74 lines
2.3 KiB
TypeScript
74 lines
2.3 KiB
TypeScript
// src/main/redis/keys.ts
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// Key 操作
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import { getClient } from './connection'
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export async function getKeyType(id: string, key: string): Promise<string> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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return client.type(key)
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}
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export async function getKeyTTL(id: string, key: string): Promise<number> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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return client.ttl(key)
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}
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export async function deleteKey(id: string, key: string): Promise<void> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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await client.del(key)
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}
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export async function setKeyTTL(id: string, key: string, ttl: number): Promise<void> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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if (ttl < 0) {
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await client.persist(key)
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} else {
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await client.expire(key, ttl)
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}
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}
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export async function renameKey(id: string, oldKey: string, newKey: string): Promise<void> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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await client.rename(oldKey, newKey)
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}
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export async function existsKey(id: string, key: string): Promise<boolean> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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return (await client.exists(key)) === 1
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}
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export async function batchDelete(id: string, keys: string[]): Promise<number> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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if (keys.length === 0) return 0
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const pipeline = client.pipeline()
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for (const key of keys) {
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pipeline.del(key)
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}
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const results = await pipeline.exec()
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return results?.filter(([err]) => !err).length ?? 0
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}
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export async function memoryUsage(id: string, key: string): Promise<number | null> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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return client.memory('USAGE', key) as Promise<number | null>
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}
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export async function scanKeys(
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id: string,
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cursor: string,
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pattern: string,
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count: number
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): Promise<{ cursor: string; keys: string[] }> {
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const client = getClient(id)
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if (!client) throw new Error(`Client ${id} not found`)
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const [nextCursor, keys] = await client.scan(cursor, 'MATCH', pattern, 'COUNT', count)
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return { cursor: nextCursor, keys }
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}
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