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explain that Router::merge
only merges paths and fallback (#2316)
Co-authored-by: David Pedersen <david.pdrsn@gmail.com>
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@ -1,4 +1,4 @@
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Merge two routers into one.
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Merge the paths and fallbacks of two routers into a single [`Router`].
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This is useful for breaking apps into smaller pieces and combining them
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into one.
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@ -71,6 +71,11 @@ let app = Router::new()
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# let _: axum::Router = app;
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```
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# Merging routers with fallbacks
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When combining [`Router`]s with this method, the [fallback](Router::fallback) is also merged.
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However only one of the routers can have a fallback.
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# Panics
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- If two routers that each have a [fallback](Router::fallback) are merged. This
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@ -135,6 +135,8 @@ async fn layer_and_handle_error() {
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let res = client.get("/timeout").send().await;
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assert_eq!(res.status(), StatusCode::REQUEST_TIMEOUT);
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let res = client.get("/foo").send().await;
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assert_eq!(res.status(), StatusCode::OK);
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}
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#[crate::test]
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