MERN stack - Part 1: create a MongoDB database
Veröffentlicht am: 24. März 2020
Lesedauer: 1 Min.
Install dependencies
npm i mongodb
const { MongoClient } = require('mongodb');
async function main() {
/**
* Connection URI. Update <username>, <password>, and <your-cluster-url> to reflect your cluster.
* See https://docs.mongodb.com/ecosystem/drivers/node/ for more details
*/
const uri = "mongodb+srv://username:password@cluster0-n3aik.mongodb.net/test?retryWrites=true&w=majority";
/**
* The Mongo Client you will use to interact with your database
* See https://mongodb.github.io/node-mongodb-native/3.3/api/MongoClient.html for more details
*/
const client = new MongoClient(uri);
try {
// Connect to the MongoDB cluster
await client.connect();
// Make the appropriate DB calls
await listDatabases(client);
} catch (e) {
console.error(e);
} finally {
// Close the connection to the MongoDB cluster
await client.close();
}
}
main().catch(console.error);
/**
* Print the names of all available databases
* @param {MongoClient} client A MongoClient that is connected to a cluster
*/
async function listDatabases(client) {
databasesList = await client.db().admin().listDatabases();
console.log("Databases:");
databasesList.databases.forEach(db => console.log(` - ${db.name}`));
};
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