<channel access token>" -d \ '{ "to": "U4af4980629…", "messages": [ { "type": "text", "text": "this is a flex message", "quickReply": { "items": [ { "type": "action", "action": { "type": "message", "label": "Sushi", "text": "Sushi" } }, { "type": "action", "action": { "type": "message", "label": "Tempura", "text": "Tempura" } }, { "type": "action", "action": { "type": "location", "label": "Send location" } } ] } } ] }'