From e93c4becafcf1bf3f81e8f7e4689754c9231ae85 Mon Sep 17 00:00:00 2001
From: trizin <25263018+trizin@users.noreply.github.com>
Date: Wed, 10 Jan 2024 14:42:35 +0300
Subject: [PATCH] Implement a delay to pause and retry in case of network
 errors (#491)

---
 pdr_backend/util/web3_config.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pdr_backend/util/web3_config.py b/pdr_backend/util/web3_config.py
index 33be53b32..c05e1cc03 100644
--- a/pdr_backend/util/web3_config.py
+++ b/pdr_backend/util/web3_config.py
@@ -1,3 +1,5 @@
+import time
+
 from typing import Optional
 
 from enforce_typing import enforce_types
@@ -44,5 +46,8 @@ def get_block(
             print(f"An error occured while getting block, error: {e}")
             if tries < WEB3_MAX_TRIES:
                 print("Trying again...")
+                # sleep times for the first 5 tries:
+                # 2.5, 10.0, 22.5, 40.0, 62.5
+                time.sleep(((tries + 1) / 2) ** (2) * 10)
                 return self.get_block(block, full_transactions, tries + 1)
             raise Exception("Couldn't get block") from e