axum-extra: Make axum optional dependency (#3485)

axum-extra/CHANGELOG.md

@@ -9,8 +9,16 @@ and this project adheres to [Semantic Versioning].
   introduced as an implicit feature through an optional dependency which was no
   longer being used ([#3298])
 - **breaking:** `option_layer` now maps the `Response` body type to `axum::body::Body` ([#3469])
+- **breaking:** Some new features are added which need to be opted in ([#3485]).
+  - `Cached` extractor requires `cached` feature.
+  - The handler utilities require `handler` feature.
+  - The middleware utilities require `middleware` feature.
+  - `OptionalPath` extractor requires `optional-path` feature.
+  - The routing utilities require `routing` feature.
+  - `WithRejection` extractor requires `with-rejection` feature.
 
 [#3298]: https://github.com/tokio-rs/axum/pull/3298
+[#3485]: https://github.com/tokio-rs/axum/pull/3485
 
 # 0.11.0
 

axum-extra/Cargo.toml

@@ -40,6 +40,7 @@ allowed = [
 default = ["tracing"]
 
 async-read-body = ["dep:tokio-util", "tokio-util?/io", "dep:tokio"]
+cached = ["dep:axum"]
 file-stream = [
     "dep:tokio-util",
     "tokio-util?/io",
@@ -54,7 +55,13 @@ cookie-private = ["cookie", "cookie?/private"]
 cookie-signed = ["cookie", "cookie?/signed"]
 cookie-key-expansion = ["cookie", "cookie?/key-expansion"]
 erased-json = ["dep:serde_json", "dep:typed-json"]
-form = ["dep:form_urlencoded", "dep:serde_html_form", "dep:serde_path_to_error"]
+form = [
+    "dep:axum",
+    "dep:form_urlencoded",
+    "dep:serde_html_form",
+    "dep:serde_path_to_error",
+]
+handler = ["dep:axum"]
 json-deserializer = ["dep:serde_json", "dep:serde_path_to_error"]
 json-lines = [
     "dep:serde_json",
@@ -64,8 +71,11 @@ json-lines = [
     "tokio-stream?/io-util",
     "dep:tokio",
 ]
+middleware = ["dep:axum"]
 multipart = ["dep:multer", "dep:fastrand"]
+optional-path = ["dep:axum"]
 protobuf = ["dep:prost"]
+routing = ["axum/original-uri"]
 scheme = []
 query = ["dep:form_urlencoded", "dep:serde_html_form", "dep:serde_path_to_error"]
 tracing = ["axum-core/tracing", "axum/tracing", "dep:tracing"]
@@ -76,13 +86,13 @@ typed-routing = [
     "dep:serde_html_form",
     "dep:form_urlencoded",
 ]
+with-rejection = ["dep:axum"]
 
 # Enabled by docs.rs because it uses all-features
 # Enables upstream things linked to in docs
 __private_docs = ["axum/json", "dep:serde"]
 
 [dependencies]
-axum = { path = "../axum", version = "0.8.4", default-features = false, features = ["original-uri"] }
 axum-core = { path = "../axum-core", version = "0.5.2" }
 bytes = "1.1.0"
 futures-core = "0.3"
@@ -99,6 +109,7 @@ tower-layer = "0.3"
 tower-service = "0.3"
 
 # optional dependencies
+axum = { path = "../axum", version = "0.8.4", default-features = false, optional = true }
 axum-macros = { path = "../axum-macros", version = "0.5.0", optional = true }
 cookie = { package = "cookie", version = "0.18.0", features = ["percent-encode"], optional = true }
 fastrand = { version = "2.1.0", optional = true }

axum-extra/src/body/async_read_body.rs

@@ -1,8 +1,10 @@
-use axum::{
+use axum_core::{
-    body::{Body, Bytes, HttpBody},
+    body::Body,
     response::{IntoResponse, Response},
     Error,
 };
+use bytes::Bytes;
+use http_body::Body as HttpBody;
 use pin_project_lite::pin_project;
 use std::{
     pin::Pin,

axum-extra/src/either.rs

@@ -92,7 +92,7 @@
 
 use std::task::{Context, Poll};
 
-use axum::{
+use axum_core::{
     extract::FromRequestParts,
     response::{IntoResponse, Response},
 };

axum-extra/src/extract/cookie/mod.rs

@@ -2,7 +2,7 @@
 //!
 //! See [`CookieJar`], [`SignedCookieJar`], and [`PrivateCookieJar`] for more details.
 
