From 41087704a91f9e9d34020b5c27e0cf20a6952426 Mon Sep 17 00:00:00 2001
From: Christian Clauss <cclauss@me.com>
Date: Thu, 21 Jan 2021 15:52:07 +0100
Subject: [PATCH] Improve Amazon error detection (#4402)

---
 openlibrary/core/vendors.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/openlibrary/core/vendors.py b/openlibrary/core/vendors.py
index 52bf06e7461..671b8095c83 100644
--- a/openlibrary/core/vendors.py
+++ b/openlibrary/core/vendors.py
@@ -272,10 +272,13 @@ def _get_amazon_metadata(id_, id_type='isbn', resources=None):
 
     try:
         r = requests.get('http://%s/isbn/%s' % (affiliate_server_url, id_))
+        r.raise_for_status()
         return r.json().get('hit') or None
     except requests.exceptions.ConnectionError:
         logger.exception("Affiliate Server unreachable")
-        return None
+    except requests.exceptions.HTTPError:
+        logger.exception("Affiliate Server: id {} not found".format(id_))
+    return None
 
 
 def split_amazon_title(full_title):