Function that turns an async (promise) function into a function that can be passed to express.js as a handler. Rejections will get forwarded to express.
The function exported by this module can be used to wrap any express.js handler type:
- Route handlers.
- Param handlers.
- Middleware.
- Error-handling middleware.
- Arrays of any of the above.
const asyncWrap = require('express-async-wrapped');
router.get('/foo', asyncWrap(async (req, res) => {
res.json(await getSomeData(req));
}));
router.use(asyncWrap(async (req, res, next) => {
// await ...
next();
}));
router.param('foo', asyncWrap(async (req, res, next, id) => {
req.foo = await getTheFoo(id);
next();
}));
router.use(asyncWrap(async (err, req, res, next) => {
// await ...
res.status(500).end();
}));