Based on @msa7 message on Gitter
Radix version: 0.37
Crystal version: 21.1 Linux x86_64
require "radix"
tree = Radix::Tree(Symbol).new
tree.add "/products", :products
tree.add "/product/new", :product_new
result = tree.find "/products"
if result.found?
puts result.payload
else
puts "Not found"
end
# => Not found