https://openresty.org/download/agentzh-nginx-tutorials-en.html
location /test {
echo "name: $arg_name";
echo "class: $arg_class";
}
$ curl 'http://localhost:8080/test'
name:
class:
$ curl 'http://localhost:8080/test?name=Tom&class=3'
name: Tom
class: 3
$ curl 'http://localhost:8080/test?name=hello%20world&class=9'
name: hello%20world
class: 9