sungwy commented on code in PR #2244:
URL: https://github.com/apache/iceberg-python/pull/2244#discussion_r2278062821
##########
pyiceberg/catalog/rest/auth.py:
##########
@@ -121,6 +125,98 @@ def auth_header(self) -> str:
return f"Bearer {self._token}"
+class OAuth2TokenProvider:
+ """Thread-safe OAuth2 token provider with token refresh support."""
+
+ client_id: str
+ client_secret: str
+ token_url: str
+ scope: Optional[str]
+ refresh_margin: int
+ expires_in: Optional[int]
+
+ _token: Optional[str]
+ _expires_at: int
+ _lock: threading.Lock
+
+ def __init__(
+ self,
+ client_id: str,
+ client_secret: str,
+ token_url: str,
+ scope: Optional[str] = None,
+ refresh_margin: int = 60,
+ expires_in: Optional[int] = None,
+ ):
+ self.client_id = client_id
+ self.client_secret = client_secret
+ self.token_url = token_url
+ self.scope = scope
+ self.refresh_margin = refresh_margin
+ self.expires_in = expires_in
+
+ self._token = None
+ self._expires_at = 0
+ self._lock = threading.Lock()
+
+ @cached_property
+ def _client_secret_header(self) -> str:
+ creds = f"{self.client_id}:{self.client_secret}"
+ creds_bytes = creds.encode("utf-8")
+ b64_creds = base64.b64encode(creds_bytes).decode("utf-8")
+ return f"Basic {b64_creds}"
+
+ def _refresh_token(self) -> None:
+ data = {}
Review Comment:
Great catch - thanks @kevinjqliu
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