diff --git a/.gitignore b/.gitignore
index c9735e7..4bbcc78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ node_modules
 .idea
 .vscode
 .history
+examples/moddef.json
diff --git a/app.js b/app.js
index 26e657a..de14190 100644
--- a/app.js
+++ b/app.js
@@ -1,146 +1,4 @@
 #!/usr/bin/env node
-const fs = require('fs')
-const path = require('path')
-const express = require('express')
-const bodyParser = require('body-parser')
-const request = require('./util/request')
-const packageJSON = require('./package.json')
-const exec = require('child_process').exec
-const cache = require('./util/apicache').middleware
-const { cookieToJson } = require('./util/index')
-const fileUpload = require('express-fileupload')
-const decode = require('safe-decode-uri-component')
-
-// version check
-exec('npm info NeteaseCloudMusicApi version', (err, stdout, stderr) => {
-  if (!err) {
-    let version = stdout.trim()
-    if (packageJSON.version < version) {
-      console.log(
-        `最新版本: ${version}, 当前版本: ${packageJSON.version}, 请及时更新`,
-      )
-    }
-  }
+require('./server').serveNcmApi({
+  checkVersion: true,
 })
-
-const app = express()
-app.set('trust proxy', true)
-
-// CORS & Preflight request
-app.use((req, res, next) => {
-  if (req.path !== '/' && !req.path.includes('.')) {
-    res.set({
-      'Access-Control-Allow-Credentials': true,
-      'Access-Control-Allow-Origin': req.headers.origin || '*',
-      'Access-Control-Allow-Headers': 'X-Requested-With,Content-Type',
-      'Access-Control-Allow-Methods': 'PUT,POST,GET,DELETE,OPTIONS',
-      'Content-Type': 'application/json; charset=utf-8',
-    })
-  }
-  req.method === 'OPTIONS' ? res.status(204).end() : next()
-})
-
-// cookie parser
-app.use((req, res, next) => {
-  req.cookies = {}
-  //;(req.headers.cookie || '').split(/\s*;\s*/).forEach((pair) => { //  Polynomial regular expression //
-  ;(req.headers.cookie || '').split(/;\s+|(?<!\s)\s+$/g).forEach((pair) => {
-    let crack = pair.indexOf('=')
-    if (crack < 1 || crack == pair.length - 1) return
-    req.cookies[decode(pair.slice(0, crack)).trim()] = decode(
-      pair.slice(crack + 1),
-    ).trim()
-  })
-  next()
-})
-
-// body parser
-app.use(bodyParser.json())
-app.use(bodyParser.urlencoded({ extended: false }))
-
-app.use(fileUpload())
-
-// static
-app.use(express.static(path.join(__dirname, 'public')))
-
-// cache
-app.use(cache('2 minutes', (req, res) => res.statusCode === 200))
-// router
-const special = {
-  'daily_signin.js': '/daily_signin',
-  'fm_trash.js': '/fm_trash',
-  'personal_fm.js': '/personal_fm',
-}
-
-fs.readdirSync(path.join(__dirname, 'module'))
-  .reverse()
-  .forEach((file) => {
-    if (!file.endsWith('.js')) return
-    let route =
-      file in special
-        ? special[file]
-        : '/' + file.replace(/\.js$/i, '').replace(/_/g, '/')
-    let question = require(path.join(__dirname, 'module', file))
-
-    app.use(route, (req, res) => {
-      ;[req.query, req.body].forEach((item) => {
-        if (typeof item.cookie === 'string') {
-          item.cookie = cookieToJson(decode(item.cookie))
-        }
-      })
-      let query = Object.assign(
-        {},
-        { cookie: req.cookies },
-        req.query,
-        req.body,
-        req.files,
-      )
-
-      question(query, request)
-        .then((answer) => {
-          console.log('[OK]', decode(req.originalUrl))
-
-          const cookies = answer.cookie
-          if (Array.isArray(cookies) && cookies.length > 0) {
