@novo-learning/novo-sdk/src/util/format-error.ts

SDK for the Novolanguage Speech Analysis API

export const formatError = (error: unknown): string => {
  if (!error || typeof error !== 'object') {
    return `Unknown error: ${String(error)}`;
  }

  const baseError = error as Partial<Error> & { errors?: unknown };
  const lines = [];

  lines.push(`Name: ${baseError.name ?? 'Unknown'}`);
  if (baseError.message) {
    lines.push(`Message: ${baseError.message}`);
  }

  Object.entries(baseError)
    .filter(([key, _]) => !['name', 'message', 'stack', 'errors'].includes(key))
    .forEach(([key, value]) => {
      try {
        lines.push(`${key}: ${JSON.stringify(value)}`);
      } catch {
        lines.push(`${key}: unable to stringify`);
      }
    });
  if (baseError.stack) {
    lines.push('Stacktrace:');
    lines.push(baseError.stack);
  }

  if (baseError.errors && Array.isArray(baseError.errors)) {
    baseError.errors.forEach((subError, index) => {
      lines.push(`-- Error ${index + 1} --`);
      lines.push(formatError(subError));
    });
  }

  return lines.join('\n');
};