26 lines
569 B
JavaScript
26 lines
569 B
JavaScript
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'use strict';
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const express = require('express');
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const app = express();
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app.get('/api/p', p1);
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app.get('/api/p', p2);
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app.use(errorHandler); // after request handlers
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app.listen(3000, () => console.log('Server is running...'));
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function p1(request, response, next) {
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console.log('p1');
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next();
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}
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function p2(request, response, next) {
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console.log('p2');
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next('error from p2'); // argument makes it an error
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}
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function errorHandler(error, request, response, next) { // there must be 4 arguments
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response.status(500).send(error.toString());
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}
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