Add support for swagger-ui persist-authorization (#2)

swagger.go

@@ -16,10 +16,11 @@ import (
 // Config stores echoSwagger configuration variables.
 type Config struct {
 	// The url pointing to API definition (normally swagger.json or swagger.yaml). Default is `mockedSwag.json`.
-	URL          string
-	DeepLinking  bool
-	DocExpansion string
-	DomID        string
+	URL                  string
+	DeepLinking          bool
+	DocExpansion         string
+	DomID                string
+	PersistAuthorization bool
 }
 
 // URL presents the url pointing to API definition (normally swagger.json or swagger.yaml).
@@ -50,6 +51,14 @@ func DomID(domID string) func(c *Config) {
 	}
 }
 
+// If set to true, it persists authorization data and it would not be lost on browser close/refresh
+// Defaults to false
+func PersistAuthorization(persistAuthorization bool) func(c *Config) {
+	return func(c *Config) {
+		c.PersistAuthorization = persistAuthorization
+	}
+}
+
 // WrapHandler wraps swaggerFiles.Handler and returns echo.HandlerFunc
 var WrapHandler = FiberWrapHandler()
 
@@ -196,6 +205,7 @@ window.onload = function() {
     deepLinking: {{.DeepLinking}},
     docExpansion: "{{.DocExpansion}}",
     dom_id: "{{.DomID}}",
+    persistAuthorization: {{.PersistAuthorization}},
     validatorUrl: null,
     presets: [
       SwaggerUIBundle.presets.apis,

swagger_test.go

@@ -307,3 +307,11 @@ func TestDomID(t *testing.T) {
 	configFunc(&cfg)
 	assert.Equal(t, expected, cfg.DomID)
 }
+
+func TestPersistAuthorization(t *testing.T) {
+	expected := true
+	cfg := Config{}
+	configFunc := PersistAuthorization(expected)
+	configFunc(&cfg)
+	assert.Equal(t, expected, cfg.PersistAuthorization)
+}