Billing / API access

[barredterra]

We want to charge for usage of our API keys.

• Create a basic customer portal
• The user needs to sign up with our portal
• Once logged in, they can purchase a subscription via stripe
• Stripe notifies our portal on receipt of payment
• We issue an API key to the user
• The user enters their API key in the Banking Settings
• For every Kosma request, we first call the customer portal with the user's API Key. If they have an active subscription, this yields the Kosma API Key and max transactions included.
• Rotate Kosma keys regularly

[marination]

Finalised https://docs.google.com/document/d/12jlQTjbAgxZhNP-aYZaI3LRyOtu1Z91vbJVmIu4y1AY/edit?usp=sharing

[barredterra]

(Download and open the SVG file for infinite zoomability, viewing in the browser is restricted by GitHubs COntent-Security-Policy)

[marination]

Actionable:

(API restructure)

• [x] Create Banking Admin App to mediate requests and return accurate responses back to client app
• [x] Make client app communicate only with Admin App via Key
• [x] Rate Limit API [Admin]

(Billing)

• [x] Start logging usage in Admin App
• [x] Check if usage limit is crossed for the billed period
• [x] Signup flow with Stripe subscription creation and email