233 lines
7.1 KiB
Markdown
233 lines
7.1 KiB
Markdown
[English](./README.md) | 简体中文
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# Echoswagger
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[Echo](https://github.com/labstack/echo) 框架的 [Swagger UI](https://github.com/swagger-api/swagger-ui) 生成器
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[![Go Report Card](https://goreportcard.com/badge/github.com/pangpanglabs/echoswagger)](https://goreportcard.com/report/github.com/pangpanglabs/echoswagger)
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[![Build Status](https://travis-ci.org/pangpanglabs/echoswagger.svg?branch=master)](https://travis-ci.org/pangpanglabs/echoswagger)
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[![codecov](https://codecov.io/gh/pangpanglabs/echoswagger/branch/master/graph/badge.svg)](https://codecov.io/gh/pangpanglabs/echoswagger)
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## 特性
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- 不依赖任何SwaggerUI的HTML/CSS文件
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- 与Echo高度整合,低侵入式设计
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- 利用强类型语言和链式编程的优势,简单易用
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- 及时的垃圾回收,低内存占用
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## 安装
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```
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go get github.com/pangpanglabs/echoswagger
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```
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## 示例
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```go
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package main
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import (
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"net/http"
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"github.com/pangpanglabs/echoswagger"
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"github.com/labstack/echo"
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)
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func main() {
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// ApiRoot with Echo instance
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r := echoswagger.New(echo.New(), "", "doc/", nil)
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// Routes with parameters & responses
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r.POST("/", createUser).
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AddParamBody(User{}, "body", "User input struct", true).
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AddResponse(http.StatusCreated, "successful", nil, nil)
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// Start server
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r.Echo().Logger.Fatal(r.Echo().Start(":1323"))
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}
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type User struct {
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Name string
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}
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// Handler
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func createUser(c echo.Context) error {
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return c.JSON(http.StatusCreated, nil)
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}
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```
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## 用法
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#### 用`New()`创建`ApiRoot`,此方法是对`echo.New()`方法的封装
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```
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r := echoswagger.New(echo.New(), "/v1", "doc/", nil)
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```
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> 注意:参数`basePath`一般用于程序部署后访问路径并非网站根目录时的情况,比如程序运行在本地的某个API的URL为:`http://localhost:1323/users`,部署至服务器后的实际URL为:`https://www.xxx.com/legacy-api/users`,则本地运行时,`basePath`应该传入`/`, 部署至服务器时,`basePath`应该传入`/legacy-api`。
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你可以用这个`ApiRoot`来:
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- 设置Security定义, 请求/响应Content-Type,UI选项,Scheme等。
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```
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r.AddSecurityAPIKey("JWT", "JWT Token", echoswagger.SecurityInHeader).
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SetRequestContentType("application/x-www-form-urlencoded", "multipart/form-data").
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SetUI(UISetting{HideTop: true}).
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SetScheme("https", "http")
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```
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- 获取`echo.Echo`实例。
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```
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r.Echo()
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```
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- 在默认组中注册一个GET、POST、PUT、DELETE、OPTIONS、HEAD或PATCH路由,这些是对Echo的注册路由方法的封装。
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此方法返回一个`Api`实例。
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```
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r.GET("/:id", handler)
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```
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- 以及: ↓
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#### 用`Group()`创建`ApiGroup`,此方法是对`echo.Group()`方法的封装
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```
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g := r.Group("Users", "/users")
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```
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你可以用这个`ApiGroup`来:
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- 设置描述,等。
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```
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g.SetDescription("The desc of group")
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```
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- 为此组中的所有路由设置Security。
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```
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g.SetSecurity("JWT")
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```
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- 获取`echo.Group`实例。
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```
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g.EchoGroup()
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```
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- 以及: ↓
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#### 在`ApiGroup`中注册一个新的路由
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Echoswagger支持GET、POST、PUT、DELETE、OPTIONS、HEAD或PATCH方法,这些是对Echo的注册路由方法的封装。
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```
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a := g.GET("/:id", handler)
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```
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你可以使用此`Api`实例来:
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- 使用以下方法添加参数:
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```
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AddParamPath(p interface{}, name, desc string)
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AddParamPathNested(p interface{})
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AddParamQuery(p interface{}, name, desc string, required bool)
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AddParamQueryNested(p interface{})
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AddParamForm(p interface{}, name, desc string, required bool)
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AddParamFormNested(p interface{})
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AddParamHeader(p interface{}, name, desc string, required bool)
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AddParamHeaderNested(p interface{})
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AddParamBody(p interface{}, name, desc string, required bool)
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AddParamFile(name, desc string, required bool)
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```
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后缀带有`Nested`的方法把参数`p`的字段看做多个参数,所以它必须是结构体类型的。
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例:
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```
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type SearchInput struct {
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Q string `query:"q" swagger:"desc("Keywords"),required"`
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SkipCount int `query:"skipCount"`
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}
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a.AddParamQueryNested(SearchInput{})
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```
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等价于:
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```
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a.AddParamQuery("", "q", "", true).
