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sepia-search-motore-di-rice.../server/middlewares/async.ts
2021-06-25 10:04:50 +02:00

28 lines
919 B
TypeScript

import { eachSeries } from 'async'
import { NextFunction, Request, RequestHandler, Response } from 'express'
import { ValidationChain } from 'express-validator'
export type ExpressPromiseHandler = (req: Request<any>, res: Response, next: NextFunction) => Promise<any>
export type RequestPromiseHandler = ValidationChain | ExpressPromiseHandler
function asyncMiddleware (fun: RequestPromiseHandler | RequestPromiseHandler[]) {
return (req: Request, res: Response, next: NextFunction) => {
if (Array.isArray(fun) === true) {
return eachSeries(fun as RequestHandler[], (f, cb) => {
Promise.resolve(f(req, res, err => cb(err)))
.catch(err => next(err))
}, next)
}
return Promise.resolve((fun as RequestHandler)(req, res, next))
.catch(err => next(err))
}
}
// ---------------------------------------------------------------------------
export {
asyncMiddleware
}