使用AWS Cognito保持用户在ios中的登录状态

Question

I have used AWS Lambda and amazon cogntio to authenticate users.

I used:

getOpenIdTokenForDeveloperIdentity

and get a identity and token. Do I need to save bought locally in my app to keep a user logged in? How do I keep the user permanently logged in? Does the identity expire like the token? Can I get a new token without having the user login again?

I want to access various amazon services with the authenticated user.

Answer 1

The identity id itself does not expire. If you pass the same key value pair "developer_provider_name": "developer_user_identifier" with getOpenIdTokenForDeveloperIdentity , the service returns the same identity id.

The token expires in duration which was given to the service in the TokenDuration parameter, by default 15 minutes. All you need to call the service again is developer_user_identifier and the user does not need to login again necessarily.