Extended from common error, class TError allows create and cofigurate custom errors. Error's configuration allow using logging, user alert, debugging simple and fast.

Because i want unify work with errors. Make it simple and clean.

import { TErrorGroup } from '@rnskv/terror'; 

• Create errors white list;
• Create Errors Groups, using list from 1 step;
• Generate new errors in your code :).

For example, create list with 404 and 500 errors codes. It's object where key is error's name, value - object with next fields: message, status, code.

const errorsList = { PAGE_NOT_FOUND: { message: 'Page not found :(', //Message for user name: 'REQUEST_ERROR', //Name for logging code: 404 //HTTP code }, INTERNAL_SERVER_ERROR: { message: 'Internal Server Error', //Message for user name: 'RESPONSE_ERROR', //Name for logging code: 500 //HTTP code } }; 

Next create new Errors Group. You must specify type!

const params = { type: 'SERVER_ERROR' }; const ServerErrors = new TErrorGroup(params, errorsList) 

Great! Now you have new Errors Group and you can generate new errors.

It's simple :)

 try { throw ServerErrors.create('PAGE_NOT_FOUND'); // Or throw ServerErrors.create('INTERNAL_SERVER_ERROR'); } catch(error) { console.log('Catch error:', error) } 

You can connect your logger function to Errors Group. For example, use console.error. Connect it to ServerErrors.

ServerErrors.setLogger(console.error); 

Now every errors throw in this group will call console.error.