28 lines
1.1 KiB
TypeScript
28 lines
1.1 KiB
TypeScript
export interface SessionRecord {
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value: Record<string, unknown>;
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expires: number;
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}
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export interface SessionStore {
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get(key: string): Promise<SessionRecord | undefined>;
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set(key: string, record: SessionRecord): Promise<void>;
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delete(key: string): Promise<void>;
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/** Atomically removes and returns a transaction, preventing callback replay. */
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consume(key: string): Promise<SessionRecord | undefined>;
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}
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export class MemorySessionStore implements SessionStore {
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private readonly records = new Map<string, SessionRecord>();
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async get(key: string): Promise<SessionRecord | undefined> {
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const record = this.records.get(key);
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if (!record || record.expires <= Date.now()) { this.records.delete(key); return undefined; }
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return structuredClone(record);
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}
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async set(key: string, record: SessionRecord): Promise<void> { this.records.set(key, structuredClone(record)); }
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async delete(key: string): Promise<void> { this.records.delete(key); }
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async consume(key: string): Promise<SessionRecord | undefined> {
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const record = this.records.get(key);
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this.records.delete(key);
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return record && record.expires > Date.now() ? structuredClone(record) : undefined;
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}
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}
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