[Rails] how do i append a json object to a css selector in the dom

[fugee ohu]

I need to append this json object including images to a css selector Anyone 
can tell me how
{
  "id": 43,
  "name": "content",
  "body": "<div><action-text-attachment 
sgid=\"BAh7CEkiCGdpZAY6BkVUSSI3Z2lkOi8vaWduYXR6bW91c2UvQWN0aXZlU3RvcmFnZTo6QmxvYi83P2V4cGlyZXNfaW4GOwBUSSIMcHVycG9zZQY7AFRJIg9hdHRhY2hhYmxlBjsAVEkiD2V4cGlyZXNfYXQGOwBUMA==--9e1bfda2422dee3f77beb04742e1f667a22e25c6\"
 
content-type=\"image/jpeg\" 
url=\"http://localhost:3000/rails/active_storage/blobs/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBEQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--f5de0e90b1f4146080f3d8482b1e535ff3204d79/Katana.jpg\";
 
filename=\"Katana.jpg\" filesize=\"39537\" width=\"471\" height=\"512\" 
presentation=\"gallery\"></action-text-attachment></div>",
  "record_type": "Message",
  "record_id": 283,
  "created_at": "2020-01-20T13:12:09.813Z",
  "updated_at": "2020-01-20T13:12:09.846Z"
}

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