Skip to content
src.fastware.responses
Updated Edit
On this page

Six response types (JSON, text, HTML, bytes, streaming, file) with msgspec encoding, cookie helpers, HTTPError, and send_error for middleware.

#src.fastware.responses

#src.fastware.responses

HTTP response types including JSON, text, HTML, bytes, and streaming responses, plus cookie helpers and low-level ASGI send functions.

python
def set_cookie(name: str, value: str, *, httponly: bool=False, samesite: str='lax', max_age: int | None=None, path: str='/', secure: bool=False) -> str

Build a Set-Cookie header string.

python
def delete_cookie(name: str, *, path: str='/') -> str

Build a Set-Cookie header string that clears the cookie.

#HTTPError

Raise from handlers to return a specific HTTP error status.

#JSONResponse

JSON response with optional status code, headers, and cookies.

#TextResponse

Plain text or CSS response.

headers (optional) is merged with the framework's default response headers; values must already be plain strings.

#HTMLResponse

HTML response.

#BytesResponse

Raw bytes response with an explicit content type.

#StreamResponse

Streaming response (for SSE).

#FileResponse

Serve a file from disk with MIME detection and Content-Length.

#_build_headers

python
def _build_headers(content_type: str, extra_headers: dict[str, str] | None=None, cookies: list[str] | None=None) -> list[list[bytes]]

Assemble the ASGI response header list from content type, extra headers, and Set-Cookie values.

Returns headers in the order: content-type, then each extra header, then each cookie as a separate set-cookie entry. Callers that know the body length (buffered responses) insert content-length after content-type; streaming responses omit it.

#_send_response

python
async def _send_response(send: Callable, status: int, body: bytes, content_type: str, extra_headers: dict[str, str] | None=None, cookies: list[str] | None=None) -> None

Send a complete HTTP response (headers + body).

#send_error

python
async def send_error(send: Callable, status: int, detail: str) -> None

Send a complete JSON error response via raw ASGI send calls.

Intended for use by middleware that needs to short-circuit with an error without constructing response objects.

More tools from this site

  • claudestream Drive Claude Code from Python: run it as a subprocess and read its output as typed events, with async and sync sessions, sandbox policies, and tools you define in Python
  • claudewheel A TUI Claude Code Launcher that lets you have more than one profile, manage sessions lifecycle, pick the exact CC version, model to use (even older unlisted ones), pick which GitHub account to use, etc.
  • dirstat Fast, single-binary directory statistics CLI: every file under a tree grouped by format, with counts, sizes, and lines of code, as a colored terminal table or as JSON
  • go-toml-edit Zero-dep TOML editing library for Go with comment preservation
  • howmuchleft The fastest Claude Code statusline: context window, 5-hour, and weekly limit usage as three customizable gradient bars, rendering in about 6 ms
  • orxtra
  • pgdesign
  • predraw Declarative rendering pipeline: describe a scene in JSON and get SVG, PNG and WebP out, with light and dark style tokens, reusable components and text converted to path outlines
  • reposummary Turn a git repository's history into a Markdown journal: pick a time window or revision range and get a readable digest of what changed, optionally narrated by an LLM
  • rlsbl Release orchestration and project scaffolding CLI that bumps versions, validates a structured JSONL changelog, tags only the commit CI verified, and publishes to npm, PyPI, Go and more
  • safegit git wrapper CLI that gives each commit its own temporary index and retries ref updates on conflict, so concurrent agents share one repository
  • saferm Command-line replacement for rm that archives every deletion with a mandatory reason and the context it ran in, so deleted files can be listed, inspected and restored
  • selfdoc Static Site Generator that builds a project's documentation site directly from its source code, so the docs can never drift from the code they describe, with SEO/AEO, first-class blog, search, and cross-project linking built in
  • strictcli
  • stricttest An always-on test-isolation floor: a pytest plugin and a Go env-hygiene module that make a test suite structurally unable to reach real credentials, the real HOME, the network, or the development repository.
  • wesktop A Python framework that turns an ASGI web app into a desktop application, serving it from a local Granian server and displaying it in a native OS window via pywebview
Search