fix: remove hard code for cache.

examples/auto-tls/main.go

@@ -2,16 +2,19 @@ package main
 
 import (
 	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/acme/autocert"
 )
 
 func main() {
 	r := gin.Default()
 
+	gin.AutoTLSManager.Cache = autocert.DirCache("/var/www/.cache")
+
 	// Ping handler
 	r.GET("/ping", func(c *gin.Context) {
 		c.String(200, "pong")
 	})
 
 	// Listen and Server in 0.0.0.0:443
-	r.RunAutoTLS(":443", "/var/www/.cache", "example.com")
+	r.RunAutoTLS("example.com")
 }

gin1.7.go

@@ -9,30 +9,26 @@ import (
 	"golang.org/x/crypto/acme/autocert"
 )
 
+var AutoTLSManager = autocert.Manager{
+	Prompt: autocert.AcceptTOS,
+}
+
 // RunAutoTLS attaches the router to a http.Server and starts listening and serving HTTPS (secure) requests.
 // It obtains and refreshes certificates automatically,
 // as well as providing them to a TLS server via tls.Config.
 // only from Go version 1.7 onward
-func (engine *Engine) RunAutoTLS(addr string, cache string, domain ...string) (err error) {
-	debugPrint("Listening and serving HTTPS on %s and host name is %s\n", addr, domain)
+func (engine *Engine) RunAutoTLS(domain ...string) (err error) {
+	debugPrint("Listening and serving HTTPS on host name is %s\n", domain)
 	defer func() { debugPrintError(err) }()
-	m := autocert.Manager{
-		Prompt: autocert.AcceptTOS,
-	}
 
 	//your domain here
 	if len(domain) != 0 {
-		m.HostPolicy = autocert.HostWhitelist(domain...)
-	}
-
-	// folder for storing certificates
-	if cache != "" {
-		m.Cache = autocert.DirCache(cache)
+		AutoTLSManager.HostPolicy = autocert.HostWhitelist(domain...)
 	}
 
 	s := &http.Server{
-		Addr:      addr,
-		TLSConfig: &tls.Config{GetCertificate: m.GetCertificate},
+		Addr:      ":443",
+		TLSConfig: &tls.Config{GetCertificate: AutoTLSManager.GetCertificate},
 		Handler:   engine,
 	}
 	err = s.ListenAndServeTLS("", "")