Instâncias sem servidor do MongoDB Atlas: início rápido

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const  MongoClient  =  require('mongodb').MongoClient;
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const  uri  =  "mongodb+srv://mongo:<password>@serverlessinstance0.xsel4.mongodb.net/myFirstDatabase?retryWrites=true&w=majority";
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const  client  =  new  MongoClient(uri, { useNewUrlParser:  true, useUnifiedTopology:  true });
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client.connect(err  => {
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    const  collection  =  client.db("test").collection("devices");
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    // perform actions on the collection object
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    client.close();
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});

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client.connect((err) => {
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    const  collection  =  client.db("store").collection("products");
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    collection
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        .insertOne(
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        {
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            name:  "JavaScript T-Shirt",
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            category:  "T-Shirts",
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        })
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        .then(() => {
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            client.close();
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        });
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});

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collection
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    .insertMany([
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    {
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        name:  "React T-Shirt",
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        category:  "T-Shirts",
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    },
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    {
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        name:  "Vue T-Shirt",
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        category:  "T-Shirts",
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    }
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    ])
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    .then(() => {
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        client.close();
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    });

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client.connect((err) => {
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    const  collection  =  client.db("store").collection("products");
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    collection.find().toArray((err, result) =>  console.log(result))
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    .then(() => {
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        client.close();
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    });
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});

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client.connect((err) => {
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    const  collection  =  client.db("store").collection("products");
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    collection.find({name: “React T-Shirt”}).toArray((err, result) =>  console.log(result))
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    .then(() => {
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        client.close();
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    });
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});

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client.connect((err) => {
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    const  collection  =  client.db("store").collection("products");
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    collection.updateOne(
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        { name:  "Awesome React T-Shirt" },
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        { $set: { name:  "React T-Shirt" } }
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    )
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    .then(() => {
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        client.close();
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    });
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});

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client.connect((err) => {
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    const  collection  =  client.db("store").collection("products");
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    collection.deleteOne({ name:  "Vue T-Shirt" }).then(() =>  client.close());
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});