Requests提供Server Certificate和Client Certificate的設定。
簡單來說，Server Certficate是使用者(瀏覽器、Requests、Postman)用來驗證伺服器是否可信任；而Client Certificate是伺服器用來驗證使用者是否可信任，好饒口...

Server Certificate

預設使用certifi package當作信任憑證來源且可以使用環境變數REQUESTS_CA_BUNDLE 指定信任憑證來源。

發起請求時可以透過verify參數，預設是開啟，可以帶入的值如下

• Boolean: True/False
• the path to a CA_BUNDLE file
• directory with certificates of trusted CAs

Client Certificates

發起請求時可以透過cert參數，可以帶入的值如下

• a single file (containing the private key and the certificate)
• a tuple of both files’ paths

參考

• HTTPS/SSL/TLS 概述，整體流程、憑證、數位簽章
• Requests-The User Guide-Advanced Usage
• 用戶端憑證與伺服器憑證有何差異？
• Client Certificate Authentication (Part 1)
• Client Certificate vs Server Certificate: Simplifying the Difference
• What is a Root SSL Certificate
• OpenSSL client certificates vs server certificates
• SSL Handshake and HTTPS Bindings on IIS