-            if (req.protocol === 'https') {
-              // Try to fix CORS SameSite Problem
-              res.append(
-                'Set-Cookie',
-                cookies.map((cookie) => {
-                  return cookie + '; SameSite=None; Secure'
-                }),
-              )
-            } else {
-              res.append('Set-Cookie', cookies)
-            }
-          }
-          res.status(answer.status).send(answer.body)
-        })
-        .catch((answer) => {
-          console.log('[ERR]', decode(req.originalUrl), {
-            status: answer.status,
-            body: answer.body,
-          })
-          if (!answer.body) {
-            res.status(404).send({
-              code: 404,
-              data: null,
-              msg: 'Not Found',
-            })
-            return
-          }
-          if (answer.body.code == '301') answer.body.msg = '需要登录'
-          res.append('Set-Cookie', answer.cookie)
-          res.status(answer.status).send(answer.body)
-        })
-    })
-  })
-
-const port = process.env.PORT || 3000
-const host = process.env.HOST || ''
-
-app.server = app.listen(port, host, () => {
-  console.log(`server running @ http://${host ? host : 'localhost'}:${port}`)
-})
-
-module.exports = app
diff --git a/app.test.js b/app.test.js
deleted file mode 100644
index 94846b2..0000000
--- a/app.test.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const fs = require('fs')
-const path = require('path')
-
-let app
-before(() => {
-  app = require('./app.js')
-  global.host = 'http://localhost:' + app.server.address().port
-})
-after((done) => {
-  app.server.close(done)
-})
-
-fs.readdirSync(path.join(__dirname, 'test')).forEach((file) => {
-  require(path.join(__dirname, 'test', file))
-})
diff --git a/examples/get_static_moddef.js b/examples/get_static_moddef.js
new file mode 100644
index 0000000..f430aed
--- /dev/null
+++ b/examples/get_static_moddef.js
@@ -0,0 +1,22 @@
+const fsPromises = require('fs/promises')
+const path = require('path')
+const server = require('../server')
+
+const exportFile = path.join(__dirname, 'moddef.json')
+
+async function main() {
+  const def = await server.getModulesDefinitions(
+    path.join(__dirname, '..', 'module'),
+    {
+      'daily_signin.js': '/daily_signin',
+      'fm_trash.js': '/fm_trash',
+      'personal_fm.js': '/personal_fm',
+    },
+    false,
+  )
+
+  fsPromises.writeFile(exportFile, JSON.stringify(def, null, 4))
+  console.log(`👍 Get your own definition at: ${exportFile}`)
+}
+
+main()
diff --git a/main.js b/main.js
deleted file mode 100644
index 0b21490..0000000
--- a/main.js
+++ /dev/null
@@ -1,26 +0,0 @@
-const fs = require('fs')
-const path = require('path')
-const request = require('./util/request')
-const { cookieToJson } = require('./util/index')
-
-let obj = {}
-fs.readdirSync(path.join(__dirname, 'module'))
-  .reverse()
-  .forEach((file) => {
-    if (!file.endsWith('.js')) return
-    let fileModule = require(path.join(__dirname, 'module', file))
-    obj[file.split('.').shift()] = function (data) {
-      if (typeof data.cookie === 'string') {
-        data.cookie = cookieToJson(data.cookie)
-      }
-      return fileModule(
-        {
-          ...data,
-          cookie: data.cookie ? data.cookie : {},
-        },
-        request,
-      )
-    }
-  })
-
-module.exports = obj
diff --git a/package-lock.json b/package-lock.json
index 09bb2b6..b90d27d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "NeteaseCloudMusicApi",
