feat: add extra_headers support to all client methods#193
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Kamilbenkirane merged 3 commits intomainfrom Feb 25, 2026
Merged
feat: add extra_headers support to all client methods#193Kamilbenkirane merged 3 commits intomainfrom
Kamilbenkirane merged 3 commits intomainfrom
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Add `extra_headers: dict[str, str] | None = None` alongside `extra_body` on all client methods, enabling users to pass provider-specific HTTP headers (e.g., Anthropic's 1M context beta header). - Extend `_json_headers()` to accept and merge extra headers - Add `_merge_headers()` static helper for edge cases (WebSocket, multipart) - Thread `extra_headers` through `_predict()` → `_make_request()` and `_stream()` → `_make_stream_request()` across all providers - Update all 3 templates and the template contract test Closes #178 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Code reviewNo issues found. Checked for bugs and CLAUDE.md compliance. |
- Make _merge_headers return a new dict instead of mutating input - Add extra_headers to base _make_stream_request stub signature - Fix OpenAI videos multipart sending wrong Content-Type - Add extra_headers to Google _get_interaction and download_content - Simplify BFL header construction to use _json_headers(extra_headers) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
extra_headers: dict[str, str] | None = Nonealongsideextra_bodyon all client methods (generate,stream,analyze,speak,embed,edit)_json_headers()to accept and merge user headers for the common case (~28 call sites)_merge_headers()static helper for edge cases that bypass_json_headers(WebSocket, multipart, custom poll headers)_build_headers()acceptsextra_headersand applies it last so user headers win over version + beta headersextra_headersvalidation to the template contract testUsage
Test plan
extra_headersparam on all provider API clientsCloses #178