Proxy4Free API extraction tutorial
1. Open and log in to the official website of Proxy4Free , and register to log in
2. After login, click your avatar to enter the Personal center
3. Select the user list to add a user
4. Set the user name and password. Click "Confirm"
5. Next, click "API" for api extraction
6. Select the user you just added, add the session and select the time, and finally generate the api link and copy it