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feat(story-1.6): MsgspecDecoder via the [msgspec] extra #11

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Merged
lesnik512 merged 8 commits into from
May 31, 2026
Merged

feat(story-1.6): MsgspecDecoder via the [msgspec] extra #11

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b12a989
docs(story-1.6): design for MsgspecDecoder via extras
lesnik512 May 31, 2026
0223863
feat(story-1.6): _internal/import_checker.py for find_spec-based extr…
lesnik512 May 31, 2026
37686be
feat(story-1.6): MsgspecDecoder adapter behind [msgspec] extra
lesnik512 May 31, 2026
5f647c4
fix(story-1.6): drop pydantic fallback in MsgspecDecoder
lesnik512 May 31, 2026
a63b463
test(story-1.6): subprocess-based import-isolation guard for opt-in e…
lesnik512 May 31, 2026
a5c8585
docs(story-1.6): CHANGELOG entry for MsgspecDecoder via extras
lesnik512 May 31, 2026
a3849b8
style(story-1.6): apply ruff format to msgspec decoder and isolation …
lesnik512 May 31, 2026
3715248
docs(story-1.6): implementation plan for MsgspecDecoder via extras
lesnik512 May 31, 2026
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -22,5 +22,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
- `Middleware` protocol (`@runtime_checkable`) and `Next` callable type alias (`Callable[[Request], Awaitable[Response]]`); private `compose(middlewares, transport)` chain composer at `httpware._internal.chain` using a recursive closure fold with `transport.__call__` as the bottom of the chain. No exception handling inside `compose`, so `asyncio.CancelledError` and user-raised exceptions propagate untouched (Story 2.1).
- Phase-shortcut decorators `@before_request`, `@after_response`, `@on_error` for lifecycle hooks without authoring a full `Middleware` class. `@on_error` catches `Exception` only (so `asyncio.CancelledError` propagates); its handler may return a `Response` to recover or `None` to re-raise (Story 2.2).
- Request and Response immutability helper expansion: `Request.with_headers`, `with_cookie`, `with_cookies`, `with_extension`, `with_extensions`; `Response.with_headers`, `with_status`. Plural helpers merge mappings (incoming keys override existing); singular helpers add or replace a single entry. No validation, no header-key normalization — matches the existing `with_header` semantics from Story 1.2 (Story 2.3).
- `MsgspecDecoder` opt-in `ResponseDecoder` adapter behind the `[msgspec]` extra at `httpware.decoders.msgspec`; `msgspec.json.decode(content, type=model)` in a single C-level parse pass. Accepts `msgspec.Struct`, dataclasses, attrs, NamedTuples, TypedDicts, and builtin/container types as `model` (pydantic models use `PydanticDecoder` instead). `msgspec.ValidationError` and `msgspec.DecodeError` propagate unchanged. Module import is safe without the extra (gated by `httpware._internal.import_checker.is_msgspec_installed`); only `MsgspecDecoder()` construction raises `ImportError` with an install hint when the extra is missing. `import httpware` does NOT eagerly load `msgspec` — `MsgspecDecoder` is reachable only via `from httpware.decoders.msgspec import MsgspecDecoder` (Story 1.6).

[Unreleased]: https://github.com/modern-python/httpware/commits/main
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