Beth Griggs
30 lines
776 B
JavaScript
30 lines
776 B
JavaScript
const MongoClient = require("mongodb").MongoClient;
|
|
const URL = "mongodb://localhost:27017/";
|
|
|
|
MongoClient.connect(URL, { useUnifiedTopology: true }, (err, client) => {
|
|
if (err) throw err;
|
|
|
|
const db = client.db("data");
|
|
const values = db.collection("values");
|
|
const averages = db.collection("averages");
|
|
|
|
values.find({}).toArray((err, data) => {
|
|
if (err) throw err;
|
|
|
|
// Calculate average
|
|
const average =
|
|
data.reduce((accumulator, value) => accumulator + value.value, 0) /
|
|
data.length;
|
|
|
|
averages.find({}).toArray((err) => {
|
|
if (err) throw err;
|
|
|
|
averages.insertOne({ value: average }, (err) => {
|
|
if (err) throw err;
|
|
console.log("Stored average in database.");
|
|
client.close();
|
|
});
|
|
});
|
|
});
|
|
});
|