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Added check for block timestamp #3

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Added check for block timestamp #3

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20 changes: 20 additions & 0 deletions web3/providers/rpc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
from requests import (
RequestException,
)
from datetime import datetime
from typing import (
Any,
Dict,
Expand Down Expand Up @@ -64,6 +65,7 @@ def __init__(
randomize: Optional[bool] = False,
request_kwargs: Optional[Any] = None,
session: Optional[Any] = None,
block_timeout_sec: Optional[int] = None,
) -> None:
if isinstance(providers, str):
providers = [
Expand All @@ -72,6 +74,7 @@ def __init__(
self.randomize = randomize
self.providers = providers
self._request_kwargs = request_kwargs or {}
self.block_timeout_sec = block_timeout_sec

if session:
cache_session(self.providers[0], session)
Expand Down Expand Up @@ -104,6 +107,23 @@ def make_request(self, method: RPCEndpoint, params: Any) -> RPCResponse:
"Making request HTTP. URI: %s, Method: %s", provider_uri, method
)
try:
if self.block_timeout_sec:
request_data_for_block = self.encode_rpc_request(
"eth_getBlockByNumber", ("latest", False)
)
raw_response = make_post_request(
provider_uri,
request_data_for_block,
**self.get_request_kwargs()
)
response = self.decode_rpc_response(raw_response)
last_block_timestamp = int(
response.get("result").get("timestamp"), base=16
)
now_timestamp = datetime.now().timestamp()
if now_timestamp - last_block_timestamp > self.block_timeout_sec:
continue

raw_response = make_post_request(
provider_uri, request_data, **self.get_request_kwargs()
)
Expand Down