feat: add Auth0-Client telemetry header#103
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kishore7snehil merged 4 commits intomainfrom Apr 24, 2026
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Send an Auth0-Client header (base64-encoded JSON with SDK name, version, and Python runtime) on every request to Auth0 endpoints. This follows the standard Auth0 SDK telemetry convention. - Add Telemetry class in telemetry.py for building and caching headers - Add _get_http_client() helper to ServerClient, MyAccountClient, and MfaClient to inject telemetry headers into all httpx requests - Pass telemetry headers to AsyncOAuth2Client for token exchange calls - Add unit tests for telemetry header format and integration
Replace `from __future__ import annotations` with `Optional[dict[str, str]]` syntax for the headers parameter in telemetry.py, mfa_client.py, and my_account_client.py. This avoids triggering lint warnings on existing Optional[X] annotations while maintaining Python 3.9 compatibility.
- Build headers eagerly in Telemetry.__init__ instead of lazy caching - Narrow exception catch to PackageNotFoundError in Telemetry.default() - Reverse header merge order so telemetry headers cannot be overwritten - Fix resource leak in test by closing httpx.AsyncClient - Replace mock-based OIDC test with direct header assertion - Add test for AsyncOAuth2Client telemetry header propagation - Add tests for MFA client header propagation and merge behavior
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Changes
Telemetryclass (telemetry.py) that builds and caches theAuth0-Clientheader - a base64-encoded JSON payload with SDK name, version, and Python runtime environment_get_http_client()helper toServerClient,MyAccountClient, andMfaClientto inject telemetry headers into allhttpxrequests (17 call sites)AsyncOAuth2Clientfor token exchange calls