Demonstrate a simple Google App Engine app The curl demo: curl -i -d '{"Code":"FR","Name":"France"}' http://127.0.0.1:8080/countries curl -i -d '{"Code":"US","Name":"United States"}' http://127.0.0.1:8080/countries curl -i http://127.0.0.1:8080/countries/FR curl -i http://127.0.0.1:8080/countries/US curl -i http://127.0.0.1:8080/countries curl -i -X DELETE http://127.0.0.1:8080/countries/FR curl -i http://127.0.0.1:8080/countries curl -i -X DELETE http://127.0.0.1:8080/countries/US curl -i http://127.0.0.1:8080/countries */.