Je voudrais utiliser winston dans mon application express.Ajouter winston pour exprimer l'application
J'ai configuré winston comme ce qui suit:
const path = require('path')
const winston = require('winston')
module.exports =() => {
process.on('uncaughtException', err => winston.error('uncaught exception: ', err))
process.on('unhandledRejection', (reason, p) => winston.error('unhandled rejection: ', reason, p))
winston.emitErrs = true
winston.exitOnError = false
winston.level = process.env.NODE_ENV === 'production' ? 'info' : 'debug'
winston.remove(winston.transports.Console)
winston.add(winston.transports.Console, {
level: process.env.NODE_ENV === 'production' ? 'info' : 'debug',
handleExceptions: true,
prettyPrint: true,
humanReadableUnhandledException: false,
json: false,
colorize: true,
timestamp: new Date(),
})
winston.add(winston.transports.File, {
level: 'info',
filename: path.join(__dirname, '../logs/app.log'),
handleExceptions: true,
humanReadableUnhandledException: true,
json: false,
maxsize: 10242880, // ~10MB
maxFiles: 3,
colorize: false,
timestamp: new Date(),
})
}
Dans mon application express Je veux ajouter winston comme middleware pour connecter la console:
const express = require('express')
const winston = require("./config/winston")
const app = express()
//initialize winston
app.use(winston)
app.get('/', function (req, res) {
res.send('Hello World!')
})
//Start Server
const port = process.env.APP_PORT || 3000
const host = process.env.APP_HOST || "localhost"
app.listen(port, function() {
console.log("Listening on " + host + ":" + port)
})
Mon problème est que mon application ne pas charger et me renvoie le message d'erreur suivant:
Error: Transport already attached: file, assign a different name
at exports.Logger.Logger.add (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\winston\lib\winst
on\logger.js:487:11)
at Object.winston.(anonymous function) [as add] (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_module
s\winston\lib\winston.js:86:34)
at module.exports (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\src\t02-loggingToFolder.js:23:11)
at Layer.handle [as handle_request] (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\li
b\router\layer.js:95:5)
at trim_prefix (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\lib\router\index.js:317
:13)
at C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\lib\router\index.js:284:7
at Function.process_params (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\lib\router\
index.js:335:12)
at next (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\lib\router\index.js:275:10)
at expressInit (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\lib\middleware\init.js:
40:5)
at Layer.handle [as handle_request] (C:\Users\user\Desktop\Coding Projects\learning_npm_winston\node_modules\express\li
b\router\layer.js:95:5)
Toute suggestion que je je fais mal?
J'apprécie vos réponses!