fix: improve error handling for remote engine (#1975)

Co-authored-by: sangjanai <[email protected]>

Author: vansangpfiev

engine/extensions/remote-engine/remote_engine.cc

@@ -29,7 +29,11 @@ size_t StreamWriteCallback(char* ptr, size_t size, size_t nmemb,
   CTL_DBG(chunk);
   Json::Value check_error;
   Json::Reader reader;
-  if (reader.parse(chunk, check_error)) {
+  context->chunks += chunk;
+  if (reader.parse(context->chunks, check_error) ||
+      (reader.parse(chunk, check_error) &&
+       chunk.find("error") != std::string::npos)) {
+    CTL_WRN(context->chunks);
     CTL_WRN(chunk);
     CTL_INF("Request: " << context->last_request);
     Json::Value status;

engine/extensions/remote-engine/remote_engine.h

@@ -26,6 +26,7 @@ struct StreamContext {
   std::string stream_template;
   bool need_stop = true;
   std::string last_request;
+  std::string chunks;
 };
 struct CurlResponse {
   std::string body;