first commit

pkg/api/trace/tracemiddleware.go

@@ -0,0 +1,28 @@
+package trace
+
+import (
+	"context"
+
+	"github.com/gin-gonic/gin"
+	"github.com/rs/xid"
+)
+
+const DtalkTraceId = "X-dtalk-tracd-id"
+
+func NewTraceIdWithContext(ctx context.Context) string {
+	logId, ok := ctx.Value(DtalkTraceId).(string)
+	if !ok {
+		logId = xid.New().String()
+	}
+
+	return logId
+}
+
+func TraceMiddleware() gin.HandlerFunc {
+	return func(ctx *gin.Context) {
+		// 或者从 header 中拿
+
+		ctx.Set(DtalkTraceId, NewTraceIdWithContext(ctx))
+		ctx.Next()
+	}
+}