create-boom-error/index.js

Simply create sub-classed Boom errors for Hapi applications.

const Boom = require('@hapi/boom');
const Decamelize = require('decamelize');

class BaseError extends Error {
  name;
  code;
}

function isDecoratedBoom(err) {
  return err instanceof BaseError;
}

function createBoomError(name, statusCode, message, code) {
  return class extends BaseError {
    constructor() {
      super();

      this.name = name;
      if (code) {
        this.code = code;
      } else {
        this.code = Decamelize(name);
      }

      this.message = undefined;
      if (typeof message === 'string') {
        this.message = message;
      } else if (typeof message === 'function') {
        this.message = message.apply(null, arguments);
      }

      Boom.boomify(this, { statusCode });

      if (!message) {
        Reflect.deleteProperty(this.output.payload, 'message');
      }
    }
  }
}

module.exports = {
  isDecoratedBoom,
  createBoomError
};