remove redis dep from deps.ts and move to redisCache.ts
This commit is contained in:
parent
4462d7d832
commit
62b2aa07de
4 changed files with 106 additions and 109 deletions
5
deps.ts
5
deps.ts
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@ -2,11 +2,6 @@ export { EventEmitter } from 'https://deno.land/x/event@0.2.1/mod.ts'
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export { unzlib } from 'https://denopkg.com/DjDeveloperr/denoflate@1.2/mod.ts'
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export { unzlib } from 'https://denopkg.com/DjDeveloperr/denoflate@1.2/mod.ts'
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export { fetchAuto } from 'https://deno.land/x/fetchbase64@1.0.0/mod.ts'
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export { fetchAuto } from 'https://deno.land/x/fetchbase64@1.0.0/mod.ts'
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export { parse } from 'https://deno.land/x/mutil@0.1.2/mod.ts'
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export { parse } from 'https://deno.land/x/mutil@0.1.2/mod.ts'
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export { connect } from 'https://deno.land/x/redis@v0.14.1/mod.ts'
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export type {
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Redis,
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RedisConnectOptions
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} from 'https://deno.land/x/redis@v0.14.1/mod.ts'
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export { walk } from 'https://deno.land/std@0.86.0/fs/walk.ts'
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export { walk } from 'https://deno.land/std@0.86.0/fs/walk.ts'
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export { join } from 'https://deno.land/std@0.86.0/path/mod.ts'
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export { join } from 'https://deno.land/std@0.86.0/path/mod.ts'
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export { Mixin } from 'https://esm.sh/ts-mixer@5.4.0'
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export { Mixin } from 'https://esm.sh/ts-mixer@5.4.0'
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1
mod.ts
1
mod.ts
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@ -166,3 +166,4 @@ export type { VoiceStatePayload } from './src/types/voice.ts'
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export type { WebhookPayload } from './src/types/webhook.ts'
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export type { WebhookPayload } from './src/types/webhook.ts'
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export * from './src/models/collectors.ts'
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export * from './src/models/collectors.ts'
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export type { Dict } from './src/utils/dict.ts'
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export type { Dict } from './src/utils/dict.ts'
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export * from './src/models/redisCache.ts'
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@ -1,5 +1,4 @@
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import { Collection } from '../utils/collection.ts'
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import { Collection } from '../utils/collection.ts'
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import { connect, Redis, RedisConnectOptions } from '../../deps.ts'
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/**
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/**
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* ICacheAdapter is the interface to be implemented by Cache Adapters for them to be usable with Harmony.
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* ICacheAdapter is the interface to be implemented by Cache Adapters for them to be usable with Harmony.
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@ -71,106 +70,3 @@ export class DefaultCacheAdapter implements ICacheAdapter {
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return delete this.data[cacheName]
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return delete this.data[cacheName]
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}
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}
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}
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}
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/** Redis Cache Adapter for using Redis as a cache-provider. */
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export class RedisCacheAdapter implements ICacheAdapter {
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_redis: Promise<Redis>
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redis?: Redis
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ready: boolean = false
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readonly _expireIntervalTimer: number = 5000
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private _expireInterval?: number
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constructor(options: RedisConnectOptions) {
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this._redis = connect(options)
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this._redis.then(
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(redis) => {
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this.redis = redis
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this.ready = true
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this._startExpireInterval()
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},
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() => {
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// TODO: Make error for this
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}
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)
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}
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private _startExpireInterval(): void {
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this._expireInterval = setInterval(() => {
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this.redis?.scan(0, { pattern: '*:expires' }).then(([_, names]) => {
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for (const name of names) {
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this.redis?.hvals(name).then((vals) => {
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for (const val of vals) {
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const expireVal: {
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name: string
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key: string
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at: number
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} = JSON.parse(val)
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const expired = new Date().getTime() > expireVal.at
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if (expired) this.redis?.hdel(expireVal.name, expireVal.key)
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}
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})
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}
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})
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}, this._expireIntervalTimer)
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}
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async _checkReady(): Promise<void> {
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if (!this.ready) await this._redis
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}
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async get(cacheName: string, key: string): Promise<string | undefined> {
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await this._checkReady()
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const cache = await this.redis?.hget(cacheName, key)
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if (cache === undefined) return
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try {
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return JSON.parse(cache)
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} catch (e) {
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return cache
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}
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}
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async set(
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cacheName: string,
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key: string,
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value: any,
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expire?: number
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): Promise<number | undefined> {
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await this._checkReady()
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const result = await this.redis?.hset(
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cacheName,
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key,
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typeof value === 'object' ? JSON.stringify(value) : value
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)
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if (expire !== undefined) {
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await this.redis?.hset(
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`${cacheName}:expires`,
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key,
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JSON.stringify({
