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Emphasize that Request extractor goes last #2834

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merged 3 commits into from
Jul 19, 2024
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Emphasize that Request extractor goes last #2834

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eb8c243
Emphasize that Request extractor goes last.
bittrance Jul 16, 2024
9842593
Improved from_fn docs as per mladedav suggestions.
bittrance Jul 18, 2024
02d7843
Simpler language in from_fn requirements docs
bittrance Jul 19, 2024
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7 changes: 4 additions & 3 deletions axum/src/middleware/from_fn.rs
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Expand Up @@ -19,9 +19,10 @@ use tower_service::Service;
/// `from_fn` requires the function given to
///
/// 1. Be an `async fn`.
/// 2. Take one or more [extractors] as the first arguments.
/// 3. Take [`Next`](Next) as the final argument.
/// 4. Return something that implements [`IntoResponse`].
/// 2. Take zero or more [`FromRequestParts`] extractors.
/// 3. Take exactly one [`FromRequest`] extractor as the second to last argument.
/// 4. Take [`Next`](Next) as the last argument.
/// 5. Return something that implements [`IntoResponse`].
///
/// Note that this function doesn't support extracting [`State`]. For that, use [`from_fn_with_state`].
///
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