-  "version": "4.2.0",
+  "version": "4.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "NeteaseCloudMusicApi",
-      "version": "4.2.0",
+      "version": "4.3.0",
       "license": "MIT",
       "dependencies": {
         "axios": "^0.24.0",
@@ -24,6 +24,9 @@
         "NeteaseCloudMusicApi": "app.js"
       },
       "devDependencies": {
+        "@types/express": "^4.17.13",
+        "@types/express-fileupload": "^1.2.2",
+        "@types/mocha": "^9.1.0",
         "@types/node": "16.11.19",
         "@typescript-eslint/eslint-plugin": "5.0.0",
         "@typescript-eslint/parser": "5.0.0",
@@ -186,22 +189,107 @@
         "node": ">= 6"
       }
     },
+    "node_modules/@types/body-parser": {
+      "version": "1.19.2",
+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.2.tgz",
+      "integrity": "sha512-ALYone6pm6QmwZoAgeyNksccT9Q4AWZQ6PvfwR37GT6r6FWUPguq6sUmNGSMV2Wr761oQoBxwGGa6DR5o1DC9g==",
+      "dev": true,
+      "dependencies": {
+        "@types/connect": "*",
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/busboy": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/@types/busboy/-/busboy-0.3.2.tgz",
+      "integrity": "sha512-iEvdm9Z9KdSs/ozuh1Z7ZsXrOl8F4M/CLMXPZHr3QuJ4d6Bjn+HBMC5EMKpwpAo8oi8iK9GZfFoHaIMrrZgwVw==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/connect": {
+      "version": "3.4.35",
+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.35.tgz",
+      "integrity": "sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/debug": {
       "version": "4.1.5",
       "resolved": "https://registry.npmjs.org/@types/debug/-/debug-4.1.5.tgz",
       "integrity": "sha512-Q1y515GcOdTHgagaVFhHnIFQ38ygs/kmxdNpvpou+raI9UO3YZcHDngBSYKQklcKlvA7iuQlmIKbzvmxcOE9CQ=="
     },
+    "node_modules/@types/express": {
+      "version": "4.17.13",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.13.tgz",
+      "integrity": "sha512-6bSZTPaTIACxn48l50SR+axgrqm6qXFIxrdAKaG6PaJk3+zuUr35hBlgT7vOmJcum+OEaIBLtHV/qloEAFITeA==",
+      "dev": true,
+      "dependencies": {
+        "@types/body-parser": "*",
+        "@types/express-serve-static-core": "^4.17.18",
+        "@types/qs": "*",
+        "@types/serve-static": "*"
+      }
+    },
+    "node_modules/@types/express-fileupload": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@types/express-fileupload/-/express-fileupload-1.2.2.tgz",
+      "integrity": "sha512-sWU1EVFfLsdAginKVrkwTRbRPnbn7dawxEFEBgaRDcpNFCUuksZtASaAKEhqwEIg6fSdeTyI6dIUGl3thhrypg==",
+      "dev": true,
+      "dependencies": {
+        "@types/busboy": "^0",
+        "@types/express": "*"
+      }
+    },
+    "node_modules/@types/express-serve-static-core": {
+      "version": "4.17.28",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.28.tgz",
+      "integrity": "sha512-P1BJAEAW3E2DJUlkgq4tOL3RyMunoWXqbSCygWo5ZIWTjUgN1YnaXWW4VWl/oc8vs/XoYibEGBKP0uZyF4AHig==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*",
+        "@types/qs": "*",
+        "@types/range-parser": "*"
+      }
+    },
     "node_modules/@types/json-schema": {
       "version": "7.0.9",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.9.tgz",
       "integrity": "sha512-qcUXuemtEu+E5wZSJHNxUXeCZhAfXKQ41D+duX+VYPde7xyEVZci+/oXKJL13tnRs9lR2pr4fod59GT6/X1/yQ==",
       "dev": true
     },
+    "node_modules/@types/mime": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.2.tgz",
+      "integrity": "sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==",
