MigrationResult

Result type returned by migration operations.

Migration operations can either succeed and return the transformed value, or fail with a specific reason. This discriminated union type allows for safe handling of both success and error cases when applying migrations.

type MigrationResult<T> =
  | {
      reason: MigrationFailureReason
      type: 'error'
    }
  | {
      type: 'success'
      value: T
    }