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name: cacheName,
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key,
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at: new Date().getTime() + expire
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})
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)
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}
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return result
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}
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async delete(cacheName: string, key: string): Promise<boolean> {
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await this._checkReady()
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const exists = await this.redis?.hexists(cacheName, key)
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if (exists === 0) return false
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await this.redis?.hdel(cacheName, key)
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return true
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}
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async array(cacheName: string): Promise<any[] | undefined> {
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await this._checkReady()
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const data = await this.redis?.hvals(cacheName)
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return data?.map((e: string) => JSON.parse(e))
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}
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async deleteCache(cacheName: string): Promise<boolean> {
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await this._checkReady()
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return (await this.redis?.del(cacheName)) !== 0
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}
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}
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105
src/models/redisCache.ts
Normal file
105
src/models/redisCache.ts
Normal file
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@ -0,0 +1,105 @@
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import { ICacheAdapter } from './cacheAdapter.ts'
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import { connect, Redis, RedisConnectOptions } from 'https://deno.land/x/redis@v0.14.1/mod.ts'
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/** Redis Cache Adapter for using Redis as a cache-provider. */
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export class RedisCacheAdapter implements ICacheAdapter {
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_redis: Promise<Redis>
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redis?: Redis
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ready: boolean = false
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readonly _expireIntervalTimer: number = 5000
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private _expireInterval?: number
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constructor(options: RedisConnectOptions) {
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this._redis = connect(options)
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this._redis.then(
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(redis) => {
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this.redis = redis
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this.ready = true
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this._startExpireInterval()
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},
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() => {
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// TODO: Make error for this
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}
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)
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}
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private _startExpireInterval(): void {
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this._expireInterval = setInterval(() => {
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this.redis?.scan(0, { pattern: '*:expires' }).then(([_, names]) => {
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for (const name of names) {
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this.redis?.hvals(name).then((vals) => {
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for (const val of vals) {
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const expireVal: {
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name: string
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key: string
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at: number
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} = JSON.parse(val)
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const expired = new Date().getTime() > expireVal.at
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if (expired) this.redis?.hdel(expireVal.name, expireVal.key)
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}
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})
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}
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})
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}, this._expireIntervalTimer)
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}
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async _checkReady(): Promise<void> {
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if (!this.ready) await this._redis
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}
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async get(cacheName: string, key: string): Promise<string | undefined> {
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await this._checkReady()
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const cache = await this.redis?.hget(cacheName, key)
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if (cache === undefined) return
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try {
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return JSON.parse(cache)
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} catch (e) {
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return cache
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}
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}
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async set(
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cacheName: string,
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key: string,
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value: any,
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expire?: number
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): Promise<number | undefined> {
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await this._checkReady()
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const result = await this.redis?.hset(
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cacheName,
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key,
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typeof value === 'object' ? JSON.stringify(value) : value
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)
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if (expire !== undefined) {
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await this.redis?.hset(
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`${cacheName}:expires`,
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key,
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JSON.stringify({
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name: cacheName,
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key,
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at: new Date().getTime() + expire
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})
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)
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}
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return result
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}
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async delete(cacheName: string, key: string): Promise<boolean> {
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await this._checkReady()
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const exists = await this.redis?.hexists(cacheName, key)
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if (exists === 0) return false
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await this.redis?.hdel(cacheName, key)
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return true
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}
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async array(cacheName: string): Promise<any[] | undefined> {
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await this._checkReady()
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const data = await this.redis?.hvals(cacheName)
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return data?.map((e: string) => JSON.parse(e))
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}
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async deleteCache(cacheName: string): Promise<boolean> {
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await this._checkReady()
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return (await this.redis?.del(cacheName)) !== 0
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}
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}
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