better-result-adopt

To migrate TypeScript error handling to typed Result patterns, wrap I/O boundaries like API calls and database queries with Result.try and tryPromise, define domain errors using TaggedError, and update function signatures to return Result types.

Replacing try/catch blocks with typed errors involves identifying I/O boundaries, wrapping promise rejections with Result.tryPromise, and propagating Result types through the call stack to eliminate untyped errors.

TaggedError defines domain errors by tagging specific failure cases at I/O boundaries, allowing API calls and file operations to return structured Result types instead of throwing untyped exceptions.

Yes, better-result operates without external dependencies to refactor Promise-based error handling, allowing you to wrap promise rejections at I/O boundaries and convert them to typed Result wrappers.

Typed Result wrappers are needed for database queries and file operations when you want to enforce type safety at I/O boundaries, replacing unpredictable try/catch blocks with explicit domain error propagation.

Refactoring to typed Result patterns requires updating function signatures across the call stack, meaning all downstream callers must be migrated to handle Result types, which can impact large codebases significantly.