[obtu]

It's easy enough to generate a snakeoil cert and use its public part as your cert bundle. On Debian/Ubuntu, just install the ssl-cert package, and point to /etc/ssl/certs/ssl-cert-snakeoil.pem as your certificate bundle; the private key is at /etc/ssl/private/ssl-cert-snakeoil.key .

Or just serve your app/API/etc from different urls, plain HTTP for development and HTTPS for preprod and production.