first commit

internal/middleware/otel.go

@@ -0,0 +1,16 @@
+package middleware
+
+import (
+	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/global"
+	"github.com/gin-gonic/gin"
+	"go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin"
+)
+
+// GinOTelMiddleware 为每个 HTTP 请求自动开启 server span。
+func GinOTelMiddleware() gin.HandlerFunc {
+	name := "zt-closet-manage-backend"
+	if global.OtelSetting != nil && global.OtelSetting.ServiceName != "" {
+		name = global.OtelSetting.ServiceName
+	}
+	return otelgin.Middleware(name)
+}