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generate functionMon, 13 Feb 2023

node.jsとexpressでサーバーを起動し、ユーザからボタンをクリックされるたびに、データベースの閲覧者項目の値をインクリメントする

const express = require('express'); const mongoose = require('mongoose'); const app = express(); const port = 3000 const url = 'mongodb://localhost:27017/express-app'; const options = { useNewUrlParser: true, useUnifiedTopology: true, useFindAndModify: false, useCreateIndex: true }; mongoose.connect(url, options); const Schema = mongoose.Schema; const userSchema = new Schema({ name: { type: String }, age: { type: Number }, address: { type: String } }); const User = mongoose.model('User', userSchema); const countSchema = new Schema({ name: { type: String }, count: { type: Number } }); const Count = mongoose.model('Count', countSchema); app.use(express.urlencoded({ extended: true })); app.use(express.json()); app

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