+      "dev": true
+    },
+    "node_modules/@types/mocha": {
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.1.0.tgz",
+      "integrity": "sha512-QCWHkbMv4Y5U9oW10Uxbr45qMMSzl4OzijsozynUAgx3kEHUdXB00udx2dWDQ7f2TU2a2uuiFaRZjCe3unPpeg==",
+      "dev": true
+    },
     "node_modules/@types/node": {
       "version": "16.11.19",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-16.11.19.tgz",
       "integrity": "sha512-BPAcfDPoHlRQNKktbsbnpACGdypPFBuX4xQlsWDE7B8XXcfII+SpOLay3/qZmCLb39kV5S1RTYwXdkx2lwLYng=="
     },
+    "node_modules/@types/qs": {
+      "version": "6.9.7",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.7.tgz",
+      "integrity": "sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==",
+      "dev": true
+    },
+    "node_modules/@types/range-parser": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.4.tgz",
+      "integrity": "sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==",
+      "dev": true
+    },
     "node_modules/@types/readable-stream": {
       "version": "2.3.9",
       "resolved": "https://registry.npmjs.org/@types/readable-stream/-/readable-stream-2.3.9.tgz",
@@ -211,6 +299,16 @@
         "safe-buffer": "*"
       }
     },
+    "node_modules/@types/serve-static": {
+      "version": "1.13.10",
+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.10.tgz",
+      "integrity": "sha512-nCkHGI4w7ZgAdNkrEu0bv+4xNV/XDqW+DydknebMOQwkpDGx8G+HTlj7R7ABI8i8nKxVw0wtKPi1D+lPOkh4YQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/mime": "^1",
+        "@types/node": "*"
+      }
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.0.0.tgz",
@@ -1502,6 +1600,8 @@
       "resolved": "https://registry.npm.taobao.org/enquirer/download/enquirer-2.3.6.tgz?cache=0&sync_timestamp=1593693291943&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fenquirer%2Fdownload%2Fenquirer-2.3.6.tgz",
       "integrity": "sha1-Kn/l3WNKHkElqXXsmU/1RW3Dc00=",
       "dev": true,
+      "optional": true,
+      "peer": true,
       "dependencies": {
         "ansi-colors": "^4.1.1"
       },
@@ -5770,22 +5870,107 @@
       "resolved": "https://registry.npm.taobao.org/@tootallnate/once/download/@tootallnate/once-1.1.2.tgz",
       "integrity": "sha1-zLkURTYBeaBOf+av94wA/8Hur4I="
     },
+    "@types/body-parser": {
+      "version": "1.19.2",
+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.2.tgz",
+      "integrity": "sha512-ALYone6pm6QmwZoAgeyNksccT9Q4AWZQ6PvfwR37GT6r6FWUPguq6sUmNGSMV2Wr761oQoBxwGGa6DR5o1DC9g==",
+      "dev": true,
+      "requires": {
+        "@types/connect": "*",
+        "@types/node": "*"
+      }
+    },
+    "@types/busboy": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/@types/busboy/-/busboy-0.3.2.tgz",
+      "integrity": "sha512-iEvdm9Z9KdSs/ozuh1Z7ZsXrOl8F4M/CLMXPZHr3QuJ4d6Bjn+HBMC5EMKpwpAo8oi8iK9GZfFoHaIMrrZgwVw==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/connect": {
+      "version": "3.4.35",
+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.35.tgz",
+      "integrity": "sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/debug": {
       "version": "4.1.5",
       "resolved": "https://registry.npmjs.org/@types/debug/-/debug-4.1.5.tgz",
       "integrity": "sha512-Q1y515GcOdTHgagaVFhHnIFQ38ygs/kmxdNpvpou+raI9UO3YZcHDngBSYKQklcKlvA7iuQlmIKbzvmxcOE9CQ=="
     },
+    "@types/express": {
+      "version": "4.17.13",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.13.tgz",
