Nomad changes

docs/snippets/go/plugins/plugin_validator.md

@@ -0,0 +1,35 @@
+```go title="Go"
+package main
+
+/*
+#cgo CFLAGS: -I${SRCDIR}/../../../crates/kreuzberg-ffi
+#cgo LDFLAGS: -L${SRCDIR}/../../../target/release -lkreuzberg_ffi
+#include "../../../crates/kreuzberg-ffi/kreuzberg.h"
+#include <stdlib.h>
+*/
+import "C"
+import (
+	"log"
+	"unsafe"
+
+	"github.com/kreuzberg-dev/kreuzberg/packages/go/v5"
+)
+
+//export customValidator
+func customValidator(resultJSON *C.char) *C.char {
+	// Inspect resultJSON, return error message or NULL
+	return nil
+}
+
+func main() {
+	if err := kreuzberg.RegisterValidator("go-validator", 50, (C.ValidatorCallback)(C.customValidator)); err != nil {
+		log.Fatalf("register validator failed: %v", err)
+	}
+
+	result, err := kreuzberg.ExtractFileSync("document.pdf", nil)
+	if err != nil {
+		log.Fatalf("extract failed: %v", err)
+	}
+	log.Printf("Content length: %d", len(result.Content))
+}
+```