perl だと、だいぶ簡単に書ける。素晴らしい。
use strict; use HTTP::Request::Common; use LWP; use JSON; my $uri = "https://httpbin.org/post"; my $postData = {"key1" => "val1", "key2" => "val2"}; my $ua = LWP::UserAgent->new(); my $res = $ua->request(POST($uri, $postData)); my $decoded = decode_json($res->content); print $decoded->{"form"}->{"key1"}; # 「val1」と出力される。