Make sure serverless is installed. See installation guide.

You will also need to set up your OpenWhisk account credentials using environment variables or a configuration file. Please see the this guide for more information.

npm install in this directory to download the modules from package.json.

serverless deploy or sls deploy. sls is shorthand for the Serverless CLI command

Make a note of the API endpoint that is logged to the console during deployment.

Serverless: Configured API endpoint: https://xxx-yyy-zzz-gws.api-gw.mybluemix.net/my_service

serverless invoke --function time or serverless invoke -f time

-f is shorthand for --function

In your terminal window you should see the response from Apache OpenWhisk

{
    "payload": "The time in Europe/London is: 16:01:14."
}

Use a HTTP client to access the endpoint for your function. The endpoint will be the API gateway root path, logged during deployment, and your configured function path.

$ http get https://xxx-yyy-zzz-gws.api-gw.mybluemix.net/my_service/time
{
    "payload": "The time in Europe/London is: 16:01:07."
}
$ http get https://xxx-yyy-zzz-gws.api-gw.mybluemix.net/my_service/time?timezone=Europe/Berlin
{
    "payload": "The time in Europe/Berlin is: 17:01:11."
}

For more information on the Serverless OpenWhisk plugin, please see the project repository: https://serverless.com/framework/docs/providers/openwhisk/guide/credentials/.