From 3a88df8d220afaac25131d71ea9a51e80dcf11fe Mon Sep 17 00:00:00 2001
From: Hassieb Pakzad <68423100+hassiebp@users.noreply.github.com>
Date: Mon, 3 Feb 2025 13:28:54 +0100
Subject: [PATCH] fix(prompts): handle non-json gateway errors (#503)

---
 langfuse-core/src/index.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/langfuse-core/src/index.ts b/langfuse-core/src/index.ts
index 8da35f7b..7d331e8d 100644
--- a/langfuse-core/src/index.ts
+++ b/langfuse-core/src/index.ts
@@ -586,12 +586,12 @@ abstract class LangfuseCoreStateless {
           }
         );
 
-        const data = await res.json();
-
         if (res.status >= 500) {
-          throw new LangfuseFetchHttpError(res, JSON.stringify(data));
+          throw new LangfuseFetchHttpError(res, await res.text());
         }
 
+        const data = await res.json();
+
         return { fetchResult: res.status === 200 ? "success" : "failure", data };
       },
       retryOptions,