Postman’s Proxy Now Fully Supports HTTPS Endpoints

Developers often find themselves spending more time debugging APIs than desired, with the 2020 State of the API Report by Postman highlighting a discrepancy between the ideal and actual time spent on debugging. In response, Postman has introduced features to streamline API testing and debugging, including a proxy that captures both HTTP and HTTPS traffic, the latter being a significant enhancement due to the challenges posed by HTTP Strict Transport Security (HSTS). HSTS is a security protocol that ensures traffic is transmitted securely by requiring valid SSL certificates, which can complicate traffic inspection tools. Postman addresses this by allowing developers to install a self-signed root Certificate Authority (CA) certificate, enabling the capture of HTTPS traffic without security warnings. This new capability helps developers efficiently monitor and document API interactions, even for endpoints with HSTS enabled, by making it possible to save captured requests for further use in documentation and mock server creation.

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