48 lines
1.5 KiB
TypeScript
48 lines
1.5 KiB
TypeScript
import { NextFunction, Request, RequestHandler, Response } from 'express'
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import { ValidationChain } from 'express-validator'
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import { ExpressPromiseHandler } from '@server/types/express-handler.js'
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import { retryTransactionWrapper } from '../helpers/database-utils.js'
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// Syntactic sugar to avoid try/catch in express controllers/middlewares
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export type RequestPromiseHandler = ValidationChain | ExpressPromiseHandler
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function asyncMiddleware (fun: RequestPromiseHandler | RequestPromiseHandler[]) {
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return async (req: Request, res: Response, next: NextFunction) => {
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if (Array.isArray(fun) !== true) {
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return Promise.resolve((fun as RequestHandler)(req, res, next))
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.catch(err => next(err))
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}
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try {
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for (const f of (fun as RequestPromiseHandler[])) {
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await new Promise<void>((resolve, reject) => {
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return asyncMiddleware(f)(req, res, err => {
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if (err) return reject(err)
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return resolve()
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})
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})
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}
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next()
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} catch (err) {
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next(err)
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}
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}
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}
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function asyncRetryTransactionMiddleware (fun: (req: Request, res: Response, next: NextFunction) => Promise<any>) {
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return (req: Request, res: Response, next: NextFunction) => {
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return Promise.resolve(
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retryTransactionWrapper(fun, req, res, next)
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).catch(err => next(err))
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}
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}
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// ---------------------------------------------------------------------------
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export {
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asyncMiddleware,
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asyncRetryTransactionMiddleware
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}
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