Best Practices for Using a curl Proxy: How to Set It Up and Avoid Common Issues?

Man, curl proxy setups are a blessing and a curse. I’ve been using them for API testing, and the biggest issue I’ve faced is authentication.

If your proxy requires auth, don’t forget to use `-U` or `--proxy-user` in your curl command. I’ve wasted hours debugging only to realize I forgot to add the credentials.

Also, tools like Postman can help test your proxy setup before diving into curl. It’s a bit more visual and easier to debug.