Method Find

mux.go:368–394

Find searches the routing tree for the pattern that matches the method/path. Note: the *Context state is updated during execution, so manage the state carefully or make a NewRouteContext().

(rctx *Context, method, path string)

// Note: the *Context state is updated during execution, so manage
// the state carefully or make a NewRouteContext().
func (mx *Mux) Find(rctx *Context, method, path string) string {
	m, ok := methodMap[method]
	if !ok {
		return ""
	}

	node, _, _ := mx.tree.FindRoute(rctx, m, path)
	pattern := rctx.routePattern

	if node != nil {
		if node.subroutes == nil {
			e := node.endpoints[m]
			return e.pattern
		}

		rctx.RoutePath = mx.nextRoutePath(rctx)
		subPattern := node.subroutes.Find(rctx, method, rctx.RoutePath)
		if subPattern == "" {
			return ""
		}

		pattern = strings.TrimSuffix(pattern, "/*")
		pattern += subPattern
	}

	return pattern
}

// NotFoundHandler returns the default Mux 404 responder whenever a route
// cannot be found.