[英]how to trace nodejs express serving static files
我需要跟蹤nodejs express提供的所有“靜態”文件
我使用app.use(express.static(path.join(__ dirname,'/ public')));
可以嗎?
我想使用簡單的“console.log(”靜態服務“+文件名);
您可以創建一個自定義中間件,通過查看request.path
來檢查請求是否指向某個靜態資產。 例如:
module.exports = (request, response, next) => {
const {method, path} = request;
if (method.toLowerCase() === 'get' && path.startsWith('/public'))
console.log('static serving', path);
next();
};
有幫助嗎?
您可以使用express為路由/public
編寫中間件。 像這樣的東西:
const express = require('express');
const path = require('path');
const app = express();
const PORT = 3000;
app.use('/public', (req, res, next) => {
const { url, path: routePath } = req;
console.log(url);
// or
console.log(routePath);
next();
});
app.use(express.static(path.join(__dirname, '/public')));
app.listen(PORT, () => {
console.log(`app is running on ${PORT}`);
});
我得到了一些記錄所有請求的代碼:
const express = require('express') ;
const path = require('path') ;
const app = express() ;
const PORT = 3000 ;
var myLogger = function (req, res, next) {
const { url, path: routePath } = req ;
console.log( 'my LOGGER - URL (' + url + '), PATH (' + routePath + ').' ) ;
next() ;
}
app.use(myLogger) ;
app.use( express.static( path.join( __dirname, '/public') ) ) ;
app.listen(PORT, () => {
console.log( 'app is running on port {'+PORT+'}.' ) ;
} ) ;
更短:
const express = require('express') ;
const path = require('path') ;
const app = express() ;
const PORT = 3000 ;
app.use( function ( req, res, next ) {
console.log( '### common TimeStamp:', Date.now() ) ;
next() ;
} ) ; // timestamp all
app.use( express.static( path.join( __dirname, '/public') ) ) ;
app.listen(PORT, () => {
console.log( 'app is running on port {'+PORT+'}.' ) ;
} ) ;
再見。
此代碼有效:
const express = require('express') ;
const path = require('path') ;
const app = express() ;
const PORT = 3000 ;
app.use( function ( req, res, next ) {
const { url, path: routePath } = req ;
console.log( '### common TimeStamp:', Date.now(), ' - my LOGGER - URL (' + url + '), PATH (' + routePath + ').' ) ;
next() ;
} ) ; // timestamp all
app.use( express.static( path.join( __dirname, '/public' ) ) ) ;
app.listen(PORT, () => {
console.log( `app is running on port ${PORT}.` ) ;
} ) ;
這段代碼不要:
const express = require('express') ;
const path = require('path') ;
const app = express() ;
const PORT = 3000 ;
app.use( '/public', function ( req, res, next ) {
const { url, path: routePath } = req ;
console.log( '### common TimeStamp:', Date.now(), ' - my LOGGER - URL (' + url + '), PATH (' + routePath + ').' ) ;
next() ;
} ) ; // timestamp all
app.use( express.static( path.join( __dirname, '/public' ) ) ) ;
app.listen(PORT, () => {
console.log( `app is running on port ${PORT}.` ) ;
} ) ;
為什么? 我只是不知道。
正如你所看到的,唯一的區別是“app.use”有“/ public”與否......
在我看來,“express.static”可以把它全部......
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