connect mongodb with express js code example
Example 1: connect mongo to express api
//using mongoose
npm i mongoose
const mongoose = require("mongoose");
mongoose
.connect(
"your mongodb URI",
{
useNewUrlParser: true,
useCreateIndex: true,
useFindAndModify: false,
useUnifiedTopology: true,
}
)
.then(() => console.log("mongodb connected"))
.catch((err) => {
console.err(err.message);
process.exit(1);
});
Example 2: how to connect mongodb with node js
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>@<your-cluster-url>/test?retryWrites=true&w=majority";
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 {
await client.close();
}
}
main().catch(console.error);