someCollection.ts

const someQuestion: CollectionConfig = {
    slug: 'some-collection',
    custom: {
        cacheControl: 'public, max-age=300, stale-while-revalidate=300, stale-if-error=86400',
    },
}

useCache.ts

import { NextFunction, Request, Response } from 'express'
import { PayloadRequest } from 'payload/types'

type Middleware = (req: Request, res: Response, next: NextFunction) => void

let globalsMap = new Map<string, number>()
let initialGlobals = false

export const useCache: Middleware = (req: PayloadRequest, res, next) => {
    if (req?.payloadAPI !== 'REST') {
        req.payload.logger.info(`Not using cache for ${req?.payloadAPI} API`)
        next()
        return
    }

    if (req.collection && req.collection.config.custom?.cacheControl) {
        const cacheControl = req.collection.config.custom.cacheControl
        req.payload.logger.info(`Cache-Control: ${cacheControl}`)
        res.set('Cache-Control', cacheControl)
        next()
        return
    }

    if (!req.url.startsWith('/globals')) {
        next()
        return
    }

    if (!initialGlobals) {
        req.payload.logger.info('Initializing globals cache')
        initialGlobals = true
        req.payload.globals.config.forEach((global, index) => {
            globalsMap.set(global.slug, index)
        })
    }
    const slug = req.url.split('/').pop()

    if (globalsMap.has(slug) && req.payload.globals.config[globalsMap.get(slug)].custom?.cacheControl) {
        const cacheControl = req.payload.globals.config[globalsMap.get(slug)].custom.cacheControl
        req.payload.logger.info(`Cache-Control: ${cacheControl}`)
        res.set('Cache-Control', cacheControl)
    }

    next()
}