express-async-wrap

Allows the use of ES2016 async functions as Express route handlers.

Install

``javascript
npm i express-async-wrap
`

Usage

To use in place of a normal route handler:

`javascript
import wrap from 'express-async-wrap';

function makeResult(result) {
return new Promise((resolve) => {
setTimeout(() => resolve(result), 10);
});
}

app.get('/', wrap(async function(req, res) {
const results = [];

for(let i = 0; i < 5; i++) {
results.push(makeResult(test${i}));
}

res.send((await* results).join());
}));
`

To use as an error handler:

`javascript
import wrap from 'express-async-wrap';

app.get('/', wrap(async function(req, res, next) {
next(new Error('error'));
}));
app.use(wrap(async function(err, req, res, next) {
res.status(500).send('error');
}));
``