OpenWhisk Web Actions

The first way that you learn to call your OpenWhisk action over HTTP is a POST request that is authenticated using your API key. This key allows all sorts of write access to your account, so you never release it.
If you want to access the action over HTTP without the API key, you have two choices: Web Actions or API Gateway.

Link: https://dzone.com/articles/openwhisk-web-actions?utm_medium=feed&utm_source=feedpress.me&utm_campaign=Feed%3A+dzone%2Fwebdev