How to use curl with a proxy server

How to use curl with a proxy server

Route curl requests through HTTP, HTTPS, and SOCKS5 proxy servers for debugging and access control.

Prerequisites

• curl installed.
• A proxy server address and port.

Step-by-Step: Use curl with a Proxy

1. Route a request through an HTTP proxy with the -x flag:

   curl -x http://proxy.example.com:8080 https://api.example.com/data

2. Route through a SOCKS5 proxy:

   curl -x socks5://127.0.0.1:1080 https://api.example.com/data

3. Authenticate with the proxy server:

   curl -x http://proxy.example.com:8080 -U proxyuser:proxypass https://api.example.com/data

4. Set a proxy via environment variable (applies to all curl requests in the session):

   export https_proxy=http://proxy.example.com:8080
   curl https://api.example.com/data