基本介绍
GoFrame 的 Server 默认自带的 OpenAPI 接口文档UI是 redoc 开源组件，该组件不支持页面 Try It Out 功能的。很多同学都在问，能否使用 SwaggerUI 页面来展示 OpenAPI 接口文档？有的企业内部并不支持连接外网的部分资源，那么能否将内部的接口文档UI替换为内部可访问的资源呢？
了解 OpenAPI 这个东东的小伙伴应该都知道， OpenAPI 只是通用的接口定义规范，而展示的接口文档UI是可以随便替换的，
并且这种UI界面以及平台还特别多！使用 GoFrame Server 来切换接口文档UI页面，
或者将接口文档对接到第三方接口文档平台非常简单！
使用示例
咱们通过代码来展示一下，如何快速地将接口文档UI切换为 SwaggerUI。 SwaggerUI 的相关链接：
- https://github.com/swagger-api/swagger-ui
- https://github.com/swagger-api/swagger-ui/blob/master/docs/usage/installation.md
main.go
package main
import (
"context"
"fmt"
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/net/ghttp"
)
// HelloReq hello request
type HelloReq struct {
g.Meta `path:"/hello" method:"get" sort:"1"`
Name string `v:"required" dc:"Your name"`
}
// HelloRes hello response
type HelloRes struct {
Reply string `dc:"Reply content"`
}
// Hello Controller
type Hello struct{}
// Say function
func (Hello) Say(ctx context.Context, req *HelloReq) (res *HelloRes, err error) {
g.Log().Debugf(ctx, `receive say: %+v`, req)
res = &HelloRes{
Reply: fmt.Sprintf(`Hi %s`, req.Name),
}
return
}
const (
MySwaggerUITemplate = `
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="SwaggerUI"/>
<title>SwaggerUI</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui.min.css" />
</head>
<body>
<div id="swagger-ui"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui-bundle.js" crossorigin></script>
<script>
window.onload = () => {
window.ui = SwaggerUIBundle({
url: '{SwaggerUIDocUrl}',
dom_id: '#swagger-ui',
});
};
</script>
</body>
</html>
`
)
func main() {
s := g.Server()
s.Use(ghttp.MiddlewareHandlerResponse)
s.Group("/", func(group *ghttp.RouterGroup) {
group.Bind(
new(Hello),
)
})
s.SetSwaggerUITemplate(MySwaggerUITemplate)
s.Run()
}config.yaml
server:
address: ":8199"
openapiPath: "/api.json"
swaggerPath: "/swagger"我们这里只定义了一个 Hello 的接口。可以看到，我们通过一个接口来展示 SwaggerUI 的 HTML 页面，并且将 OpenAPI 的接口文件路径定义为 /api.json，没有启用 Server 自带的UI页面。执行后，终端输出：
2022-05-18 20:41:09.160 [INFO] openapi specification is serving at address: http://127.0.0.1:8199/api.json
2022-05-18 20:41:09.161 [INFO] pid[57888]: http server started listening on [:8199]
ADDRESS | METHOD | ROUTE | HANDLER | MIDDLEWARE
----------|--------|-----------|-----------------------------------------------------------------|--------------------
:8199 | ALL | /* | github.com/gogf/gf/v2/net/ghttp.internalMiddlewareServerTracing | GLOBAL MIDDLEWARE
----------|--------|-----------|-----------------------------------------------------------------|--------------------
:8199 | ALL | /api.json | github.com/gogf/gf/v2/net/ghttp.(*Server).openapiSpec |
----------|--------|-----------|-----------------------------------------------------------------|--------------------
:8199 | GET | /hello | main.(*Hello).Say |
----------|--------|-----------|-----------------------------------------------------------------|--------------------
:8199 | GET | /swagger | main.main.func1.1 |
----------|--------|-----------|-----------------------------------------------------------------|--------------------戳此链接访问： http://127.0.0.1:8199/swagger/
页面展示如下：
开发者自定义其他的接口文档UI类似如此。
常见UI模板
swagger-ui
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="SwaggerUI"/>
<title>SwaggerUI</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui.min.css" />
</head>
<body>
<div id="swagger-ui"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui-bundle.js" crossorigin></script>
<script>
window.onload = () => {
window.ui = SwaggerUIBundle({
url: '{SwaggerUIDocUrl}',
dom_id: '#swagger-ui',
});
};
</script>
</body>
</html>openapi-ui
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>openAPI UI</title>
</head>
<body>
<div id="openapi-ui-container" spec-url="{SwaggerUIDocUrl}" theme="light"></div>
<script src="https://cdn.jsdelivr.net/npm/openapi-ui-dist@latest/lib/openapi-ui.umd.js"></script>
</body>
</html>