File storage adapter for Keyv, using json to serialize data fast and small.
File storage adapter for Keyv.
TTL functionality is handled internally by interval scan, don't need to panic about expired data take too much space.
npm install --save keyv keyv-fileconst Keyv = require('keyv')
const { KeyvFile } = require('keyv-file')
const keyv = new Keyv({
store: new KeyvFile()
});
// More options with default value:
const customKeyv = new Keyv({
store: new KeyvFile({
filename: `${os.tmpdir()}/keyv-file/default-rnd-${Math.random().toString(36).slice(2)}.json`, // the file path to store the data
expiredCheckDelay: 24 * 3600 * 1000, // ms, check and remove expired data in each ms
writeDelay: 100, // ms, batch write to disk in a specific duration, enhance write performance.
encode: JSON.stringify, // serialize function
decode: JSON.parse // deserialize function
})
})import KeyvFile, { makeField } from 'keyv-file'
class Kv extends KeyvFile {
constructor() {
super({
filename: './db.json'
})
}
someField = makeField(this, 'field_key')
}
export const kv = new Kv
kv.someField.get(1) // empty return default value 1
kv.someField.set(2) // set value 2
kv.someField.get() // return saved value 2
kv.someField.delete() // delete fieldMIT
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent