To get this running, one need to set up AWS lambda function and upload the code executable as zip file. Further setting up AWS API Gateway with API Key and proxy lamda configuration.
You can edit the /mainapp/envs/.env file with your configuration data. The url would be the url API Gateway provides to you, otherwise you can set up custom domain.
Test url looks like this
Gateway url /search/location/cords/-20.267500/148.716949
In Postman, set up Authorisation to type API KEY and the key is x-api-key and the value is provided by AWS Api Gateway and AddToHeader selected.