-use axum::{
+use axum_core::{
     extract::FromRequestParts,
     response::{IntoResponse, IntoResponseParts, Response, ResponseParts},
 };

axum-extra/src/extract/cookie/private.rs

@@ -1,5 +1,5 @@
 use super::{cookies_from_request, set_cookies, Cookie, Key};
-use axum::{
+use axum_core::{
     extract::{FromRef, FromRequestParts},
     response::{IntoResponse, IntoResponseParts, Response, ResponseParts},
 };

axum-extra/src/extract/cookie/signed.rs

@@ -1,5 +1,5 @@
 use super::{cookies_from_request, set_cookies};
-use axum::{
+use axum_core::{
     extract::{FromRef, FromRequestParts},
     response::{IntoResponse, IntoResponseParts, Response, ResponseParts},
 };

axum-extra/src/extract/host.rs

@@ -1,5 +1,5 @@
 use super::rejection::{FailedToResolveHost, HostRejection};
-use axum::{
+use axum_core::{
     extract::{FromRequestParts, OptionalFromRequestParts},
     RequestPartsExt,
 };

axum-extra/src/extract/json_deserializer.rs

@@ -1,7 +1,7 @@
-use axum::extract::{FromRequest, Request};
 use axum_core::__composite_rejection as composite_rejection;
 use axum_core::__define_rejection as define_rejection;
 use axum_core::extract::rejection::BytesRejection;
+use axum_core::extract::{FromRequest, Request};
 use bytes::Bytes;
 use http::{header, HeaderMap};
 use serde_core::Deserialize;

axum-extra/src/extract/mod.rs

@@ -1,9 +1,15 @@
 //! Additional extractors.
 
-mod cached;
 mod host;
-mod optional_path;
 pub mod rejection;
+
+#[cfg(feature = "optional-path")]
+mod optional_path;
+
+#[cfg(feature = "cached")]
+mod cached;
+
+#[cfg(feature = "with-rejection")]
 mod with_rejection;
 
 #[cfg(feature = "form")]
@@ -25,8 +31,16 @@ pub mod multipart;
 mod scheme;
 
 #[allow(deprecated)]
+#[cfg(feature = "optional-path")]
 pub use self::optional_path::OptionalPath;
-pub use self::{cached::Cached, host::Host, with_rejection::WithRejection};
+
+pub use self::host::Host;
+
+#[cfg(feature = "cached")]
+pub use self::cached::Cached;
+
+#[cfg(feature = "with-rejection")]
+pub use self::with_rejection::WithRejection;
 
 #[cfg(feature = "cookie")]
 pub use self::cookie::CookieJar;

axum-extra/src/extract/multipart.rs

@@ -2,14 +2,14 @@
 //!
 //! See [`Multipart`] for more details.
 
-use axum::{
+use axum_core::{
-    body::{Body, Bytes},
+    RequestExt, __composite_rejection as composite_rejection,
+    __define_rejection as define_rejection,
+    body::Body,
     extract::FromRequest,
     response::{IntoResponse, Response},
-    RequestExt,
 };
-use axum_core::__composite_rejection as composite_rejection;
+use bytes::Bytes;
-use axum_core::__define_rejection as define_rejection;
 use futures_core::stream::Stream;
 use http::{
     header::{HeaderMap, CONTENT_TYPE},
@@ -284,7 +284,7 @@ fn status_code_from_multer_error(err: &multer::Error) -> StatusCode {
             }
 
             if err
-                .downcast_ref::<axum::Error>()
+                .downcast_ref::<axum_core::Error>()
                 .and_then(|err| err.source())
                 .and_then(|err| err.downcast_ref::<http_body_util::LengthLimitError>())
                 .is_some()

axum-extra/src/extract/query.rs

@@ -1,6 +1,6 @@
-use axum::extract::FromRequestParts;
 use axum_core::__composite_rejection as composite_rejection;
 use axum_core::__define_rejection as define_rejection;
+use axum_core::extract::FromRequestParts;
 use http::{request::Parts, Uri};
 use serde_core::de::DeserializeOwned;
 

axum-extra/src/extract/scheme.rs

@@ -1,8 +1,7 @@
 //! Extractor that parses the scheme of a request.
 //! See [`Scheme`] for more details.
 