+      "integrity": "sha512-6bSZTPaTIACxn48l50SR+axgrqm6qXFIxrdAKaG6PaJk3+zuUr35hBlgT7vOmJcum+OEaIBLtHV/qloEAFITeA==",
+      "dev": true,
+      "requires": {
+        "@types/body-parser": "*",
+        "@types/express-serve-static-core": "^4.17.18",
+        "@types/qs": "*",
+        "@types/serve-static": "*"
+      }
+    },
+    "@types/express-fileupload": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@types/express-fileupload/-/express-fileupload-1.2.2.tgz",
+      "integrity": "sha512-sWU1EVFfLsdAginKVrkwTRbRPnbn7dawxEFEBgaRDcpNFCUuksZtASaAKEhqwEIg6fSdeTyI6dIUGl3thhrypg==",
+      "dev": true,
+      "requires": {
+        "@types/busboy": "^0",
+        "@types/express": "*"
+      }
+    },
+    "@types/express-serve-static-core": {
+      "version": "4.17.28",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.28.tgz",
+      "integrity": "sha512-P1BJAEAW3E2DJUlkgq4tOL3RyMunoWXqbSCygWo5ZIWTjUgN1YnaXWW4VWl/oc8vs/XoYibEGBKP0uZyF4AHig==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*",
+        "@types/qs": "*",
+        "@types/range-parser": "*"
+      }
+    },
     "@types/json-schema": {
       "version": "7.0.9",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.9.tgz",
       "integrity": "sha512-qcUXuemtEu+E5wZSJHNxUXeCZhAfXKQ41D+duX+VYPde7xyEVZci+/oXKJL13tnRs9lR2pr4fod59GT6/X1/yQ==",
       "dev": true
     },
+    "@types/mime": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.2.tgz",
+      "integrity": "sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==",
+      "dev": true
+    },
+    "@types/mocha": {
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-9.1.0.tgz",
+      "integrity": "sha512-QCWHkbMv4Y5U9oW10Uxbr45qMMSzl4OzijsozynUAgx3kEHUdXB00udx2dWDQ7f2TU2a2uuiFaRZjCe3unPpeg==",
+      "dev": true
+    },
     "@types/node": {
       "version": "16.11.19",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-16.11.19.tgz",
       "integrity": "sha512-BPAcfDPoHlRQNKktbsbnpACGdypPFBuX4xQlsWDE7B8XXcfII+SpOLay3/qZmCLb39kV5S1RTYwXdkx2lwLYng=="
     },
+    "@types/qs": {
+      "version": "6.9.7",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.7.tgz",
+      "integrity": "sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==",
+      "dev": true
+    },
+    "@types/range-parser": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.4.tgz",
+      "integrity": "sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==",
+      "dev": true
+    },
     "@types/readable-stream": {
       "version": "2.3.9",
       "resolved": "https://registry.npmjs.org/@types/readable-stream/-/readable-stream-2.3.9.tgz",
@@ -5795,6 +5980,16 @@
         "safe-buffer": "*"
       }
     },
+    "@types/serve-static": {
+      "version": "1.13.10",
+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.10.tgz",
+      "integrity": "sha512-nCkHGI4w7ZgAdNkrEu0bv+4xNV/XDqW+DydknebMOQwkpDGx8G+HTlj7R7ABI8i8nKxVw0wtKPi1D+lPOkh4YQ==",
+      "dev": true,
+      "requires": {
+        "@types/mime": "^1",
+        "@types/node": "*"
+      }
+    },
     "@typescript-eslint/eslint-plugin": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-5.0.0.tgz",
@@ -6743,6 +6938,8 @@
       "resolved": "https://registry.npm.taobao.org/enquirer/download/enquirer-2.3.6.tgz?cache=0&sync_timestamp=1593693291943&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fenquirer%2Fdownload%2Fenquirer-2.3.6.tgz",
       "integrity": "sha1-Kn/l3WNKHkElqXXsmU/1RW3Dc00=",
       "dev": true,
+      "optional": true,
+      "peer": true,
       "requires": {
         "ansi-colors": "^4.1.1"
