AppException

AppException is a small and easy-to-use HTTP error library for Node. It's an addition to HttpException

Exceptions vs Errors

Features

AppException improves HttpException work making easier to create errors with custom application codes.

Node's http module

How to Use

import AppException from 'app-exception';
 
// via the AppException class. Parameters: message, application error code, http error code
const errorOne = new AppException('error message', 9, 500);
 
// via the createError factory
const errorTwo = AppException.createError();
 
// via AppException's static HTTP status-specific methods
throw AppException.internalServerError('test', 9);
throw AppException.badRequest('test', 9);
 

Integration with Express.js

const app = express();
 
// other stuff
 
// after all your app.use
app.use(async function (err, req, res, next) {
    if(err instanceof HttpException) {
        return res.status(err.status).json(err);
    }
 
    // other error handling stuff
});

Catching any exception and returning as response with Express.js

const app = express();
 
// first app.use
app.use(function (req, res, next) {
    Response.response(res);
    next();
});

Syntax

AppException[httpStatusType]([message], [code])

AppException.internalServerError([message], [code])

AppException.badRequest([message], [code])

• message { String } error message
• code { String / Integer } application error code

Returns a new AppException object.

const error = AppException.badRequest({
  message: 'No user found',
  code: 9
})
 
throw error

new AppException([message], [code], [status])

• message { String } error message
• code { String / Integer } application error code
• status { Integer } http error code

Returns a new AppException object.

throw new AppException('error', 9, 400)

AppException.createError([options])

• options { Object }

Return a new AppException object.

const error = AppException.createError({
  message: 'No user found',
  code: 9,
  status: 400
})
 
throw error

Contact

For support and questions contact mail me at [e-mail]

Licence

MIT