1. Obtain API authorization key in AWS system

   a) Enter the user management page

   https://us-east-1.console.aws.amazon.com/iam/home#/users

   b) Create User

   Click the Create User button to enter the specified user details page On the specified user details page, enter the username, such as' Relaxcert '. No need to check the 'Provide users with access to AWS Management Console' option. Click Next. On the permission settings page, select the permission option "Attach policy directly". In the permission policy search box, enter "AWSCignatureManagerFullAccess" and check AWSCignatureManagerFullAccess. Click Next. Go to the View and Create page and click the Create User button directly.

   c) Generate API password

   Click on the username just created in the user list on the user page to enter the user settings page. Select the security credential label. Scroll to the Access Key and click the Create Access Key button. Check the third-party service and select 'I understand the above suggestion and would like to continue creating access keys', then click' Next '. No need to fill in the description tag, simply click the Create Access Key button. Stay on the search access key page. Later, you need to copy the access key and secret access key, or you can download the CSV file and save it first.