Kosa means "error" in Swahili.

This package introduces a managed scoped Error class. The Error Object which is instanciated doesn't have stacktrace on purpose. It is designed to be and stay simple !!!

Here is an exemple:

{
  statusCode: 400,
  message: 'USER_REGISTER_BAD_REQUEST', // Comes from scope & status
  meta: { // Optional - contextual information
    error: '...',
    context: '...',
    details: {
      ...
    },
    validations: [
      {
        field: 'email',
        message: 'missing tld'
      }, {
        field: 'firstname',
        message: 'should start with a capital'
      }
    ]
    ...
  }
}

Here are the constructor arguments:

1. scope required string
2. statusCode optional number
3. meta optional object with contextual information you might want to provide about the error

Here is how you use it in your code.

const Kosa = require('@webinmove/kosa');

if (!user) {
  throw new Kosa('USER', 404);
}

if (vadlidationErrors.length > 0) {
  throw new Kosa('USER_REGISTER', 400, vadlidationErrors);
}

• 400 BAD_REQUEST
• 401 UNAUTHORIZED
• 403 FORBIDDEN
• 404 NOT_FOUND
• 405 METHOD_NOT_ALLOWED
• 408 REQUEST_TIMEOUT
• 409 CONFLICT
• 415 UNSUPPORTED_MEDIA_TYPE
• 418 TEAPOT
• 429 TOO_MANY_REQUESTS
• 500 INTERNAL_SERVER_ERROR (default)