如何手动设置AWS Cognito访问令牌超时？能否修改该超时时长？

Hey there! Let's tackle your questions about adjusting AWS Cognito access token expiration times—this is a common ask, so I'll break it down clearly for you.

1. How to manually set the AWS Cognito access token timeout? #

You have a few official, straightforward ways to do this, depending on whether you prefer using the AWS Console, CLI, or SDK.

Via AWS Management Console #

• Log into the AWS Console, head to the Cognito service, and open your target user pool.
• Switch to the App integration tab, then find the App clients and analytics section.
• Pick the app client you want to configure, click Edit.
• Scroll down to the Token expiration area, look for Access token expiration (minutes), and input your desired duration (it has to be between 5 minutes and 1440 minutes/1 day).
• Hit Save changes and you're done.

Via AWS CLI #

Use the update-user-pool-client command with the --access-token-validity parameter to set your preferred timeout:

aws cognito-idp update-user-pool-client \
  --user-pool-id YOUR_USER_POOL_ID \
  --client-id YOUR_APP_CLIENT_ID \
  --access-token-validity 120  # Example: sets expiration to 120 minutes (2 hours)

Via AWS SDK (Python Example) #

If you're coding this into your application, use the boto3 library to call the update_user_pool_client method:

import boto3

cognito_client = boto3.client('cognito-idp')

response = cognito_client.update_user_pool_client(
    UserPoolId='YOUR_USER_POOL_ID',
    ClientId='YOUR_APP_CLIENT_ID',
    AccessTokenValidity=120  # 120 minutes expiration
)

2. Are there feasible ways to modify AWS Cognito access token timeout? #

Absolutely! All the methods I listed above are fully supported by AWS and work reliably. A few extra notes to keep in mind:

• The valid range for access token expiration is 5 minutes to 1440 minutes (1 day)—any value outside this will be rejected.
• Each app client in your user pool can have its own unique expiration setting, so you can tailor this to different apps if needed.
• For more dynamic control (like setting different expirations based on user roles or attributes), you can use Cognito's Pre Token Generation Lambda Trigger. This lets you adjust the expiration time when the token is generated, but keep in mind: the value you set here can't exceed the maximum expiration configured in your user pool/app client—if it does, it'll get capped to that maximum.

Here's a quick example of a Pre Token Generation trigger (Node.js):

exports.handler = async (event) => {
  // Example: Set access token to expire in 90 minutes (5400 seconds) for specific users
  event.response = {
    claimsOverrideDetails: {
      accessTokenGeneration: {
        expiresIn: 5400
      }
    }
  };
  return event;
};

内容的提问来源于stack exchange，提问作者Instasea