Simulating HTTPS APIs

To capture HTTPS traffic, you need to use Hoverfly’s SSL certificate.

First, download the certificate:


We can now run Hoverfly with the standard capture then simulate workflow.

hoverctl start
hoverctl mode capture
curl --proxy localhost:8500 --cacert cert.pem
hoverctl mode simulate
curl --proxy localhost:8500 --cacert cert.pem
hoverctl stop

Curl makes the HTTPS request by first establishing a TLS tunnel to the destination with Hoverfly using the HTTP CONNECT method. As curl has supplied Hoverfly’s SSL certificate, Hoverfly is then able to intercept and capture the traffic. Effectively SSL-encrypted communication (HTTPS) is established through an unencrypted HTTP proxy.


This example uses cURL. If you are using Hoverfly in another environment, you will need to add the certificate to your trust store. This is done automatically by the Hoverfly Java library (see Hoverfly Java).

See also

This example uses Hoverfly’s default SSL certificate. Alternatively, you can use Hoverfly to generate a new certificate. For more information, see Configuring SSL in Hoverfly.