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4e50b6a1 C |
1 | import { Request, Response, NextFunction, RequestHandler } from 'express' |
2 | import { eachSeries } from 'async' | |
eb080476 C |
3 | |
4 | // Syntactic sugar to avoid try/catch in express controllers | |
5 | // Thanks: https://medium.com/@Abazhenov/using-async-await-in-express-with-node-8-b8af872c0016 | |
4e50b6a1 | 6 | function asyncMiddleware (fun: RequestHandler | RequestHandler[]) { |
eb080476 | 7 | return (req: Request, res: Response, next: NextFunction) => { |
4e50b6a1 C |
8 | if (Array.isArray(fun) === true) { |
9 | return eachSeries(fun as RequestHandler[], (f, cb) => { | |
10 | Promise.resolve(f(req, res, cb)) | |
11 | .catch(next) | |
12 | }, next) | |
13 | } | |
14 | ||
15 | return Promise.resolve((fun as RequestHandler)(req, res, next)) | |
eb080476 C |
16 | .catch(next) |
17 | } | |
18 | } | |
19 | ||
20 | // --------------------------------------------------------------------------- | |
21 | ||
22 | export { | |
23 | asyncMiddleware | |
24 | } |