Crate ferrijs_fetch 

A spec-faithful WHATWG Fetch model and the single send engine over reqwest. A JS fetch global and a host’s own HTTP client API both marshal into the same Request, go through the same send path, and read back the same Response — there is no second code path.

Layout:

• headers — the WHATWG header list.
• body — request/response body (Empty / Bytes / stream).
• model — Request / Response + the RedirectMode / Credentials / ResponseType enums and RemoteAddr.
• error — the typed FetchError.
• engine — the client pool and the one manual-redirect send loop.
• net_guard — SSRF policy (allow-list, metadata/private blocking).
• cookie — RFC 6265 parsing/matching for the context-bound path.
• multipart — multipart/form-data serialization and parsing.
• bridge — the two-way cookie/defaults bridge to a host-owned jar (a browser context, a session store).
• cookie also carries the Cookie record that bridge speaks.

Re-exports

pub use body::Body;

pub use body::ByteStream;

pub use body::channel_stream;

pub use bridge::BridgeFuture;

pub use bridge::ContextBridge;

pub use bridge::ContextDefaults;

pub use cookie::Cookie;

pub use cookie::SameSite;

pub use error::FetchError;

pub use headers::Headers;

pub use model::Credentials;

pub use model::RedirectMode;

pub use model::RemoteAddr;

pub use model::Request;

pub use model::Response;

pub use model::ResponseType;

pub use multipart::MultipartField;

pub use multipart::MultipartValue;

pub use multipart::multipart_boundary;

pub use multipart::multipart_boundary_of;

pub use multipart::parse_multipart;

pub use multipart::serialize_multipart;

pub use net_guard::GuardError;

pub use net_guard::NetGuard;

pub use net_guard::NetPolicy;

pub use net_guard::check_url;

pub use net_guard::preflight;

pub use engine::ClientPool;

pub use engine::send;

pub use reqwest;

Modules

body

Request / response body.

bridge

Two-way bridge between the engine and a host-owned cookie jar.

cookie

RFC 6265 cookie parsing and matching for the bridged request path. Ported from Playwright’s server/cookieStore.ts + server/fetch.ts cookie handling: the host’s context is the jar, so the outgoing Cookie header is assembled here from its cookies and every hop’s Set-Cookie is parsed back with the same defaults Playwright applies.

engine

The one send engine.

error

Typed error for the fetch engine.

headers

WHATWG header list.

model

The WHATWG request/response model the engine sends and returns.

multipart

multipart/form-data serialization, shared by the request-option lowering and the JS FormData body path so both express multipart identically. Mirrors Playwright’s FormField.

net_guard

Sandbox network guard (SSRF defense).