79ea9e1897
The idea is that REST handlers always fail with throwing an Error (subclass of InteroperableError). The InteroperableError contains type and data field which are JSON-serialized and sent to client. It's up to the client to interpret the error and choose an appropriate way to present it.
38 lines
1,000 B
JavaScript
38 lines
1,000 B
JavaScript
'use strict';
|
|
|
|
const express = require('express');
|
|
|
|
function safeAsyncHandler(handler) {
|
|
return function(req, res, next) {
|
|
handler(req, res).catch(error => next(error));
|
|
};
|
|
}
|
|
|
|
function replaceLast(elems, replaceFn) {
|
|
if (elems.length === 0) {
|
|
return elems;
|
|
}
|
|
|
|
const lastElem = elems[elems.size - 1];
|
|
const replacement = replaceFn(lastElem);
|
|
|
|
elems[elems.size - 1] = replacement;
|
|
|
|
return elems;
|
|
}
|
|
|
|
function create() {
|
|
const router = new express.Router();
|
|
|
|
router.getAsync = (path, ...handlers) => router.get(path, ...replaceLast(handlers, safeAsyncHandler));
|
|
router.postAsync = (path, ...handlers) => router.post(path, ...replaceLast(handlers, safeAsyncHandler));
|
|
router.putAsync = (path, ...handlers) => router.put(path, ...replaceLast(handlers, safeAsyncHandler));
|
|
router.deleteAsync = (path, ...handlers) => router.delete(path, ...replaceLast(handlers, safeAsyncHandler));
|
|
|
|
return router;
|
|
}
|
|
|
|
module.exports = {
|
|
create
|
|
};
|
|
|