Desenvolvendo seus aplicativos de forma mais eficiente com as instâncias sem servidor do MongoDB Atlas

1
npm init -y
2
npm install mongodb
3
touch main.js

1
const { MongoClient } = require("mongodb");
2
3
const mongoClient = new MongoClient("MONGODB_URI_HERE");
4
5
(async () => {
6
    try {
7
        await mongoClient.connect();
8
        const database = mongoClient.db("example");
9
        const collection = database.collection("people");
10
        const inserted = await collection.insertOne({
11
            "firstname": "Nic",
12
            "lastname": "Raboy",
13
            "location": "California, USA"
14
        });
15
        const found = await collection.find({ "lastname": "Raboy" }).toArray();
16
        console.log(found);
17
        const deleted = await collection.deleteMany({ "lastname": "Raboy" });
18
    } catch (error) {
19
        console.error(error);
20
    } finally {
21
        mongoClient.close();
22
    }
23
})();

1
const { MongoClient } = require("mongodb");
2
const Express = require("express");
3
const BodyParser = require("body-parser");
4
5
const app = Express();
6
7
app.use(BodyParser.json());
8
9
const mongoClient = new MongoClient("MONGODB_URI_HERE");
10
var database, purchasesCollection, dealsCollection;
11
12
app.get("/deal", async (request, response) => {
13
    try {
14
        const deal = await dealsCollection.findOne({ "date": "2022-10-07" });
15
        response.send(deal || {});
16
    } catch (error) {
17
        response.status(500).send({ "message": error.message });
18
    }
19
});
20
21
app.post("/purchase", async (request, response) => {
22
    try {
23
        if(!request.body) {
24
            throw { "message": "The request body is missing!" };
25
        }
26
        const receipt = await purchasesCollection.insertOne(
27
            { 
28
                "sku": (request.body.sku || "000000"),
29
                "product_name": (request.body.product_name || "Pokemon Scarlet"),
30
                "price": (request.body.price || 59.99),
31
                "customer_name": (request.body.customer_name || "Nic Raboy"),
32
                "purchase_date": "2022-10-07"
33
            }
34
        );
35
        response.send(receipt || {});
36
    } catch (error) {
37
        response.status(500).send({ "message": error.message });
38
    }
39
});
40
41
app.listen(3000, async () => {
42
    try {
43
        await mongoClient.connect();
44
        database = mongoClient.db("example");
45
        dealsCollection = database.collection("deals");
46
        purchasesCollection = database.collection("receipts");
47
        console.log("SERVING AT :3000...");
48
    } catch (error) {
49
        console.error(error);
50
    }
51
});