first commit

pkg/swaggerui/initializer.go

@@ -0,0 +1,60 @@
+package swaggerui
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	swaggerFiles "github.com/swaggo/files"
+	ginSwagger "github.com/swaggo/gin-swagger"
+)
+
+const initializerJS = `window.onload = function() {
+  const ui = SwaggerUIBundle({
+    url: "doc.json",
+    dom_id: '#swagger-ui',
+    validatorUrl: null,
+    persistAuthorization: true,
+    presets: [
+      SwaggerUIBundle.presets.apis,
+      SwaggerUIStandalonePreset
+    ],
+    plugins: [
+      SwaggerUIBundle.plugins.DownloadUrl
+    ],
+    layout: "StandaloneLayout",
+    docExpansion: "list",
+    deepLinking: true,
+    defaultModelsExpandDepth: 1,
+    requestInterceptor: function(request) {
+      const auth = request.headers.Authorization || request.headers.authorization
+
+      if (typeof auth === 'string') {
+        const trimmed = auth.trim()
+
+        if (trimmed !== '' && !/^Bearer\s+/i.test(trimmed)) {
+          request.headers.Authorization = 'Bearer ' + trimmed
+        }
+      }
+
+      return request
+    }
+  })
+
+  window.ui = ui
+}
+`
+
+// Handler serves Swagger UI and overrides the initializer script to prefix raw tokens with Bearer.
+func Handler() gin.HandlerFunc {
+	defaultHandler := ginSwagger.WrapHandler(swaggerFiles.Handler, ginSwagger.PersistAuthorization(true))
+
+	return func(c *gin.Context) {
+		if strings.HasSuffix(c.Request.URL.Path, "/swagger-initializer.js") {
+			c.Data(http.StatusOK, "application/javascript", []byte(initializerJS))
+			return
+		}
+
+		defaultHandler(c)
+	}
+}