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Little package to map hosts to a variety of http routers for Go API services
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LICENSE Update import path and LICENSE Aug 9, 2017
README.md Fix typos and implement match function Oct 22, 2017
hostrouter.go Fix typos and implement match function Oct 22, 2017

README.md

HostRouter

hostrouter is a small Go pkg to let you route traffic to different http handlers or routers based on the request host. This is useful to mount multiple routers on a single server.

Basic usage example

//...
func main() {
  r := chi.NewRouter()

  r.Use(middleware.RequestID)
  r.Use(middleware.RealIP)
  r.Use(middleware.Logger)
  r.Use(middleware.Recoverer)

  hr := hostrouter.New()

  // Requests to api.domain.com
  hr.Map("", apiRouter()) // default
  hr.Map("api.domain.com", apiRouter())

  // Requests to doma.in
  hr.Map("doma.in", shortUrlRouter())

  // Requests to host that isn't defined above
  hr.Map("*", everythingElseRouter())

  // Mount the host router
  r.Mount("/", hr)

  http.ListenAndServe(":3333", r)
}

// Router for the API service
func apiRouter() chi.Router {
  r := chi.NewRouter()
  r.Get("/", apiIndexHandler)
  // ...
  return r
}

// Router for the Short URL service
func shortUrlRouter() chi.Router {
  r := chi.NewRouter()
  r.Get("/", shortIndexHandler)
  // ...
  return r
}
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