api-problem

import Problem from 'api-problem'; import http from 'http'; // Create a basic 404 Not Found problem const notFoundProblem = new Problem(404); console.log('Basic 404 Problem:', notFoundProblem.toObject()); // Create a 403 Forbidden problem with a custom title const forbiddenProblem = new Problem(403, 'Access to resource denied'); console.log('Custom Title Problem:', forbiddenProblem.toObject()); // Create a custom problem type with additional details const outOfCreditProblem = new Problem( 403, 'You do not have enough credit', 'https://example.com/probs/out-of-credit', { detail: 'Your current balance is 30, but that costs 50 for this operation.', instance: '/account/12345/transactions/abc', balance: 30 } ); console.log('Custom Detailed Problem:', outOfCreditProblem.toObject()); // Example of sending a problem via an HTTP response (Node.js http module) const server = http.createServer((req, res) => { if (req.url === '/error') { const problem = new Problem(400, 'Invalid parameters in request', 'https://example.com/probs/invalid-params', { errors: [ { field: 'param1', message: 'Must be a number' }, { field: 'param2', message: 'Cannot be empty' } ] }); problem.send(res); } else { res.writeHead(200, { 'Content-Type': 'text/plain' }); res.end('Hello World'); } }); // server.listen(3000, () => console.log('Server running on http://localhost:3000')); // To test: curl -i http://localhost:3000/error // (Uncomment server.listen and run the file to test the .send() method)