autolog4j/src/index.js

> use

'use strict';

const log4js = require('log4js');
const fs = require('fs');

let levels = {
    trace: log4js.levels.TRACE,
    debug: log4js.levels.DEBUG,
    info: log4js.levels.INFO,
    warn: log4js.levels.WARN,
    error: log4js.levels.ERROR,
    fatal: log4js.levels.FATAL,
}

const configureLog4js = {
    appenders: {
        ruleFile: {
            type: 'dateFile',
            filename: 'logs/',
            pattern: 'yyyy-MM-dd.log',
            alwaysIncludePattern: true,
        }
    },
    categories: {
        default: {
            appenders: [
                'ruleFile'
            ], level: 'all'
        },
    },
    replaceConsole: true,
    pm2: true,
    pm2InstanceVar: 'INSTANCE_ID',
}

class Logger{
    constructor(app) {
        this.app = app;
        this.configure = app.get('log4js') || configureLog4js;
        this._init();
    }

    judgePath(pathStr) {
        if (!fs.existsSync(pathStr)) fs.mkdirSync(pathStr);
    }

    _init() {
        log4js.configure(this.configure);
    }

    logger(name) {
        return log4js.getLogger(name);
    }

    use(level) {
        this.app.use(log4js.connectLogger(log4js.getLogger('logInfo', {
            level: levels[level] || levels.info,
            format: (req, res, fmt) => {
                return `${fmt(':date :remote-addr :method :url :status')} ${res.responseTime}ms`;
            }
        })));
    }
}

module.exports = (app) => {
    return new Logger(app);
}