loop_payload_carousel.js

function payloadCarousel(){
    var data = ["A", "B", "C", "D"]
    var carouselContent = [];
    data.forEach((eachData) => {
      carouselContent.push(
        {
          "type": "bubble",
          "body": {
            "type": "box",
            "layout": "vertical",
            "contents": [
              {
                "type": "text",
                "text": eachData
              }
            ]
          }
        }
      );
    });
    var payload = 
      {
        type: "flex",
        altText: "Example",
        contents: {
          type: "carousel",
          contents: carouselContent,
        },
      }
      
    
    return payload;
}