28 lines
919 B
TypeScript
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
|
|
}
|