Fawn

Fawn 介绍

Fawn提供了在mongoDB数据库上执行编辑的能力，作为一系列步骤。如果在任何步骤上发生错误，则数据库将返回其初始状态（事务开始之前的状态）。它基于MongoDB文档中描述的两阶段提交系统。 

安装

npm install fawn

用法

var task = Fawn.Task();

//assuming "Accounts" is the Accounts collection

task.update("Accounts",{firstName: "John",lastName: "Smith"},{$inc: {balance: -20}})

.update("Accounts",{firstName: "broke",lastName: "Ass"},{$inc: {balance: 20}})

.run()

.then(function(results){

// task is complete

// result from first operation

var firstUpdateResult = results[0];

// result from second operation

var secondUpdateResult = results[1];

})

.catch(function(err){

// Everything has been rolled back.

// log the error which caused the failure

console.log(err);

});

网站地址:https://www.npmjs.com/package/fawn

GitHub:https://github.com/e-oj/Fawn

网站描述:基于Promise的库，用于MongoDB中的事务

Fawn

官方网站：https://www.npmjs.com/package/fawn