All files / src/exception exception.utils.ts

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import { ValidationError } from 'class-validator';
 
export function traverseValidationError(errors: ValidationError[]): ValidationError {
  const subErrors = {} as any;
  for (const error of errors) {
    if (error.children?.length) subErrors[error.property] = traverseValidationError(error.children);
    else subErrors[error.property] = Object.values(error.constraints ?? {}).join(', ');
  }
  return subErrors;
}