Add exchange api endpoint, fix jwt authtoken var type error

Signed-off-by: Asai Neko <sugar@sne.moe>

service/user/handler.go

@@ -7,7 +7,7 @@ import (
 )
 
 func Handler(r *gin.RouterGroup) {
-	r.Use(middleware.JWTAuth(true), middleware.Permission(5))
+	r.Use(middleware.JWTAuth(), middleware.Permission(5))
 	r.GET("/info", Info)
 	r.PATCH("/update", Update)
 	r.GET("/list", middleware.Permission(20), List)