fix: 429 issue on chain ID request #100

.pre-commit-config.yaml

@@ -22,13 +22,13 @@ repos:
         additional_dependencies: [flake8-breakpoint, flake8-print, flake8-pydantic, flake8-type-checking]
 
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.13.0
+    rev: v1.14.1
     hooks:
     -   id: mypy
         additional_dependencies: [types-PyYAML, types-requests, types-setuptools, pydantic]
 
 -   repo: https://github.com/executablebooks/mdformat
-    rev: 0.7.19
+    rev: 0.7.21
     hooks:
     -   id: mdformat
         additional_dependencies: [mdformat-gfm, mdformat-frontmatter, mdformat-pyproject]

ape_infura/provider.py

@@ -1,15 +1,13 @@
 import os
 import random
-import time
-from collections.abc import Callable
 from functools import cached_property
 from typing import Optional
 
 from ape.api import UpstreamProvider
 from ape.exceptions import ContractLogicError, ProviderError, VirtualMachineError
-from ape.logging import logger
+from ape.utils.rpc import request_with_retry
 from ape_ethereum.provider import Web3Provider
-from requests import HTTPError, Session
+from requests import Session
 from web3 import HTTPProvider, Web3
 from web3.exceptions import ContractLogicError as Web3ContractLogicError
 from web3.exceptions import ExtraDataLengthError
@@ -140,9 +138,21 @@ def ws_uri(self) -> Optional[str]:
     def connection_str(self) -> str:
         return self.uri
 
-    @property
+    @cached_property
     def chain_id(self):
-        return _run_with_retry(lambda: self._web3.eth.chain_id)
+        return request_with_retry(
+            lambda: self._get_chain_id(),
+            max_retries=_MAX_REQUEST_RETRIES,
+            min_retry_delay=_REQUEST_RETRY_DELAY * 1_000,
+        )
+
+    def _get_chain_id(self):
+        result = self.make_request("eth_chainId", [])
+        if isinstance(result, int):
+            return result
+
+        # Is a hex.
+        return int(result, 16)
 
     def connect(self):
         session = _get_session()
@@ -232,22 +242,3 @@ def get_virtual_machine_error(self, exception: Exception, **kwargs) -> VirtualMa
 
 def _create_web3(http_provider: HTTPProvider) -> Web3:
     return Web3(http_provider)
-
-
-def _run_with_retry(
-    func: Callable, max_retries: int = _MAX_REQUEST_RETRIES, retry_delay: int = _REQUEST_RETRY_DELAY
-):
-    retries = 0
-    while retries < max_retries:
-        try:
-            return func()
-        except HTTPError as err:
-            if err.response.status_code == 429:
-                logger.debug(f"429 Too Many Requests. Retrying in {retry_delay} seconds...")
-                time.sleep(retry_delay)
-                retries += 1
-                retry_delay += retry_delay
-            else:
-                raise  # Re-raise non-429 HTTP errors
-
-    raise ProviderError(f"Exceeded maximum retries ({max_retries}).")

pyproject.toml

@@ -20,7 +20,6 @@ include = '\.pyi?$'
 
 [tool.pytest.ini_options]
 addopts = """
-    -p no:ape_test
     --cov-branch
     --cov-report term
     --cov-report html

setup.py

@@ -19,15 +19,15 @@
     ],
     "lint": [
         "black>=24.10.0,<25",  # Auto-formatter and linter
-        "mypy>=1.13.0,<2",  # Static type analyzer
+        "mypy>=1.14.1,<2",  # Static type analyzer
         "types-setuptools",  # Needed for mypy type shed
         "flake8>=7.1.1,<8",  # Style linter
         "flake8-breakpoint>=1.1.0,<2",  # Detect breakpoints left in code
         "flake8-print>=5.0.0,<6",  # Detect print statements left in code
         "flake8-pydantic",  # For detecting issues with Pydantic models
         "flake8-type-checking",  # Detect imports to move in/out of type-checking blocks
         "isort>=5.13.2,<6",  # Import sorting linter
-        "mdformat>=0.7.19",  # Auto-formatter for markdown
+        "mdformat>=0.7.21",  # Auto-formatter for markdown
         "mdformat-gfm>=0.3.5",  # Needed for formatting GitHub-flavored markdown
         "mdformat-frontmatter>=0.4.1",  # Needed for frontmatters-style headers in issue templates
         "mdformat-pyproject>=0.0.2",  # Allows configuring in pyproject.toml

tests/conftest.py

@@ -1,26 +1,10 @@
-import ape
 import pytest
 
 from ape_infura import NETWORKS
 
 NETWORK_SKIPS = ("starknet",)
 
 
-@pytest.fixture
-def accounts():
-    return ape.accounts
-
-
-@pytest.fixture
-def Contract():
-    return ape.Contract
-
-
-@pytest.fixture
-def networks():
-    return ape.networks
-
-
 # NOTE: Using a `str` as param for better pytest test-case name generation.
 @pytest.fixture(
     params=[f"{e}:{n}" for e, values in NETWORKS.items() if e not in NETWORK_SKIPS for n in values]

tests/test_provider.py

@@ -119,6 +119,13 @@ def test_dynamic_poa_check(mocker):
     infura = Infura(name=real.name, network=real.network)
     patch = mocker.patch("ape_infura.provider._create_web3")
     patch.return_value = mock_web3
+
+    def make_request(rpc, arguments):
+        if rpc == "eth_chainId":
+            return {"result": "0x4268"}
+
+    mock_web3.provider.make_request.side_effect = make_request
+
     infura.connect()
     mock_web3.middleware_onion.inject.assert_called_once_with(ExtraDataToPOAMiddleware, layer=0)
 
@@ -128,3 +135,43 @@ def test_api_secret():
     session = _get_session()
     assert session.auth == ("", "123")
     del os.environ["WEB3_INFURA_PROJECT_SECRET"]
+
+
+def test_chain_id(networks):
+    with networks.ethereum.sepolia.use_provider("infura") as infura:
+        assert infura.chain_id == 11155111
+
+    with networks.ethereum.holesky.use_provider("infura") as infura:
+        assert infura.chain_id == 17000
+
+
+def test_chain_id_cached(mocker, networks):
+    """
+    A test just showing we utilize a cached chain ID
+    to limit unnecessary requests.
+    """
+
+    infura = networks.ethereum.sepolia.get_provider("infura")
+    infura.connect()
+
+    class ChainIdTracker:
+        call_count = 0
+
+        def make_request(self, rpc, arguments):
+            if rpc == "eth_chainId":
+                self.call_count += 1
+                return {"result": "0x4268"}
+
+    tracker = ChainIdTracker()
+    mock_web3 = mocker.MagicMock()
+    mock_web3.provider.make_request.side_effect = tracker.make_request
+    infura._web3 = mock_web3
+
+    # Start off fresh for the sake of the test.
+    infura.__dict__.pop("chain_id")
+
+    _ = infura.chain_id
+    _ = infura.chain_id  # Call again!
+    _ = infura.chain_id  # Once more!
+
+    assert tracker.call_count == 1