Dynamic block callback button

properti "headers" dan "payload" adalah opsional { "version" "v1", "content" { "messages" \[ { "type" "text", "text" "simple text with button", "buttons" \[ { "type" "dynamic block callback", "caption" "dynamic content", "url" "https //your service com/dynamic", "method" "post", "headers" { "x header" "value" }, "payload" { "key" "value" } } ] } ], "actions" \[], "quick replies" \[] } } dynamic block callback berfungsi dengan cara yang sama seperti dynamic block dalam node konten, akan mengirimkan permintaan ke server saat diklik, balasan server akan dikirim ke user url server eksternal harus disebutkan dengan protokol https