Investments tracking

[letehaha]

This feature includes tracking for stocks, options, crypto, and any other security.

Track backend progress: https://github.com/letehaha/budget-tracker-be/pull/110

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Functional requirements

Backend

• [ ] Separate services per each securities data provider. More details in related backend PR
• [ ] Securities sync via cron jobs
• [ ] Stats calculations
• [ ] e2e tests
• [ ] TBD?

  Frontend

• TBD

Ideas/to-consider

• [ ] [backend] automatic dividend transactions/calculations
• [ ] [backend+frontend] some admin user + admin endpoints to trigger securities syncing via UI

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Data providers

• Twelve Data for free data. They give 800 API calls per day and it's pretty enough
• https://polygon.io/stocks is a decent thing with a free plan as well with 5 calls/min = 5 60 24 = 7200/day, or unlimited one for $30/month

For now it's decided to move on with Polygon, since it has better pricing and good enough API. Still, the implementation should aim to allow different data providers with less hustle.