41 lines
1022 B
TypeScript
41 lines
1022 B
TypeScript
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import type { Driver } from 'unstorage'
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// @ts-expect-error unstorage needs to provide backwards-compatible subpath types
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import _memory from 'unstorage/drivers/memory'
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import { defineDriver } from 'unstorage'
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const memory = _memory as typeof import('unstorage/dist/drivers/memory')['default']
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export interface CacheDriverOptions {
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driver: Driver
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}
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export default defineDriver((driver: Driver = memory()) => {
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const memoryDriver = memory()
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return {
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...driver,
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async hasItem(key: string) {
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if (await memoryDriver.hasItem(key))
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return true
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return driver.hasItem(key)
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},
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async setItem(key: string, value: any) {
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await Promise.all([
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memoryDriver.setItem(key, value),
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driver.setItem?.(key, value),
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])
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},
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async getItem(key: string) {
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let value = await memoryDriver.getItem(key)
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if (value !== null)
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return value
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value = await driver.getItem(key)
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memoryDriver.setItem(key, value)
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return value
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},
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}
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})
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