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 -g serverless-openwhisk

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

serverless invoke --function hello_world or serverless invoke -f hello_world

-f is shorthand for --function

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

{
    "payload": "Hello, World!"
}

Congrats you have just deployed and run your Hello World function!

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