131 lines
4.3 KiB
Go
131 lines
4.3 KiB
Go
package swagger
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import (
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"fmt"
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"gitea.redpowerfuture.com/red-future/common/consul"
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"gitea.redpowerfuture.com/red-future/common/http"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/net/ghttp"
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"github.com/gogf/gf/v2/util/gconv"
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"strings"
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)
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type swaggerDoc struct {
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OpenAPI string `json:"openapi"`
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Info map[string]interface{} `json:"info"`
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Paths map[string]interface{} `json:"paths"`
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Components map[string]interface{} `json:"components"`
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// 可以根据需要定义更多字段
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}
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func updateRefsRecursively(data interface{}, serviceName string) {
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switch v := data.(type) {
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case map[string]interface{}:
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for key, value := range v {
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if key == "$ref" {
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refStr, ok := value.(string)
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if ok {
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// 处理 OpenAPI 3.0+ 的引用
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if strings.HasPrefix(refStr, "#/components/schemas/") {
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originalSchemaName := strings.TrimPrefix(refStr, "#/components/schemas/")
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newRef := fmt.Sprintf("#/components/schemas/%s_%s", serviceName, originalSchemaName)
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v[key] = newRef
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}
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// 处理 Swagger 2.0 的引用
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if strings.HasPrefix(refStr, "#/definitions/") {
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originalSchemaName := strings.TrimPrefix(refStr, "#/definitions/")
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newRef := fmt.Sprintf("#/components/schemas/%s_%s", serviceName, originalSchemaName)
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v[key] = newRef
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}
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}
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} else {
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updateRefsRecursively(value, serviceName)
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}
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}
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case []interface{}:
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for _, item := range v {
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updateRefsRecursively(item, serviceName)
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}
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}
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}
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func init() {
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http.Httpserver.SetSwaggerPath("/docs") //api文档访问路径
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http.Httpserver.SetSwaggerUITemplate(`
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="description" content="SwaggerUI"/>
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<title>SwaggerUI</title>
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui.min.css" />
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</head>
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<body>
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<div id="swagger-ui"></div>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/5.10.5/swagger-ui-bundle.js" crossorigin></script>
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<script>
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window.onload = () => {
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window.ui = SwaggerUIBundle({
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url: '/swagger',
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dom_id: '#swagger-ui',
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});
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};
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</script>
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</body>
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</html>
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`)
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http.Httpserver.BindHandler("/swagger", func(r *ghttp.Request) {
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services := g.Cfg().MustGet(r.GetCtx(), "consul.services").Slice()
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aggregatedDoc := &swaggerDoc{
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OpenAPI: "3.0.0", // 假设统一为 3.0.0 版本
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Info: map[string]interface{}{
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"title": "Aggregated API Documentation",
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"version": "1.0.0",
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"description": "This document aggregates Swagger docs from all microservices.",
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},
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Paths: make(map[string]interface{}),
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Components: make(map[string]interface{}),
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}
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for _, v := range services {
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serviceName := gconv.String(gconv.Map(v)["name"])
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instanceAddr, err := consul.GetInstanceAddr(r.GetCtx(), serviceName)
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if err != nil || instanceAddr == "" {
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continue
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}
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targetURL := fmt.Sprintf("%s://%s/api.json", "http", instanceAddr) // 假设文档地址是 /swagger/doc.json
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var svcDoc swaggerDoc
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result := g.Client().GetContent(r.GetCtx(), targetURL)
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gconv.Struct(result, &svcDoc)
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if err != nil {
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continue
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}
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// 1. 合并 Paths，为每个路径添加服务名前缀
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for path, pathItem := range svcDoc.Paths {
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prefixedPath := fmt.Sprintf("/%s%s", serviceName, path)
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updateRefsRecursively(pathItem, serviceName)
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aggregatedDoc.Paths[prefixedPath] = pathItem
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}
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// 2. 合并 Components (Schemas, Responses, etc.)
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// 注意：这里需要处理命名冲突，一个简单的方式是在组件名前加上服务名前缀
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if svcDoc.Components != nil {
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for compType, compDefs := range svcDoc.Components {
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compDefsMap, ok := compDefs.(map[string]interface{})
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if !ok {
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continue
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}
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if _, exists := aggregatedDoc.Components[compType]; !exists {
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aggregatedDoc.Components[compType] = make(map[string]interface{})
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}
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aggregatedCompDefsMap, _ := aggregatedDoc.Components[compType].(map[string]interface{})
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for compName, compValue := range compDefsMap {
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prefixedCompName := fmt.Sprintf("%s_%s", serviceName, compName)
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aggregatedCompDefsMap[prefixedCompName] = compValue
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}
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}
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}
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}
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r.Response.WriteExit(aggregatedDoc)
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})
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}
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