240 lines
5.6 KiB
Go
240 lines
5.6 KiB
Go
package backend
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import (
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"fmt"
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"net"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"sync"
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"time"
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)
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type SwaggerFile struct {
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Name string `json:"name"`
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Path string `json:"path"`
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Size int64 `json:"size"`
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ModifiedTime string `json:"modifiedTime"`
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}
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type SwaggerServer struct {
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server *http.Server
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port int
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running bool
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mu sync.Mutex
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}
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var swaggerServer *SwaggerServer
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var swaggerServerMu sync.Mutex
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func (a *App) GetSwaggerFiles(dirPath string) ([]SwaggerFile, error) {
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if dirPath == "" {
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return nil, fmt.Errorf("directory path is empty")
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}
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var files []SwaggerFile
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err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if info.IsDir() {
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return nil
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}
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if strings.HasSuffix(strings.ToLower(info.Name()), ".swagger.json") {
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files = append(files, SwaggerFile{
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Name: info.Name(),
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Path: path,
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Size: info.Size(),
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ModifiedTime: info.ModTime().Format("2006-01-02 15:04:05"),
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})
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}
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return nil
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})
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if err != nil {
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return nil, fmt.Errorf("failed to walk directory: %w", err)
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}
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return files, nil
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}
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func (a *App) ReadSwaggerFile(filePath string) (string, error) {
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if filePath == "" {
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return "", fmt.Errorf("file path is empty")
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}
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content, err := os.ReadFile(filePath)
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if err != nil {
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return "", fmt.Errorf("failed to read file: %w", err)
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}
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return string(content), nil
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}
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func (a *App) StartSwaggerServer(dirPath string) (string, error) {
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if dirPath == "" {
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return "", fmt.Errorf("directory path is empty")
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}
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swaggerServerMu.Lock()
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defer swaggerServerMu.Unlock()
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if swaggerServer != nil && swaggerServer.running {
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return fmt.Sprintf("http://localhost:%d", swaggerServer.port), nil
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}
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port := 8080
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for i := 0; i < 100; i++ {
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listener, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
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if err == nil {
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listener.Close()
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break
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}
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port++
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}
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mux := http.NewServeMux()
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mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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swaggerHTML := `<!DOCTYPE html>
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<html lang="zh-CN">
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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=1.0">
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<title>Swagger UI</title>
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<link rel="stylesheet" type="text/css" href="https://unpkg.com/swagger-ui-dist@5.10.5/swagger-ui.css">
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<style>
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html { box-sizing: border-box; overflow: -moz-scrollbars-vertical; overflow-y: scroll; }
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*, *:before, *:after { box-sizing: inherit; }
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body { margin: 0; background: #fafafa; }
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.topbar { display: none; }
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.swagger-ui .topbar { display: none; }
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</style>
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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://unpkg.com/swagger-ui-dist@5.10.5/swagger-ui-bundle.js"></script>
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<script>
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window.onload = function() {
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const urlParams = new URLSearchParams(window.location.search);
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const fileParam = urlParams.get('file');
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const swaggerUrl = fileParam ? '/swagger.json?file=' + encodeURIComponent(fileParam) : '/swagger.json';
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const ui = SwaggerUIBundle({
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url: swaggerUrl,
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dom_id: '#swagger-ui',
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presets: [
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SwaggerUIBundle.presets.apis,
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SwaggerUIBundle.SwaggerUIStandalonePreset
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],
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layout: "BaseLayout",
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deepLinking: true,
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showExtensions: true,
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showCommonExtensions: true,
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docExpansion: "list",
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filter: true,
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tryItOutEnabled: true
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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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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.Write([]byte(swaggerHTML))
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})
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mux.HandleFunc("/swagger.json", func(w http.ResponseWriter, r *http.Request) {
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files, err := a.GetSwaggerFiles(dirPath)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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if len(files) == 0 {
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http.Error(w, "No swagger files found", http.StatusNotFound)
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return
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}
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fileName := r.URL.Query().Get("file")
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selectedFile := files[0]
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if fileName != "" {
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for _, file := range files {
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if file.Name == fileName {
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selectedFile = file
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break
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}
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}
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}
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content, err := os.ReadFile(selectedFile.Path)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Write(content)
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})
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server := &http.Server{
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Addr: fmt.Sprintf(":%d", port),
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Handler: mux,
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ReadTimeout: 15 * time.Second,
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WriteTimeout: 15 * time.Second,
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}
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swaggerServer = &SwaggerServer{
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server: server,
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port: port,
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running: true,
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}
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go func() {
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if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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fmt.Printf("Swagger server error: %v\n", err)
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}
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}()
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return fmt.Sprintf("http://localhost:%d", port), nil
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}
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func (a *App) StopSwaggerServer() error {
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swaggerServerMu.Lock()
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defer swaggerServerMu.Unlock()
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if swaggerServer == nil || !swaggerServer.running {
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return nil
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}
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if err := swaggerServer.server.Close(); err != nil {
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return fmt.Errorf("failed to stop server: %w", err)
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}
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swaggerServer.running = false
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return nil
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}
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func (a *App) IsSwaggerServerRunning() bool {
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swaggerServerMu.Lock()
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defer swaggerServerMu.Unlock()
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if swaggerServer == nil {
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return false
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}
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return swaggerServer.running
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}
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func (a *App) GetSwaggerServerURL() string {
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swaggerServerMu.Lock()
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defer swaggerServerMu.Unlock()
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if swaggerServer == nil || !swaggerServer.running {
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return ""
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}
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return fmt.Sprintf("http://localhost:%d", swaggerServer.port)
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}
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