KIOSK PROJECT - AWS Cloud Backend

Tech used

AWS CDK / TypeScript

Services Used

DynamoDB / DynamoDB Stream / API Gateway / API Gategay WebSocket / Lambdas / SQS / Step Functions

Frontend

https://github.com/gugazimmermann/nomad-cms-frontend

https://d1ymv3dztfmiyb.cloudfront.net

Install instructions - Linux

• Install AWS CLI https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html
• Install AWS CDK CLI npm install -g aws-cdk
• Create the ./.env file from ./.env.sample
• run cdk bootstrap
• Compile the typescript make build
• See have any error and the output of what will be build in the cloud make build
• Deploy to env make deploy
• See the table name in the CDK CloudFormation Output:

NomadCmsStack.MenuTableOutput = XXXX

• Update data/menu-items.json with the table name.
• Seed the Restaurant Menu: run aws dynamodb batch-write-item --request-items file://data/menu-items.json

Model of order Payload

{
  "restaurantID": "d471fe1e-521a-48cf-bb80-2a8ab79c2457",
  "menuID": "ee367e37-34d1-4126-881f-43c77d792284",
  "orderItems": [
    {
      "quantity": 2,
      "productID": "c65796e8-0806-4bca-950a-ebc3db101707",
      "name": "Burguer 1",
      "value": "8.69"
    },
    {
      "quantity": 1,
      "productID": "13b3e55b-e3c0-46b8-93b1-8022abca2f75",
      "name": "Burguer 2",
      "value": "6.5"
    },
    {
      "quantity": 2,
      "productID": "42020fcd-46ed-47bc-9a23-9dd00b126560",
      "name": "Soda",
      "value": "2.75"
    }
  ],
  "total": "29.38"
}

The response from the command needs to be

{
    "UnprocessedItems": {}
}

Teste the websocket: (install npm install -g wscat).

Copy the output of NomadCmsStack.ordersWebsocketOutput

run wscat -c PASTE_OUTPUT_HERE

The response needs to be

Connected (press CTRL+C to quit)

Any insert in the orders table will appears here.

• run make destroy to destroy all the cloud resources