Node.js 接口记录日志Demo

参考地址

morgan-github
morgan-详细介绍

morgan是express默认的日志中间件，也可以脱离express，作为node.js的日志组件单独使用。

项目中应用场景

1.首先安装morgan以及file-stream-rotator

cnpm i morgan file-stream-rotator -S

2.其次Demo代码如下

logsModel.js

/**
 * 日志记录
 */
const mongoose = require('../common/db').mongoose;
const linkMongo = require('../common/db').linkMongo;

const schema = {
    ip: {type: String, required: false}, // 访问者的ip
    method: {type: String, required: false}, // 调用方法
    time: {type: Number, required: false}, // 响应时间
    code: {type: Number, required: false}, // 状态码
}

const collectionName = 'logs';
const LogSchema = mongoose.Schema(schema);
const Logs = linkMongo.model(collectionName, LogSchema);

module.exports = Logs;

app.js

/**
 * 简单Demo
 */
const restify = require('restify');
const redis = require('redis');
const morgan = require('morgan');

const server = restify.createServer({
    name: 'demo',
    version: '1.0.0'
});

//日志系统Demo
const FileStreamRotator = require('file-stream-rotator');
const fs = require('fs');
const path = require('path');
const logDirectory = path.join(__dirname, 'log');

fs.existsSync(logDirectory) || fs.mkdirSync(logDirectory)

let accessLogStream = FileStreamRotator.getStream({
    date_format: 'YYYYMMDD',
    filename: path.join(logDirectory, '日志-%DATE%.log'),
    frequency: 'daily',
    verbose: false
})

server.use(morgan(function (tokens, req, res) {
    //这里记录日志 可以选择响应时间大于1秒 或者状态码不是200的时候的数据
    const LogsModel = require('./models/logs');
    const data = {
        ip: '',
        method: tokens.method(req, res),
        time: tokens['response-time'](req, res),
        code: tokens.status(req, res),
    };

    LogsModel.create(data); // 这里可用于存入数据库

    return [
        `状态码: ${tokens.status(req, res)}`,
        `响应时间: ${tokens['response-time'](req, res)}ms`
    ].join(' ')
}, {stream: accessLogStream})); // 这里可以写入日志

server.use(restify.plugins.acceptParser(server.acceptable));
server.use(restify.plugins.queryParser());
server.use(restify.plugins.bodyParser());

server.listen('3000', '0.0.0.0', function () {
    console.log('本地端口监听:','3000');
});

const routes = require('./routes')(server);

这样一个简单的Demo完成了。