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[docs] Document evaluation order for routes (#297)

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This commit is contained in:
Matthew Riley
2017-09-22 13:54:14 -07:00
committed by Matt Silverlock
parent 24fca303ac
commit 3f19343c7d
1 changed files with 8 additions and 0 deletions
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README.md
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@@ -135,6 +135,14 @@ r.HandleFunc("/products", ProductsHandler).
Schemes("http")
```
Routes are tested in the order they were added to the router. If two routes match, the first one wins:
```go
r := mux.NewRouter()
r.HandleFunc("/specific", specificHandler)
r.PathPrefix("/").Handler(catchAllHandler)
```
Setting the same matching conditions again and again can be boring, so we have a way to group several routes that share the same requirements. We call it "subrouting".
For example, let's say we have several URLs that should only match when the host is `www.example.com`. Create a route for that host and get a "subrouter" from it: