![Connecting existing users database to AWS Cognito: How to leverage Passwordless Authentication to use legacy database? | by Miki Graf | Cloudsail.io | Medium Connecting existing users database to AWS Cognito: How to leverage Passwordless Authentication to use legacy database? | by Miki Graf | Cloudsail.io | Medium](https://miro.medium.com/v2/resize:fit:2000/1*uiXVGGfm77NlvOmwEe0Czw.png)
Connecting existing users database to AWS Cognito: How to leverage Passwordless Authentication to use legacy database? | by Miki Graf | Cloudsail.io | Medium
![Use Amazon Cognito to add claims to an identity token for fine-grained authorization | AWS Security Blog Use Amazon Cognito to add claims to an identity token for fine-grained authorization | AWS Security Blog](https://d2908q01vomqb2.cloudfront.net/22d200f8670dbdb3e253a90eee5098477c95c23d/2022/06/07/Figure2.png)
Use Amazon Cognito to add claims to an identity token for fine-grained authorization | AWS Security Blog
![Create a Custom UI Authentication Flow with AWS Cognito and React from Scratch | by Tyler Morales | Medium Create a Custom UI Authentication Flow with AWS Cognito and React from Scratch | by Tyler Morales | Medium](https://miro.medium.com/v2/resize:fit:1400/1*2Lp7odsvnZeDghBGn_MO9Q.jpeg)