Web用ソフトプッシュプロンプト

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import * as braze from "@braze/web-sdk";
// Be sure to remove any calls to braze.automaticallyShowInAppMessages()
braze.subscribeToInAppMessage(function(inAppMessage) {
  // check if message is not a control variant
  if (inAppMessage instanceof braze.inAppMessage) {
    // access the key-value pairs, defined as `extras`
    const keyValuePairs = inAppMessage.extras || {};
    // check the value of our key `msg-id` defined in the Braze dashboard
    if (keyValuePairs["msg-id"] === "push-primer") {
      // We don't want to display the soft push prompt to users on browsers
      // that don't support push, or if the user has already granted/blocked permission
      if (
        braze.isPushSupported() === false ||
        braze.isPushPermissionGranted() ||
        braze.isPushBlocked()
      ) {
        // do not call `showInAppMessage`
        return;
      }

      // user is eligible to receive the native prompt
      // register a click handler on one of the two buttons
      if (inAppMessage.buttons[0]) {
        // Prompt the user when the first button is clicked
        inAppMessage.buttons[0].subscribeToClickedEvent(function() {
          braze.requestPushPermission(
            function() {
              // success!
            },
            function() {
              // user declined
            }
          );
        });
      }
    }
  }

  // show the in-app message now
  braze.showInAppMessage(inAppMessage);
});