Now you are a few steps ahead of being able to send images, videos, and GIFS in your iOS app notifications! Enabling this functionality is quite straight forward, Let's take a look!
Technically speaking, rich media in iOS means you can attach media to your notifications and embed custom action buttons (content extensions).
Send using dashboard:
In Push section of the composer, choose custom image, the add image or video URL in custom image section:
Send using API:
Add mutableContent and attachment-url to payload as follows:
"payload":{"mutableContent": true,"attachment-url":"https://www.w3schools.com/html/mov_bbb.mp4"}