feat: [KAN-49] add vaidateClient middleware to common (#8)

Author: lianjin

.github/ci/docker-compose.yml

@@ -3,8 +3,8 @@ services:
     image: mysql:8.0
     container_name: mysql-container
     environment:
-      MYSQL_ROOT_PASSWORD: 123456
-      MYSQL_DATABASE: user_db
+      - MYSQL_ROOT_PASSWORD=${MYSQL_PASSWORD}
+      - MYSQL_DATABASE=user_db
     # Pure memory, disappears when CI ends
     tmpfs: /var/lib/mysql
     networks:

common/middleware/client_validate.go

@@ -0,0 +1,15 @@
+package middleware
+
+import "github.com/gin-gonic/gin"
+
+func ValidateClient() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		client := c.Param("client")
+		if client != "merchant" && client != "customer" {
+			c.JSON(400, gin.H{"error": "Invalid client type"})
+			c.Abort()
+			return
+		}
+		c.Next()
+	}
+}

server/go.mod

@@ -3,7 +3,7 @@ module github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/server
 go 1.24.0
 
 require (
-	github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20250926094305-623423bdf292
+	github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20251001113629-170f5abf70f9
 	github.com/gin-gonic/gin v1.11.0
 	github.com/go-playground/validator/v10 v10.27.0
 	github.com/spf13/viper v1.21.0

server/go.sum

@@ -4,6 +4,8 @@ github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
 github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20250926094305-623423bdf292 h1:aQ28fQMiJAkWqLyBUdQ1KuF6xaorqRKYQA9OvLrX/Pw=
 github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20250926094305-623423bdf292/go.mod h1:37OvOYo/KVtH7LdbUnKLitzsC6qE6LCGF6sgaFHzE7E=
+github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20251001113629-170f5abf70f9 h1:b7OCJwxzv4hhTMZInbS8UnSYSlGRPK0fwQ4ZOFMi/2Y=
+github.com/NUS-ISS-Agile-Team/ceramicraft-user-mservice/common v0.0.0-20251001113629-170f5abf70f9/go.mod h1:37OvOYo/KVtH7LdbUnKLitzsC6qE6LCGF6sgaFHzE7E=
 github.com/bytedance/gopkg v0.1.3 h1:TPBSwH8RsouGCBcMBktLt1AymVo2TVsBVCY4b6TnZ/M=
 github.com/bytedance/gopkg v0.1.3/go.mod h1:576VvJ+eJgyCzdjS+c4+77QF3p7ubbtiKARP3TxducM=
 github.com/bytedance/sonic v1.14.1 h1:FBMC0zVz5XUmE4z9wF4Jey0An5FueFvOsTKKKtwIl7w=

server/http/router/router.go

@@ -39,17 +39,18 @@ func NewRouter() *gin.Engine {
 			})
 		})
 	}
+	parentGroup := basicGroup.Group("/:client")
+	parentGroup.Use(middleware.ValidateClient())
 
-	v1UnAuthed := r.Group(serviceURIPrefix + "/:client")
+	v1UnAuthed := parentGroup.Group("")
 	{
-		v1UnAuthed.Use(validateClient())
 		v1UnAuthed.POST("/login", api.UserLogin)
 		v1UnAuthed.POST("/users", api.Register)
 		v1UnAuthed.PUT("/users/activate", api.Validate)
 	}
-	v1Authed := r.Group(serviceURIPrefix + "/:client")
+	v1Authed := parentGroup.Group("")
 	{
-		v1Authed.Use(validateClient(), middleware.AuthMiddleware())
+		v1Authed.Use(middleware.AuthMiddleware())
 		v1Authed.POST("/logout", api.UserLogout)
 	}
 	return r
@@ -67,15 +68,3 @@ var passwordStrengthValidator validator.Func = func(fl validator.FieldLevel) boo
 
 	return hasLetter && hasDigit && isValidLength
 }
-
-func validateClient() gin.HandlerFunc {
-	return func(c *gin.Context) {
-		client := c.Param("client")
-		if client != "merchant" && client != "customer" {
-			c.JSON(400, gin.H{"error": "Invalid client type"})
-			c.Abort()
-			return
-		}
-		c.Next()
-	}
-}