server build

+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

+{
+  "name": "management",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "@material-ui/core": "^4.10.2",
+    "@testing-library/jest-dom": "^4.2.4",
+    "@testing-library/react": "^9.5.0",
+    "@testing-library/user-event": "^7.2.1",
+    "react": "^16.13.1",
+    "react-dom": "^16.13.1",
+    "react-scripts": "3.4.1"
+  },
+  "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"
+    ]
+  }
+}

-{
-  "name": "management",
-  "version": "0.1.0",
-  "private": true,
-  "dependencies": {
-    "@material-ui/core": "^4.10.2",
-    "@testing-library/jest-dom": "^4.2.4",
-    "@testing-library/react": "^9.5.0",
-    "@testing-library/user-event": "^7.2.1",
-    "react": "^16.13.1",
-    "react-dom": "^16.13.1",
-    "react-scripts": "3.4.1"
-  },
-  "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"
-    ]
-  }
-}

+const express = require('express');
+const bodyParser = require('body-parser');
+const app = express();
+const port = process.env.PORT || 5000;
+
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({ exrended : true }));
+
+//api의 hello라는 경로로 들어갔을때의 처리
+app.get('/api/hello', (req,res)=>{
+    res.send({message: 'Hello Express!'});
+})
+
+app.listen(port, () => console.log(`Listening on port ${port}`));
\ No newline at end of file