인프런 커뮤니티 질문&답변

npm run dev로 서버는 성공적으로 올라갔는데 localhost:3000 접속 시 연결이 거부되었다고 뜹니다.

이것저것 많이 찾아보긴 했는데 해결이 안되네요 ㅠㅠ

windows, 크롬에서 실행했습니다. 해결 방법을 알 수 있을까요?

// index.js

const express = require("express");
const path = require("path");
const bodyParser = require("body-parser");
const app = express();

const config = require("./server/config/keys");
// const mongoose = require("mongoose");
// mongoose.connect(config.mongoURI, { useNewUrlParser: true, useUnifiedTopology: true })
//   .then(() => console.log('MongoDB Connected...'))
//   .catch(err => console.log(err));

app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

app.use('/api/dialogflow', require('./server/routes/dialogflow'));

// Serve static assets if in production
if (process.env.NODE_ENV === "production") {

  // Set static folder
  app.use(express.static("client/build"));

  // index.html for all page routes
  app.get("*", (req, res) => {
    res.sendFile(path.resolve(__dirname, "client", "build", "index.html"));
  });
}

const port = process.env.PORT || 5000;

app.listen(port, () => {
  console.log(`Server Running at ${port}`)
});

//package.json
{
  "name": "chatbot-app",
  "version": "1.0.0",
  "description": "chatbot-app",
  "main": "index.js",
  "engines": {
    "node": "18.20.5",
    "npm": "10.9.0"
  },
  "scripts": {
    "start": "node index.js",
    "backend": "nodemon index.js",
    "frontend": "npm run front --prefix client",
    "dev": "concurrently \"npm run backend\"  \"npm run start --prefix client\""
  },
  "author": "Jaewon Ahn",
  "license": "ISC",
  "dependencies": {
    "actions-on-google": "^3.0.0",
    "body-parser": "^1.20.3",
    "dialogflow": "^1.2.0",
    "dialogflow-fulfillment": "^0.6.1",
    "dotenv": "^16.4.5",
    "express": "^4.21.1",
    "mongoose": "^8.8.1",
    "node": "^18.20.5",
    "punycode": "^2.3.1"
  },
  "devDependencies": {
    "@ant-design/icons": "^5.5.1",
    "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
    "concurrently": "^9.1.0",
    "nodemon": "^3.1.7"
  }
}

client쪽

//package.json
{
  "name": "client",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "antd": "^4.24.16",
    "axios": "^1.7.7",
    "prop-types": "^15.8.1",
    "react": "^18.3.1",
    "react-dom": "^18.3.1",
    "react-redux": "^9.1.2",
    "react-router-dom": "^6.28.0",
    "react-scripts": "5.0.1",
    "redux": "^5.0.1",
    "redux-promise": "^0.6.0",
    "redux-thunk": "^3.1.0",
    "uuid": "^11.0.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "http-proxy-middleware": "^3.0.3"
  }
}