-use axum::extract::FromRequestParts;
+use axum_core::{__define_rejection as define_rejection, extract::FromRequestParts};
-use axum_core::__define_rejection as define_rejection;
 use http::{
     header::{HeaderMap, FORWARDED},
     request::Parts,

axum-extra/src/json_lines.rs

@@ -1,6 +1,6 @@
 //! Newline delimited JSON extractor and response.
 
-use axum::{
+use axum_core::{
     body::Body,
     extract::{FromRequest, Request},
     response::{IntoResponse, Response},
@@ -74,7 +74,7 @@ pin_project! {
         },
         Extractor {
             #[pin]
-            stream: BoxStream<'static, Result<S, axum::Error>>,
+            stream: BoxStream<'static, Result<S, axum_core::Error>>,
         },
     }
 }
@@ -117,9 +117,9 @@ where
 
         let deserialized_stream =
             lines_stream
-                .map_err(axum::Error::new)
+                .map_err(axum_core::Error::new)
                 .and_then(|value| async move {
-                    serde_json::from_str::<T>(&value).map_err(axum::Error::new)
+                    serde_json::from_str::<T>(&value).map_err(axum_core::Error::new)
                 });
 
         Ok(Self {
@@ -132,7 +132,7 @@ where
 }
 
 impl<T> Stream for JsonLines<T, AsExtractor> {
-    type Item = Result<T, axum::Error>;
+    type Item = Result<T, axum_core::Error>;
 
     fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
         match self.project().inner.project() {

axum-extra/src/lib.rs

@@ -11,6 +11,7 @@
 //! ---|---|---
 //! `async-read-body` | Enables the [`AsyncReadBody`](crate::body::AsyncReadBody) body | No
 //! `attachment` | Enables the [`Attachment`](crate::response::Attachment) response | No
+//! `cached` | Enables the [`Cached`](crate::extract::Cached) extractor | No
 //! `cookie` | Enables the [`CookieJar`](crate::extract::CookieJar) extractor | No
 //! `cookie-private` | Enables the [`PrivateCookieJar`](crate::extract::PrivateCookieJar) extractor | No
 //! `cookie-signed` | Enables the [`SignedCookieJar`](crate::extract::SignedCookieJar) extractor | No
@@ -18,15 +19,20 @@
 //! `erased-json` | Enables the [`ErasedJson`](crate::response::ErasedJson) response | No
 //! `error-response` | Enables the [`InternalServerError`](crate::response::InternalServerError) response | No
 //! `form` | Enables the [`Form`](crate::extract::Form) extractor | No
+//! `handler` | Enables the [handler] utilities | No
 //! `json-deserializer` | Enables the [`JsonDeserializer`](crate::extract::JsonDeserializer) extractor | No
 //! `json-lines` | Enables the [`JsonLines`](crate::extract::JsonLines) extractor and response | No
+//! `middleware` | Enables the [middleware] utilities | No
 //! `multipart` | Enables the [`Multipart`](crate::extract::Multipart) extractor | No
+//! `optional-path` | Enables the [`OptionalPath`](crate::extract::OptionalPath) extractor | No
 //! `protobuf` | Enables the [`Protobuf`](crate::protobuf::Protobuf) extractor and response | No
 //! `query` | Enables the [`Query`](crate::extract::Query) extractor | No
+//! `routing` | Enables the [routing] utilities | No
 //! `tracing` | Log rejections from built-in extractors | Yes
 //! `typed-routing` | Enables the [`TypedPath`](crate::routing::TypedPath) routing utilities | No
 //! `typed-header` | Enables the [`TypedHeader`] extractor and response | No
 //! `file-stream` | Enables the [`FileStream`](crate::response::FileStream) response | No
+//! `with-rejection` | Enables the [`WithRejection`](crate::extract::WithRejection) extractor | No
 //!
 //! [`axum`]: https://crates.io/crates/axum
 
@@ -40,11 +46,17 @@ extern crate self as axum_extra;
 pub mod body;
 pub mod either;
 pub mod extract;
-pub mod handler;
-pub mod middleware;
 pub mod response;
+
+#[cfg(feature = "routing")]
 pub mod routing;
 
+#[cfg(feature = "middleware")]
+pub mod middleware;
+
+#[cfg(feature = "handler")]
+pub mod handler;
+
 #[cfg(feature = "json-lines")]
 pub mod json_lines;
 

axum-extra/src/protobuf.rs

@@ -1,12 +1,12 @@
 //! Protocol Buffer extractor and response.
 
