From 1cf5e7343b8cd9c464d09092da0c0becb43467d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gerg=C5=91=20M=C3=B3ricz?= <mo.geryy@gmail.com>
Date: Mon, 28 Jul 2025 20:58:39 +0200
Subject: [PATCH] Revert go version in Dockerfile (#1873)

---
 apps/api/sharedLibs/go-html-to-md/html-to-markdown.go | 11 ++++++++++-
 apps/api/src/lib/html-to-markdown.ts                  |  8 ++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/apps/api/sharedLibs/go-html-to-md/html-to-markdown.go b/apps/api/sharedLibs/go-html-to-md/html-to-markdown.go
index 11776fd67..ca6d82046 100644
--- a/apps/api/sharedLibs/go-html-to-md/html-to-markdown.go
+++ b/apps/api/sharedLibs/go-html-to-md/html-to-markdown.go
@@ -1,7 +1,11 @@
 package main
 
+/*
+#include <stdlib.h>
+*/
+import "C"
 import (
-	"C"
+	"unsafe"
 	// "log"
 
 	md "github.com/tomkosm/html-to-markdown"
@@ -20,6 +24,11 @@ func ConvertHTMLToMarkdown(html *C.char) *C.char {
 	return C.CString(markdown)
 }
 
+//export FreeCString
+func FreeCString(s *C.char) {
+	C.free(unsafe.Pointer(s))
+}
+
 func main() {
 	// This function is required for the main package
 }
diff --git a/apps/api/src/lib/html-to-markdown.ts b/apps/api/src/lib/html-to-markdown.ts
index f7a2b9445..aa63a6b39 100644
--- a/apps/api/src/lib/html-to-markdown.ts
+++ b/apps/api/src/lib/html-to-markdown.ts
@@ -18,10 +18,14 @@ const goExecutablePath = join(
 
 class GoMarkdownConverter {
   private convert: any;
-
+  private free: any;
+  
   private constructor() {
     const lib = koffi.load(goExecutablePath);
-    this.convert = lib.func("ConvertHTMLToMarkdown", "string", ["string"]);
+    this.free = lib.func("FreeCString", "void", ["string"]);
+    const cstn = "CString:" + crypto.randomUUID();
+    const freedResultString = koffi.disposable(cstn, "string", this.free);
+    this.convert = lib.func("ConvertHTMLToMarkdown", freedResultString, ["string"]);
   }
 
   public static async getInstance(): Promise<GoMarkdownConverter> {