Algebraic Data Types in TS: Indestructible Payment Flows
📰 Dev.to · Hugo Campañoli
Learn how to use Algebraic Data Types in TypeScript to create indestructible payment flows and avoid errors like double charges
Action Steps
- Define a sum type for payment status using TypeScript's type keyword
- Use a discriminated union to create a sealed set of payment states
- Implement a type guard to narrow the type of payment status
- Apply the Algebraic Data Type to your payment flow logic to prevent invalid states
- Test your implementation using TypeScript's type inference and error reporting
Who Needs to Know This
Backend developers and software engineers can benefit from this approach to ensure robust and reliable payment processing systems
Key Insight
💡 Algebraic Data Types can help prevent errors in payment flows by ensuring that only valid states are represented
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💡 Use Algebraic Data Types in TS to create indestructible payment flows and avoid errors like double charges
Key Takeaways
Learn how to use Algebraic Data Types in TypeScript to create indestructible payment flows and avoid errors like double charges
Full Article
Your payment flow has a status: string field? You're one typo away from a double charge. A silent...
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