-use axum::{
+use axum_core::__composite_rejection as composite_rejection;
+use axum_core::__define_rejection as define_rejection;
+use axum_core::{
     extract::{rejection::BytesRejection, FromRequest, Request},
     response::{IntoResponse, Response},
     RequestExt,
 };
-use axum_core::__composite_rejection as composite_rejection;
-use axum_core::__define_rejection as define_rejection;
 use bytes::BytesMut;
 use http::StatusCode;
 use http_body_util::BodyExt;

axum-extra/src/response/attachment.rs

@@ -1,4 +1,4 @@
-use axum::response::IntoResponse;
+use axum_core::response::IntoResponse;
 use http::{header, HeaderMap, HeaderValue};
 use tracing::error;
 
@@ -79,7 +79,7 @@ impl<T> IntoResponse for Attachment<T>
 where
     T: IntoResponse,
 {
-    fn into_response(self) -> axum::response::Response {
+    fn into_response(self) -> axum_core::response::Response {
         let mut headers = HeaderMap::new();
 
         if let Some(content_type) = self.content_type {

axum-extra/src/response/erased_json.rs

@@ -1,10 +1,8 @@
 use std::sync::Arc;
 
-use axum::{
+use axum_core::response::{IntoResponse, Response};
-    http::{header, HeaderValue, StatusCode},
-    response::{IntoResponse, Response},
-};
 use bytes::{BufMut, Bytes, BytesMut};
+use http::{header, HeaderValue, StatusCode};
 use serde_core::Serialize;
 
 /// A response type that holds a JSON in serialized form.

axum-extra/src/response/file_stream.rs

@@ -1,4 +1,4 @@
-use axum::{
+use axum_core::{
     body,
     response::{IntoResponse, Response},
     BoxError,

axum-extra/src/response/mod.rs

@@ -60,11 +60,11 @@ macro_rules! mime_response {
         #[must_use]
         pub struct $ident<T>(pub T);
 
-        impl<T> axum::response::IntoResponse for $ident<T>
+        impl<T> axum_core::response::IntoResponse for $ident<T>
         where
-            T: axum::response::IntoResponse,
+            T: axum_core::response::IntoResponse,
         {
-            fn into_response(self) -> axum::response::Response {
+            fn into_response(self) -> axum_core::response::Response {
                 (
                     [(
                         http::header::CONTENT_TYPE,

axum-extra/src/response/multiple.rs

@@ -1,6 +1,6 @@
 //! Generate forms to use in responses.
 
-use axum::response::{IntoResponse, Response};
+use axum_core::response::{IntoResponse, Response};
 use fastrand;
 use http::{header, HeaderMap, StatusCode};
 use mime::Mime;

axum-extra/src/typed_header.rs

@@ -1,6 +1,6 @@
 //! Extractor and response for typed headers.
 
-use axum::{
+use axum_core::{
     extract::{FromRequestParts, OptionalFromRequestParts},
     response::{IntoResponse, IntoResponseParts, Response, ResponseParts},
 };

axum-macros/Cargo.toml

@@ -36,7 +36,7 @@ syn = { version = "2.0", features = [
 
 [dev-dependencies]
 axum = { path = "../axum", features = ["macros"] }
-axum-extra = { path = "../axum-extra", features = ["typed-routing", "cookie-private", "typed-header"] }
+axum-extra = { path = "../axum-extra", features = ["typed-routing", "cookie-private", "typed-header", "routing"] }
 rustversion = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

examples/customize-extractor-error/Cargo.toml

@@ -6,7 +6,7 @@ publish = false
 
 [dependencies]
 axum = { path = "../../axum", features = ["macros"] }
-axum-extra = { path = "../../axum-extra" }
+axum-extra = { path = "../../axum-extra", features = ["with-rejection"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 thiserror = "1.0"