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Commit | Line | Data |
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7a9e420a | 1 | import Bluebird from 'bluebird' |
a2431b7d | 2 | import { NextFunction, Request, RequestHandler, Response } from 'express' |
523990db | 3 | import { ValidationChain } from 'express-validator' |
f8360396 | 4 | import { ExpressPromiseHandler } from '@server/types/express-handler' |
ba5a8d89 | 5 | import { retryTransactionWrapper } from '../helpers/database-utils' |
eb080476 | 6 | |
7a9e420a | 7 | // Syntactic sugar to avoid try/catch in express controllers/middlewares |
a2431b7d | 8 | |
ba5a8d89 | 9 | export type RequestPromiseHandler = ValidationChain | ExpressPromiseHandler |
a2431b7d C |
10 | |
11 | function asyncMiddleware (fun: RequestPromiseHandler | RequestPromiseHandler[]) { | |
eb080476 | 12 | return (req: Request, res: Response, next: NextFunction) => { |
4e50b6a1 | 13 | if (Array.isArray(fun) === true) { |
7a9e420a C |
14 | return Bluebird.each(fun as RequestPromiseHandler[], f => { |
15 | return new Promise<void>((resolve, reject) => { | |
16 | return asyncMiddleware(f)(req, res, err => { | |
17 | if (err) return reject(err) | |
18 | ||
19 | return resolve() | |
20 | }) | |
21 | }) | |
22 | }).then(() => next()) | |
23 | .catch(err => next(err)) | |
4e50b6a1 C |
24 | } |
25 | ||
26 | return Promise.resolve((fun as RequestHandler)(req, res, next)) | |
e3a682a8 | 27 | .catch(err => next(err)) |
eb080476 C |
28 | } |
29 | } | |
30 | ||
523990db | 31 | function asyncRetryTransactionMiddleware (fun: (req: Request, res: Response, next: NextFunction) => Promise<any>) { |
90d4bb81 C |
32 | return (req: Request, res: Response, next: NextFunction) => { |
33 | return Promise.resolve( | |
34 | retryTransactionWrapper(fun, req, res, next) | |
35 | ).catch(err => next(err)) | |
36 | } | |
37 | } | |
38 | ||
eb080476 C |
39 | // --------------------------------------------------------------------------- |
40 | ||
41 | export { | |
90d4bb81 C |
42 | asyncMiddleware, |
43 | asyncRetryTransactionMiddleware | |
eb080476 | 44 | } |