       }
diff --git a/package.json b/package.json
index bd88d0b..0fde53f 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "网易云音乐 NodeJS 版 API",
   "scripts": {
     "start": "node app.js",
-    "test": "mocha -r intelli-espower-loader -t 20000 app.test.js --exit",
+    "test": "mocha -r intelli-espower-loader -t 20000 server.test.js --exit",
     "lint": "eslint \"**/*.{js,ts}\"",
     "lint-fix": "eslint --fix \"**/*.{js,ts}\"",
     "prepare": "husky install",
@@ -22,7 +22,7 @@
     "音乐",
     "网易云音乐nodejs"
   ],
-  "main": "main.js",
+  "main": "server.js",
   "types": "./interface.d.ts",
   "engines": {
     "node": ">=12"
@@ -56,6 +56,9 @@
     "yargs": "^17.1.1"
   },
   "devDependencies": {
+    "@types/express": "^4.17.13",
+    "@types/express-fileupload": "^1.2.2",
+    "@types/mocha": "^9.1.0",
     "@types/node": "16.11.19",
     "@typescript-eslint/eslint-plugin": "5.0.0",
     "@typescript-eslint/parser": "5.0.0",
diff --git a/server.js b/server.js
new file mode 100644
index 0000000..4d8e4b0
--- /dev/null
+++ b/server.js
@@ -0,0 +1,300 @@
+const fs = require('fs')
+const path = require('path')
+const express = require('express')
+const request = require('./util/request')
+const packageJSON = require('./package.json')
+const exec = require('child_process').exec
+const cache = require('./util/apicache').middleware
+const { cookieToJson } = require('./util/index')
+const fileUpload = require('express-fileupload')
+const decode = require('safe-decode-uri-component')
+
+/**
+ * The version check result.
+ * @readonly
+ * @enum {number}
+ */
+const VERSION_CHECK_RESULT = {
+  FAILED: -1,
+  NOT_LATEST: 0,
+  LATEST: 1,
+}
+
+/**
+ * @typedef {{
+ *   identifier?: string,
+ *   route: string,
+ *   module: any
+ * }} ModuleDefinition
+ */
+
+/**
+ * @typedef {{
+ *   port?: number,
+ *   host?: string,
+ *   checkVersion?: boolean,
+ *   moduleDefs?: ModuleDefinition[]
+ * }} NcmApiOptions
+ */
+
+/**
+ * @typedef {{
+ *   status: VERSION_CHECK_RESULT,
+ *   ourVersion?: string,
+ *   npmVersion?: string,
+ * }} VersionCheckResult
+ */
+
+/**
+ * @typedef {{
+ *  server?: import('http').Server,
+ * }} ExpressExtension
+ */
+
+/**
+ * Get the module definitions dynamically.
+ *
+ * @param {string} modulesPath The path to modules (JS).
+ * @param {Record<string, string>} [specificRoute] The specific route of specific modules.
+ * @param {boolean} [doRequire] If true, require() the module directly.
+ * Otherwise, print out the module path. Default to true.
+ * @returns {Promise<ModuleDefinition[]>} The module definitions.
+ *
+ * @example getModuleDefinitions("./module", {"album_new.js": "/album/create"})
+ */
+async function getModulesDefinitions(
+  modulesPath,
+  specificRoute,
+  doRequire = true,
+) {
+  const files = await fs.promises.readdir(modulesPath)
+  const parseRoute = (/** @type {string} */ fileName) =>
+    specificRoute && fileName in specificRoute
+      ? specificRoute[fileName]
+      : `/${fileName.replace(/\.js$/i, '').replace(/_/g, '/')}`
+
+  const modules = files
+    .reverse()
+    .filter((file) => file.endsWith('.js'))
+    .map((file) => {
+      const identifier = file.split('.').shift()
+      const route = parseRoute(file)
+      const modulePath = path.join(modulesPath, file)
+      const module = doRequire ? require(modulePath) : modulePath
+
+      return { identifier, route, module }
+    })
+
+  return modules
+}
+
+/**
+ * Check if the version of this API is latest.
