{"id":444,"date":"2024-04-20T01:34:16","date_gmt":"2024-04-20T01:34:16","guid":{"rendered":"https:\/\/www.freelifemakers.org\/wordpress\/?p=444"},"modified":"2024-04-20T03:13:59","modified_gmt":"2024-04-20T03:13:59","slug":"nodejs-basic-httpserveresmcommonjs","status":"publish","type":"post","link":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/2024\/04\/20\/nodejs-basic-httpserveresmcommonjs\/","title":{"rendered":"NODEJS\uae30\ubcf8 http server ,NODEJS Basic httpserver(ESM,COMMONJS)"},"content":{"rendered":"\n

nodejs\uc5d0\uc11c esm\uacfc commonjs \ubc29\uc2dd\uc758 http server code\uc785\ub2c8\ub2e4.
nodejs\ub294 \uc6f9\uc11c\ubc84(http server)\uac00 \uc5c6\uc2b5\ub2c8\ub2e4.\ucf54\ub4dc\ub85c \uc6f9\uc11c\ubc84\uc758 \uae30\ub2a5\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.
\uae30\ubcf8\uc801\uc73c\ub85c nodejs\ub294 \ud3ec\ud2b8\ubc88\ud638 3000\ubc88\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4 .
\uadf8\ub798\uc11c nodejs\ud328\ud0a4\uc9c0\uc778 react\ub098 express\ub9cc\uc73c\ub85c \uc6f9\uc0ac\uc774\ud2b8\ub97c \ub9cc\ub4e0\ub2e4\uba74
\ub9ac\ubc84\uc2a4 \ud504\ub85d\uc2dc\uae30\ub2a5\uc774 \uc788\ub294 Nginx\uac00 \uc88b\uc740 \uc870\ud569\uc774 \ub418\ub9ac\ub77c \uc0dd\uac01\ub429\ub2c8\ub2e4.

This is ESM and commonjs style http server code in nodejs.
nodejs does not have a web server (http server). It implements the functions of a web server through code.
By default, nodejs uses port number 3000.
So, if you create a website with only the nodejs package react or express,
I think Nginx with reverse proxy function would be a good combination.<\/p>\n\n\n\n


1.ESM,COMMONJS
– nodejs\uc5d0\uc11c\ub294 \ubaa8\ub4c8\uc0ac\uc6a9 \ubc29\uc2dd\uc73c\ub85c ESM\uacfc COMMONJS\ub77c\ub294 \ubc29\uc2dd\uc774 \uc788\uc2b5\ub2c8\ub2e4.
– ESM\uc774 \uac1c\uc120\ub41c \ubc29\uc2dd\uc774\uace0 COMMONJS\uac00 \uc774\uc804 \ubc29\uc2dd \uc785\ub2c8\ub2e4. <\/p>\n\n\n\n

In nodejs, there are two ways to use modules: ESM and COMMONJS.
ESM is an improved method and COMMONJS is the previous method.<\/p>\n\n\n\n

1)ESM
– \ud30c\uc77c \ud655\uc7a5\uc790\uac00 mjs\uc785\ub2c8\ub2e4.
– js\ud30c\uc77c\uc744 esm\ubc29\uc2dd\uc73c\ub85c \uc0ac\uc6a9\ud560 \uacbd\uc6b0 package.json\ud30c\uc77c\uc5d0\uc11c “Type”:”module”, \uc744 \ucd94\uac00\ud569\ub2c8\ub2e4.
– \uc544\ub798\uc758 \ucf54\ub4dc\uc5d0\uc11c \uac15\uc870\ub41c \ub179\uc0c9\ubd80\ubd84\uc774 ESM \ubc29\uc2dd\uc758 \ucf54\ub4dc \uc785\ub2c8\ub2e4.
– \ubcf4\ub77c\uc0c9 \ucf54\ub4dc \ub300\uc2e0 \ub178\ub780\uc0c9 \ucf54\uba58\ud2b8 \ucc98\ub9ac\ub41c \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud574\ub3c4 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

-The file extension is mjs.
-When using js files in esm format, add “Type”:”module”, in the package.json file.
-The green part highlighted in the code below is the ESM type code.
-You can use the yellow commented code instead of the purple code.<\/p>\n\n\n\n

\/\/ server.mjs --> ESM TYPE\nimport { createServer } from 'node:http';<\/mark>\n\nconst server = createServer((req, res) => {\n  res.writeHead(200, { 'Content-Type': 'text\/plain' });\n  res.end('ESM:Hello World!\\n');\n});\n\n\n\/\/ starts a simple http server locally on port 3000\n\/*\nserver.listen(3000, '127.0.0.1', () => {\n  console.log('ESM:Listening on 127.0.0.1:3000');\n});\n*\/<\/mark>\n\nconst PORT = process.env.PORT || 3000;\nserver.listen(PORT, () => {\n  console.log(`ESM:Server is running on port ${PORT}`);\n});<\/mark><\/code><\/pre>\n\n\n\n
-\uc704\uc758 \ucf54\ub4dc\ub97c server.mjs\ud30c\uc77c\uc774 \uc544\ub2cc server.js\ud30c\uc77c\ub85c \uc0ac\uc6a9\ud558\uae30 \uc6d0\ud55c\ub2e4\uba74 package.json\ud30c\uc77c\uc5d0 ‘ “Type”:”module”, ‘\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \ucd94\uac00\ud569\ub2c8\ub2e4.
-package.json\ud30c\uc77c\uc740 command line\uc5d0\uc11c npm\uba85\ub839\uc73c\ub85c \ubaa8\ub4c8\uc744 \uc124\uce58\ud558\uba74 \uc790\ub3d9\uc73c\ub85c \uc0dd\uc131\ub429\ub2c8\ub2e4.

-If you want to use the above code in a server.js file rather than a server.mjs file, add ‘ “Type”:”module”, ‘ to the package.json file as follows.
-The package.json file is automatically created when you install the module using the npm command from the command line.<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
2)COMMONJS
-\ud30c\uc77c\ud655\uc7a5\uc790\uac00 js\uc785\ub2c8\ub2e4.
-nodejs\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uae30\ubcf8\uc801\uc778 \ubaa8\ub4c8 \uc0ac\uc6a9\ubc29\uc2dd\uc785\ub2c8\ub2e4. \ud2b9\ubcc4\ud55c \uc14b\ud305\uc774 \ud544\uc694 \ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.
-\uc544\ub798\uc758 \ucf54\ub4dc\uc5d0\uc11c \uac15\uc870\ub41c \ub179\uc0c9\ubd80\ubd84\uc774 COMMONJS \ubc29\uc2dd\uc758 \ucf54\ub4dc \uc785\ub2c8\ub2e4.
-\ubcf4\ub77c\uc0c9 \ubd80\ubd84\uc740 COMMONJS\ub97c \uc0ac\uc6a9\ud574\uc11c \ubc14\ub010 \ubd80\ubd84\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n
-The file extension is js.
-This is the basic module usage method provided by nodejs. No special settings are required.
The purple part is the part that was changed using COMMONJS.<\/p>\n\n\n\n
\/\/server.js --> Commonjs type\nconst http = require('http');<\/mark>\n\nconst server = http.createServer<\/mark>((req, res) => {\n    res.writeHead(200, { 'Content-Type': 'text\/plain' });\n    res.end('CommonJS:Hello World!\\n');\n  });\n\n\n\/\/ Start the server\nconst PORT = process.env.PORT || 3000;\nserver.listen(PORT, () => {\n  console.log(`CommonJS:Server is running on port ${PORT}`);\n});\n<\/code><\/pre>\n\n\n\n