title: Firebase auth to access Aws DynamoDB
body: <p>I've to create a json returning api hosted on aws(aws is must can't use Firebase cloud Functions).</p>
  
  <p>User who have logged in on webapp can only access api.</p>
  
  <p>I've found <a href="https://sanderknape.com/2017/10/creating-a-serverless-api-using-aws-api-gateway-and-dynamodb/" rel="nofollow noreferrer">Serverless Api with Aws Api Gateway + DynamoDB</a> which doesn't use Aws Lambda Functions.</p>
  
  <p>Access can be limited using AWS Cognito which isn't free!</p>
  
  <p>FirebaseAuth is <a href="https://firebase.google.com/pricing/" rel="nofollow noreferrer">free!</a> . So my question is how do I use firebase auth to limit access to above api?</p>