title: How to update specific map item inside list in a item of Dynamodb using Node.js
body: <p>my dynamo Db single item is like this, I want to change <code>"res=30"</code> to <code>"res =35"</code> inside <code>"product_rate"</code> of <code>"product_id=2"</code> of primary key <code>"id==22"</code></p>
  
  <p><a href="https://i.stack.imgur.com/ATUlp.png" rel="nofollow noreferrer">enter image description here</a></p>