altogether different mechanism for storage and retrieval of data. This format of storage is called BSON ( similar to JSON format).

MongoDB Module: This module of Node.js is used for connecting the MongoDB database as well as used for manipulating the collections and databases in MongoDB. The mongodb.connect() method is used for connecting the MongoDB database which is running on a particular server on your machine. (Refer to this article). We can also use promises in this method in resolve the object contains all the methods and properties required for collection manipulation and in reject, the error occurs during connection.

Installing module:

node install mongodb

Project structure:



Running the server on Local IP: Data is the directory where MongoDB server is present.

mongod --dbpath=data --bind_ip 127.0.0.1

MongoDB Database:

Database:GFG
Collection:helloworld

Index.js

Javascript




const MongoClient = require("mongodb");
const databasename = "GFG";// Database name
MongoClient.connect(url).then((client) => {
  
    const connect = client.db(databasename);
  
    // Collection name
    const collection = connect.collection("helloworld");
  
    collection.drop();  // Dropping the collection
  
    console.log("Dropping successful");
}).catch((err) => {
    console.log(err.Message);
})

Output:

MongoDB database:

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