feat: Add delay between API requests for block retrieval

app.py

@@ -5,7 +5,7 @@ import plotly.express as px
 from datetime import datetime, timedelta
 import json
 from web3 import Web3
-
+import time
 # RPC URLs
 OPTIMISM_RPC_URL = 'https://opt-mainnet.g.alchemy.com/v2/U5gnXPYxeyH43MJ9tP8ONBQHEDRav7H0'
 BASE_RPC_URL = 'https://base-mainnet.g.alchemy.com/v2/U5gnXPYxeyH43MJ9tP8ONBQHEDRav7H0'
@@ -80,6 +80,7 @@ def get_block_range_for_date(chain_id, date_str, api_key, base_url):
     end_timestamp = int(end_of_day.timestamp())
 
     # Get start block
+
     start_response = requests.get(
         f"{base_url}?module=block&action=getblocknobytime&timestamp={start_timestamp}&closest=before&apikey={api_key}"
     )
@@ -96,6 +97,7 @@ def get_block_range_for_date(chain_id, date_str, api_key, base_url):
     print(f"Start block for chain {chain_id} on {date_str}: {start_block}")
 
     # Get end block
+    time.sleep(1)
     end_response = requests.get(
         f"{base_url}?module=block&action=getblocknobytime&timestamp={end_timestamp}&closest=before&apikey={api_key}"
     )
@@ -137,6 +139,9 @@ def get_transactions(api_keys, wallet_address, chain_name, start_block, end_bloc
 
     response = requests.get(base_url, params=params)
     data = response.json()
+
+    time.sleep(1)
+    
     if data['status'] != '1':
         print(f"Error: {data['message']}")
         return []