WordPress Automatic plugin can import from AliExpress to WordPress posts or wooCommerce products. the plugin can also generate the affiliate links automatically but you should first add a required AliExpress cookie value to the plugin settings page, here is how to get it

1- If you did not already apply for affiliate account, please apply here 

2- once you have applied and your account got approved, visit the link generation page here and make sure that you are logged in already

3- Right click on any part of the page and choose “Inspect”

4- Click on the “Application” tab then from the left, choose “Cookies”

5- Look for the cookie named “xman_t”, click its value then copy it