36 lines
789 B
JavaScript
36 lines
789 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/p1', p1);
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app.get('/api/p2', 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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getData()
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.then(data => response.end('ok: ' + data))
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.catch(error => next(error));
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}
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function p2(request, response, next) {
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getDataFails()
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.then(data => response.end(data))
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.catch(next);
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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: ' + error.toString());
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}
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function getData() {
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return Promise.resolve('some data');
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}
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function getDataFails() {
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return Promise.reject('some error');
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}
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