🚀 Создал бэкенд

.gitignore

@@ -1,3 +1,5 @@
+backend/names.json
+
 .DS_Store
 node_modules
 /dist

backend/index.js

@@ -0,0 +1,71 @@
+const express = require('express')
+const session = require('express-session')
+const app = express()
+const {MongoClient} = require('mongodb')
+const MongoStore = require('connect-mongo')
+const cors = require('cors')
+require('dotenv').config()
+
+const {verifyCaptcha} = require('./verify-captcha')
+
+app.use(cors())
+app.use(express.json())
+app.use(express.urlencoded({ extended: true }))
+
+const names = require('./names.json')
+const client = new MongoClient(process.env.URI, { useUnifiedTopology: true })
+
+app.use(session({
+  secret: process.env.SECRET,
+  resave: false,
+  saveUninitialized: true,
+  store: MongoStore.create({
+    client,
+    dbName: process.env.DB_NAME
+  }),
+  cookie: { maxAge: 1000 * 60 * 60 * 24 }
+}))
+
+client.connect()
+
+app.post('/auth', async (req, res) => {
+  verifyCaptcha(req, res, async () => {
+    try {
+      const pass = req.body.pass
+      if (pass.toLowerCase() === process.env.PASSWORD) {
+        req.session.loggedIn = true
+        res.status(200).send("Logged in")
+      } else {
+        res.status(401).send("Wrong password")
+      }
+    } catch (e) {
+      console.log("Error: " + e)
+      res.status(500).send()
+    }
+  })
+})
+
+app.get('/card', async (req, res) => {
+  if (req.session.loggedIn) {
+    try {
+      let card = await client.db(process.env.DB_NAME).collection('cards').aggregate([{ $sample: { size: 1 } }]).toArray()
+      card = card[0]
+      res.status(200).send(card)
+    } catch (e) {
+      console.log("Error: " + e)
+      res.status(500).send()
+    }
+  } else {
+    res.status(403).send()
+  }
+})
+
+app.get('/options', async (req, res) => {
+  if (req.session.loggedIn) {
+    res.status(200).send(names)
+  } else {
+    res.status(403).send()
+  }
+})
+
+app.listen(process.env.PORT)

backend/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "vk-bingo-backend",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "nodemon index.js"
+  },
+  "author": "Anatoly Kopyl",
+  "license": "ISC",
+  "devDependencies": {
+    "nodemon": "^2.0.7"
+  },
+  "dependencies": {
+    "axios": "^0.21.1",
+    "connect-mongo": "^4.4.1",
+    "cors": "^2.8.5",
+    "dotenv": "^8.2.0",
+    "express": "^4.17.1",
+    "express-session": "^1.17.1",
+    "mongodb": "^3.6.5"
+  }
+}

backend/verify-captcha.js

@@ -0,0 +1,22 @@
+const axios = require('axios')
+
+module.exports = {
+  verifyCaptcha: function (req, res, cb) {
+    if (!req.body['g-recaptcha-response']) {
+      return res.status(400).send("No captcha")
+    }
+
+    const URL = "https://www.google.com/recaptcha/api/siteverify?secret=" + process.env.SECRET_KEY + "&response=" + req.body['g-recaptcha-response'] + "&remoteip=" + req.socket.remoteAddress
+
+    axios.get(URL).then(function (response) {
+      if (response.data.success !== undefined && !response.data.success) {
+        return res.status(429).send("Invalid captcha")
+      }
+
+      cb()
+    })
+    .catch(function (error) {
+      console.log(error);
+    })
+  }
+}