elk/server/cache-driver.ts

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import type { Driver } from 'unstorage'
2023-02-12 11:56:29 +00:00
import memory from 'unstorage/drivers/memory'
import { defineDriver } from 'unstorage'
export interface CacheDriverOptions {
driver: Driver
}
export default defineDriver((driver: Driver = memory()) => {
const memoryDriver = memory()
return {
...driver,
async hasItem(key: string) {
if (await memoryDriver.hasItem(key))
return true
return driver.hasItem(key, {})
},
async setItem(key: string, value: any) {
await Promise.all([
memoryDriver.setItem(key, value),
driver.setItem?.(key, value, {}),
])
},
async getItem(key: string) {
let value = await memoryDriver.getItem(key)
if (value !== null)
return value
value = await driver.getItem(key)
memoryDriver.setItem(key, value)
return value
},
}
})