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Example of how to approach route containers with groups and sub groups in crystal language (inspired by php frameworks such as Slim Framework 3)
class Route
def initialize(@route = "")
end
def route
@route
end
end
class RouteContainer
@routes = [] of Route
@groups = [] of String
def routes
@routes
end
def add(route : String)
route = parse_route(route)
@routes << Route.new route
end
def group(route : String, &closure : RouteContainer ->)
@groups << route
closure.call(self)
@groups.pop?
end
private def parse_route(route : String)
# remove trailing forward slash from end of each group before joining
@groups.map!{ |g| g.chomp('/').lchomp('/') }
group_prefix = @groups.join('/').strip
route = route.lchomp('/')
route = group_prefix + "/" + route
route = "/" + route if !group_prefix.empty?
route
end
end
container = RouteContainer.new
container.group "/admin", do |router|
router.group "/users", do |router|
router.add("/update")
router.add("/edit")
end
router.group "/staff", do |router|
router.add("/promotion")
end
end
container.routes.each do |route|
puts route.route
end
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