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AddParamQuery(0, "skipCount", "", false)
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```
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- 添加响应。
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```
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a.AddResponse(http.StatusOK, "response desc", body{}, nil)
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```
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- 设置Security,请求/响应的Content-Type,概要,描述,等。
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```
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a.SetSecurity("JWT").
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SetResponseContentType("application/xml").
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SetSummary("The summary of API").
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SetDescription("The desc of API")
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```
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- 获取`echo.Route`实例。
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```
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a.Route()
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```
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#### 使用swagger标签,你可以在`AddParam...`方法中设置更多信息
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例:
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```
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type User struct {
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Age int `swagger:"min(0),max(99)"`
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Gender string `swagger:"enum(male|female|other),required"`
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Money []float64 `swagger:"default(0),readOnly"`
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}
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a.AddParamBody(&User{}, "Body", "", true)
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```
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此定义等价于:
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```
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{
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"definitions": {
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"User": {
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"type": "object",
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"properties": {
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"Age": {
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"type": "integer",
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"format": "int32",
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"minimum": 0,
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"maximum": 99
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},
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"Gender": {
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"type": "string",
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"enum": [
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"male",
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"female",
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"other"
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],
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"format": "string"
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},
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"Money": {
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"type": "array",
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"items": {
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"type": "number",
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"default": 0,
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"format": "double"
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},
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"readOnly": true
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}
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},
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"required": [
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"Gender"
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]
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}
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}
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}
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```
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**支持的`swagger`标签:**
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Tag | Type | Description
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---|:---:|---
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collect | `string` | 如果类型是数组,确定其格式。可能的值有:<ul><li>`csv` - 逗号分隔的值 `foo,bar`。<li>`ssv` - 空格分隔的值 `foo bar`。<li>`tsv` - tab分隔的值 `foo\tbar`。<li>`pipes` - pipe分隔的值 `foo\|bar`。</ul>默认值是 `csv`。
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desc | `string` | 描述。
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maximum | `number` | -
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minimum | `number` | -
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maxLength | `integer` | -
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minLength | `integer` | -
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allowEmpty | `boolean` | 设置传递空值参数的功能。 这仅对`query`或`formData`参数有效,并允许你发送仅具有名称或空值的参数。默认值为“false”。
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required | `boolean` | 确定此参数是否必需。如果参数是`in`“path”,则此属性默认为“true”。否则,可以设置此属性,其默认值为“false”。
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readOnly | `boolean` | 仅与Schema`"properties"`定义相关。将属性声明为“只读”。这意味着它可以作为响应的一部分发送,但绝不能作为请求的一部分发送。标记为“readOnly”的属性为“true”,不应位于已定义模式的“required”列表中。默认值为“false”。
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enum | [*] | 枚举值,多个值应以“\|”分隔。
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default | * | 默认值,该类型与字段的类型相同。
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## 参考
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[OpenAPI Specification 2.0](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md)
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## License
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[MIT](https://github.com/pangpanglabs/echoswagger/blob/master/LICENSE)
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