define-errors

Type-safe error definitions in TypeScript are created by using a utility to generate error variants with specific typed fields, forming a discriminated union that ensures precise error handling and code clarity.

Handling API errors with discriminated unions is best achieved by defining serializable error variants. This approach generates a union type, allowing precise matching of API error responses like BadRequest or Unauthorized.

To extract error messages from caught errors in asynchronous operations, use a dedicated helper function to unwrap the error cause. This simplifies extracting the underlying message from complex nested error objects.

Yes, you can create serializable and composable error variants for domain-specific logic. By defining structured error types, you ensure that custom errors carry relevant context and can be safely serialized across boundaries.

Yes, this structured error handling approach works without external dependencies. It relies entirely on TypeScript's native type system to generate discriminated unions and manage typed error variants safely.