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107 lines
2.6 KiB
Markdown
107 lines
2.6 KiB
Markdown
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# API应用开发入门
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Go是非常适合用来开发API应用的，而且我认为也是Go相对于其他动态语言的最大优势应用。beego在开发API应用方面提供了非常强大和快速的工具，方便用户快速的建立API应用原型，专心业务逻辑就行了。
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## 快速建立原型
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bee快速开发工具提供了一个API应用建立的工具，在gopath/src下的任意目录执行如下命令就可以快速的建立一个API应用：
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`bee api beeapi`
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## 应用的目录结构
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应用的目录结构如下所示：
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```
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├── conf
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│ └── app.conf
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├── controllers
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│ └── default.go
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├── models
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│ └── object.go
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└── main.go
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```
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## 源码解析
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- app.conf里面主要针对API的配置如下：
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autorender = false //API应用不需要模板渲染，所以关闭自动渲染
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copyrequestbody = true //RESTFul应用发送信息的时候是raw body，而不是普通的form表单，所以需要额外的读取body信息
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- main.go文件主要针对RESTFul的路由注册
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`beego.RESTRouter("/object", &controllers.ObejctController{})`
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这个路由可以匹配如下的规则
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<table>
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<tr>
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<th>URL</th> <th>HTTP Verb</th> <th>Functionality</th>
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</tr>
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<tr>
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<td>/object</td> <td>POST</td> <td>Creating Objects</td>
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</tr>
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<tr>
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<td>/object/objectId</td> <td>GET</td> <td>Retrieving Objects</td>
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</tr>
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<tr>
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<td>/object/objectId</td> <td>PUT</td> <td>Updating Objects</td>
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</tr>
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<tr>
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<td>/object</td> <td>GET</td> <td>Queries</td>
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</tr>
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<tr>
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<td>/object/objectId</td> <td>DELETE</td> <td>Deleting Objects</td>
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</tr>
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</table>
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- ObejctController实现了对应的方法：
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```
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type ObejctController struct {
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beego.Controller
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}
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func (this *ObejctController) Post(){
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}
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func (this *ObejctController) Get(){
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}
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func (this *ObejctController) Put(){
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}
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func (this *ObejctController) Delete(){
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}
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```
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- models里面实现了对应操作对象的增删改取等操作
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## 测试
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- 添加一个对象：
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`curl -X POST -d '{"Score":1337,"PlayerName":"Sean Plott"}' http://127.0.0.1:8080/object`
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返回一个相应的objectID:astaxie1373349756660423900
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- 查询一个对象
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`curl -X GET http://127.0.0.1:8080/object/astaxie1373349756660423900`
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- 查询全部的对象
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`curl -X GET http://127.0.0.1:8080/object`
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- 更新一个对象
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`curl -X PUT -d '{"Score":10000}'http://127.0.0.1:8080/object/astaxie1373349756660423900`
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- 删除一个对象
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`curl -X DELETE http://127.0.0.1:8080/object/astaxie1373349756660423900`
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