Add a Discord slash command, /sites, that, when executed, retrieves a list of site URLs that are being monitored and notifies the webhook.

TODO:

• Add script that creates a Discord global command via HTTP POST. Details here.
• Make the Discord global command trigger a POST request to /sites on AWS Gateway.
• Make AWS Gateway route POST /sites requests to a Lambda function called CheckSiteTargetsFunction.
• Make the CheckSiteTargetsFunction function send a list of sites stored in the ConfigTable to QueuePublisherFunction for Discord message processing.
  • Figure out how to enable Lambda-to-Lambda event trigger, ideally without introducing Lambda Step Functions.

The following error is sometimes thrown by DynamoDB while trying to PUT an item in the InventoryTable:

PUT operation:

2022-12-28T05:42:02.487Z	b455ce90-bad2-422b-af9d-a7974285fcbf	INFO	Attempting put operation of item '
{
    "id": "39870446600227",
    "title": "NEVEREST Series EC keyboards by deskeys - 19 / AL Grey / Assembly",
    "available": false,
    "site": "https://deskeys.io/products/neverest-series-ec-kbs-by-deskeys"
}
' in table 'shopify-bot-InventoryTable-19JFEI4DD4A4B'

Error:

2022-12-28T05:42:02.351Z	b455ce90-bad2-422b-af9d-a7974285fcbf	INFO	Error Error: Pass options.removeUndefinedValues=true to remove undefined values from map/array/set.
    at convertToAttr (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/node_modules/@aws-sdk/util-dynamodb/dist-cjs/convertToAttr.js:7:15)
    at /opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/node_modules/@aws-sdk/util-dynamodb/dist-cjs/convertToAttr.js:118:54
    at convertToMapAttrFromEnumerableProps (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/node_modules/@aws-sdk/util-dynamodb/dist-cjs/convertToAttr.js:122:7)
    at convertToAttr (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/node_modules/@aws-sdk/util-dynamodb/dist-cjs/convertToAttr.js:23:16)
    at marshall (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/node_modules/@aws-sdk/util-dynamodb/dist-cjs/marshall.js:6:62)
    at marshallFunc (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/dist-cjs/commands/utils.js:39:71)
    at processObj (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/dist-cjs/commands/utils.js:8:20)
    at processKeyInObj (/opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/dist-cjs/commands/utils.js:25:12)
    at /opt/nodejs/node_modules/@aws-sdk/lib-dynamodb/dist-cjs/commands/utils.js:30:20
    at Array.reduce (<anonymous>)

TODO:

• Migrate from CloudFormation/Sam to CDK

As a user, I want to be able to control which notifications I receive by self-subscribing to roles.

e.g., User-A executes slash command /subscribe deskeys and is assigned the role of deskeys. User-B does not and thus does not have the deskeys role. Whenever an inventory notification relating to deskeys is triggered, User-A will receive the notification, but User-B will not.

TODO:

• Add endpoint or piggyback off existing config handler and use a unique URL query parameter like ?discordUser=
• Username should be stored in ConfigTable and fetched by Discord handler during web hook activation

TODO:

Add a GitHub Actions runner to build & deploy the application off the main branch to the production/public Discord server

The current state of the application allows for duplicate events to be fired to Discord.

When an item changes in the inventory table, precisely three duplicate events records are getting processed and added to the SNS topic.

I think an SQS queue should fix this.

Example:

Currently, all sites are sourced by the SHOPIFY_SITES environment variable. This is sub-optimal for two reasons:

1. The value is hard-coded into the template.yaml.
2. The value is a JSON string. Yuck.

There should instead be a separate function that:

• accepts an array of sites
• persist the sites somewhere (S3 or DDB table)
• notify the ShopifySynchronizationFunction. New sites should be included on the event object.

TODO:

• Add Basic Auth to REST API endpoints
• Use AWS Cognito Pool for authorization
• Modify endpoints:
  • GET {api-root}/ should return a table summary
  • GET {api-root}/sync should trigger ShopifySyncFunction and return 200 "ok"

Currently, the bot is only capable of monitoring specific products based on product paths.

e.g.:

• https://my-shopify-site.com/products/product1.js
• https://my-shopify-site.com/products/product2.js

Instead, make the bot automatically monitor all available products without referencing a specific product path.

This can be done by intermittently querying the /products.json Shopify endpoint. The response will contain a list of all available products. Each element can thus be subsequently queried for inventory information.