Boton link line

{
  "line": {
    "contents": {
      "body": {
        "contents": [
          {
            "type": "button",
            "height": "sm",
            "color": "#e969d2",
            "action": {
              "label": "เว็บไซต์โรงเรียนสุนทรวัฒนา",
              "type": "uri",
              "uri": "https://liff.line.me/1654268701-YEdm2NMN"
            },
            "margin": "sm",
            "style": "primary"
          }
        ],
        "type": "box",
        "layout": "vertical"
      },
      "type": "bubble"
    },
    "type": "flex",
    "altText": "This is a Flex Message"
  }
}