fix: Leading whitespace chunks break partial parser

openai · Dec 5, 2024 · 7327a60 · 7327a60
1 parent ddb27b6
commit 7327a60
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/lib/ChatCompletionStream.ts b/src/lib/ChatCompletionStream.ts
@@ -509,7 +509,9 @@ export class ChatCompletionStream<ParsedT = null>
         choice.message.content = (choice.message.content || '') + content;
 
         if (!choice.message.refusal && this.#getAutoParseableResponseFormat()) {
-          choice.message.parsed = partialParse(choice.message.content);
+          // Even a partial parser does not accept empty string
+          const trimmed = choice.message.content.trimStart();
+          choice.message.parsed = trimmed ? partialParse(trimmed) : null;
         }
       }