sse support

internal/server/middleware/chain.go

@@ -0,0 +1,16 @@
+package middleware
+
+import (
+	"ruben/inventory2/internal/server/response"
+)
+
+func Chain(ms ...response.Middleware) response.Middleware {
+	return func(fn response.HandlerFunc) response.HandlerFunc {
+		res := fn
+		for _, m := range ms {
+			prev := res
+			res = m(prev)
+		}
+		return res
+	}
+}