#Result

import { Result } from '@praha/byethrow';

const validateId = (id: string) => {
  if (!id.startsWith('u')) {
    return Result.fail(new Error('Invalid ID format'));
  }
  return Result.succeed();
};

const findUser = Result.try({
  try: (id: string) => {
    return { id, name: 'John Doe' };
  },
  catch: (error) => new Error('Failed to find user', { cause: error }),
});

const result = Result.pipe(
  Result.succeed('u123'),
  Result.andThrough(validateId),
  Result.andThen(findUser),
);

if (Result.isSuccess(result)) {
  console.log(result.value); // User found: John Doe
}

import { R } from '@praha/byethrow';

const validateId = (id: string) => {
  if (!id.startsWith('u')) {
    return R.fail(new Error('Invalid ID format'));
  }
  return R.succeed();
};

const findUser = R.try({
  try: (id: string) => {
    return { id, name: 'John Doe' };
  },
  catch: (error) => new Error('Failed to find user', { cause: error }),
});

const result = R.pipe(
  R.succeed('u123'),
  R.andThrough(validateId),
  R.andThen(findUser),
);

if (R.isSuccess(result)) {
  console.log(result.value); // User found: John Doe
}