MicroMono微服务框架
MicroMono 可以使用整体风格编写微服务。MicroMono 是一个使用 monolithic 风格开发微服务的框架,允许你切换和混合 微服务/整体 风格,不需要修改代码。之前两者是通过 VS 连接,现在使用 micromono 可以很好的同时处理两者。
MicroMono 包括 3 部分:
-
Web 框架 (http 路由,中间件,页面渲染等等)
-
远程方法调用 (RPC)
-
前端代码管理 (JavaScript 和 CSS 静态资产文件)
MicroMono 包含两种类型的组件:
代码示例
定义一个服务
// Require micromono and get the Service base class
var Service = require('micromono').Service;
// Subclass Service class to define your service
// (Backbone/Ampersand style inheritance)
var SimpleHttpService = Service.extend({
// `route` is the object where you define all your routing handlers
route: {
'get::/hello/:name': function(req, res) {
// Basically, this handler function will be directly attached to
// internal express instance created by micromono. So, any express
// route handler could be ported to micromono without any modification.
var name = req.params.name;
res.send('Hello, ' + name);
}
}
});
The 'get::/hello/:name': function(req, res){...} part in above example equivalents to:
var app = express();
app.get('/hello/:name', function(req, res){
var name = req.params.name;
res.send('Hello, ' + name);
});
服务初始化
var bodyParser = require('body-parser');
var Service = require('micromono').Service;
var MongoClient = require('mongodb').MongoClient;
module.exports = Service.extend({
// initialization function takes no arguments
init: function() {
// get the internal express instance
var app = this.app;
// use a middleware
app.use(bodyParser.json());
var self = this;
// create a new promise instance
var promise = new Promise(function(resolve, reject){
// do the async operation (connect)
MongoClient.connect('127.0.0.1', function(err, db){
if (err) {
// reject the promise if there's an error
reject(err);
return;
}
self.db = db;
// resolve when done
resolve();
});
});
// init function should return a promise no matter what
return promise;
}
});
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