From c09e62eed2c7dc1b6933933b6eba78981a0d133e Mon Sep 17 00:00:00 2001
From: daveusa <109542778+alteralt@users.noreply.github.com>
Date: Tue, 17 Jan 2023 16:00:29 +0300
Subject: [PATCH] Add exception TransactionNotFoundError in
 get_transaction_details method

---
 blockcypher/api.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/blockcypher/api.py b/blockcypher/api.py
index 5539f0e..568f0e1 100644
--- a/blockcypher/api.py
+++ b/blockcypher/api.py
@@ -53,11 +53,19 @@
 '''
 
 
-class RateLimitError(RuntimeError):
+class BlockcypherAPIError(Exception):
+    pass
+
+
+class RateLimitError(BlockcypherAPIError):
     ''' Raised when the library makes too many API calls '''
     pass
 
 
+class TransactionNotFoundError(BlockcypherAPIError):
+    pass
+
+
 def get_valid_json(request, allow_204=False):
     if request.status_code == 429:
         raise RateLimitError('Status Code 429', request.text)
@@ -464,6 +472,10 @@ def get_transaction_details(tx_hash, coin_symbol='btc', limit=None, tx_input_off
         # format this string as a datetime object
         response_dict['received'] = parser.parse(response_dict['received'])
 
+    if "error" in response_dict:
+        if response_dict["error"].startswith("Transaction") and response_dict["error"].endswith("not found."):
+            raise TransactionNotFoundError(response_dict["error"])
+
     return response_dict