+ *
+ * @returns {Promise<VersionCheckResult>} If true, this API is up-to-date;
+ * otherwise, this API should be upgraded and you would
+ * need to notify users to upgrade it manually.
+ */
+async function checkVersion() {
+  return new Promise((resolve) => {
+    exec('npm info NeteaseCloudMusicApi version', (err, stdout) => {
+      if (!err) {
+        let version = stdout.trim()
+
+        /**
+         * @param {VERSION_CHECK_RESULT} status
+         */
+        const resolveStatus = (status) =>
+          resolve({
+            status,
+            ourVersion: packageJSON.version,
+            npmVersion: version,
+          })
+
+        resolveStatus(
+          packageJSON.version < version
+            ? VERSION_CHECK_RESULT.NOT_LATEST
+            : VERSION_CHECK_RESULT.LATEST,
+        )
+      }
+    })
+
+    resolve({
+      status: VERSION_CHECK_RESULT.FAILED,
+    })
+  })
+}
+
+/**
+ * Construct the server of NCM API.
+ *
+ * @param {ModuleDefinition[]} [moduleDefs] Customized module definitions [advanced]
+ * @returns {Promise<import("express").Express>} The server instance.
+ */
+async function consturctServer(moduleDefs) {
+  const app = express()
+  app.set('trust proxy', true)
+
+  /**
+   * CORS & Preflight request
+   */
+  app.use((req, res, next) => {
+    if (req.path !== '/' && !req.path.includes('.')) {
+      res.set({
+        'Access-Control-Allow-Credentials': true,
+        'Access-Control-Allow-Origin': req.headers.origin || '*',
+        'Access-Control-Allow-Headers': 'X-Requested-With,Content-Type',
+        'Access-Control-Allow-Methods': 'PUT,POST,GET,DELETE,OPTIONS',
+        'Content-Type': 'application/json; charset=utf-8',
+      })
+    }
+    req.method === 'OPTIONS' ? res.status(204).end() : next()
+  })
+
+  /**
+   * Cookie Parser
+   */
+  app.use((req, _, next) => {
+    req.cookies = {}
+    //;(req.headers.cookie || '').split(/\s*;\s*/).forEach((pair) => { //  Polynomial regular expression //
+    ;(req.headers.cookie || '').split(/;\s+|(?<!\s)\s+$/g).forEach((pair) => {
+      let crack = pair.indexOf('=')
+      if (crack < 1 || crack == pair.length - 1) return
+      req.cookies[decode(pair.slice(0, crack)).trim()] = decode(
+        pair.slice(crack + 1),
+      ).trim()
+    })
+    next()
+  })
+
+  /**
+   * Body Parser and File Upload
+   */
+  app.use(express.json())
+  app.use(express.urlencoded({ extended: false }))
+
+  app.use(fileUpload())
+
+  /**
+   * Serving static files
+   */
+  app.use(express.static(path.join(__dirname, 'public')))
+
+  /**
+   * Cache
+   */
+  app.use(cache('2 minutes', (_, res) => res.statusCode === 200))
+
+  /**
+   * Special Routers
+   */
+  const special = {
+    'daily_signin.js': '/daily_signin',
+    'fm_trash.js': '/fm_trash',
+    'personal_fm.js': '/personal_fm',
+  }
+
+  /**
+   * Load every modules in this directory
+   */
+  const moduleDefinitions =
+    moduleDefs ||
+    (await getModulesDefinitions(path.join(__dirname, 'module'), special))
+
+  for (const moduleDef of moduleDefinitions) {
+    // Register the route.
