I know that API cant support to insert data(img or video) into container field, but we could able to get the image from the container. But, still I'm trying with community members that anybody has intelligent ideas that to upload images or videos to fm container. If not then I can go with URL of yourtube video OR cloud storage
Seems, REST API has many limitation while compare to other API methods/query. I strongly request that FileMaker Inc can consider our request as a serious note and do the needful.