New: ServiceBase migrated from shortener

middleware/cors.go

@@ -0,0 +1,17 @@
+package middleware
+
+import (
+	connectcors "connectrpc.com/cors"
+	"github.com/rs/cors"
+)
+
+// NewCORS returns a standard CORS handler pre-configured for Connect-RPC endpoints.
+func NewCORS(allowedOrigins []string) *cors.Cors {
+	return cors.New(cors.Options{
+		AllowedOrigins: allowedOrigins,
+		AllowedMethods: connectcors.AllowedMethods(),
+		AllowedHeaders: connectcors.AllowedHeaders(),
+		ExposedHeaders: connectcors.ExposedHeaders(),
+		MaxAge:         7200,
+	})
+}