+    app.use(moduleDef.route, async (req, res) => {
+      ;[req.query, req.body].forEach((item) => {
+        if (typeof item.cookie === 'string') {
+          item.cookie = cookieToJson(decode(item.cookie))
+        }
+      })
+
+      let query = Object.assign(
+        {},
+        { cookie: req.cookies },
+        req.query,
+        req.body,
+      )
+
+      try {
+        const moduleResponse = await moduleDef.module(query, request)
+        console.log('[OK]', decode(req.originalUrl))
+
+        const cookies = moduleResponse.cookie
+        if (Array.isArray(cookies) && cookies.length > 0) {
+          if (req.protocol === 'https') {
+            // Try to fix CORS SameSite Problem
+            res.append(
+              'Set-Cookie',
+              cookies.map((cookie) => {
+                return cookie + '; SameSite=None; Secure'
+              }),
+            )
+          } else {
+            res.append('Set-Cookie', cookies)
+          }
+        }
+        res.status(moduleResponse.status).send(moduleResponse.body)
+      } catch (/** @type {*} */ moduleResponse) {
+        console.log('[ERR]', decode(req.originalUrl), {
+          status: moduleResponse.status,
+          body: moduleResponse.body,
+        })
+        if (!moduleResponse.body) {
+          res.status(404).send({
+            code: 404,
+            data: null,
+            msg: 'Not Found',
+          })
+          return
+        }
+        if (moduleResponse.body.code == '301')
+          moduleResponse.body.msg = '需要登录'
+        res.append('Set-Cookie', moduleResponse.cookie)
+        res.status(moduleResponse.status).send(moduleResponse.body)
+      }
+    })
+  }
+
+  return app
+}
+
+/**
+ * Serve the NCM API.
+ * @param {NcmApiOptions} options
+ * @returns {Promise<import('express').Express & ExpressExtension>}
+ */
+async function serveNcmApi(options) {
+  const port = Number(options.port || process.env.PORT || '3000')
+  const host = options.host || process.env.HOST || ''
+
+  const checkVersionSubmission =
+    options.checkVersion &&
+    checkVersion().then(({ npmVersion, ourVersion, status }) => {
+      if (status == VERSION_CHECK_RESULT.NOT_LATEST) {
+        console.log(
+          `最新版本: ${npmVersion}, 当前版本: ${ourVersion}, 请及时更新`,
+        )
+      }
+    })
+  const constructServerSubmission = consturctServer(options.moduleDefs)
+
+  const [_, app] = await Promise.all([
+    checkVersionSubmission,
+    constructServerSubmission,
+  ])
+
+  /** @type {import('express').Express & ExpressExtension} */
+  const appExt = app
+  appExt.server = app.listen(port, host, () => {
+    console.log(`server running @ http://${host ? host : 'localhost'}:${port}`)
+  })
+
+  return appExt
+}
+
+module.exports = {
+  serveNcmApi,
+  getModulesDefinitions,
+}
diff --git a/server.test.js b/server.test.js
new file mode 100644
index 0000000..e3d28b2
--- /dev/null
+++ b/server.test.js
@@ -0,0 +1,33 @@
+const fs = require('fs')
+const path = require('path')
+const serverMod = require('./server')
+
+/** @type {import("express").Express & serverMod.ExpressExtension} */
+let app
+
+before(async () => {
+  app = await serverMod.serveNcmApi({})
+
+  if (app.server && app.server.address) {
+    const addr = app.server.address()
+    if (addr && typeof addr === 'object' && 'port' in addr) {
+      global.host = `http://localhost:${addr.port}`
+      return
+    }
+  }
+
+  throw new Error('failed to set up host')
+})
+
+after((done) => {
+  if (app.server) {
+    app.server.close(done)
+    return
+  }
+
+  throw new Error('failed to set up server')
+})
+
+fs.readdirSync(path.join(__dirname, 'test')).forEach((file) => {
+  require(path.join(__dirname, 'test', file))
+})