Fetched the graphql schema for the Economist. Introspection is enabled in production. Not a big deal but they should probably turn it off. Their server only accepts GET requests (probably to make cloudflare caching happy) so you can put your query in /tmp/query
then query it like this:
$ curl -H "Host: www.economist.com" --compressed -v "https://www.economist.com/graphql?version=v1&operationName=IntrospectionQuery&variables=%7B%7D&query=$(perl -MURI::Escape -e 'print uri_escape($ARGV[0]);' "$(cat /tmp/query)")" | jq