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45 lines
1.0 KiB
45 lines
1.0 KiB
2 years ago
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// @flow
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import type { Storage } from '../types'
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function noop() {}
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let noopStorage = {
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getItem: noop,
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setItem: noop,
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removeItem: noop,
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}
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function hasStorage(storageType) {
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if (typeof self !== 'object' || !(storageType in self)) {
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return false
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}
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try {
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let storage = self[storageType]
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const testKey = `redux-persist ${storageType} test`
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storage.setItem(testKey, 'test')
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storage.getItem(testKey)
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storage.removeItem(testKey)
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} catch (e) {
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if (process.env.NODE_ENV !== 'production')
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console.warn(
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`redux-persist ${storageType} test failed, persistence will be disabled.`
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)
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return false
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}
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return true
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}
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export default function getStorage(type: string): Storage {
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const storageType = `${type}Storage`
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if (hasStorage(storageType)) return self[storageType]
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else {
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if (process.env.NODE_ENV !== 'production') {
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console.error(
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`redux-persist failed to create sync storage. falling back to noop storage.`
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)
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}
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return noopStorage
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}
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}
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