@segment/analytics-next/src/core/storage/memoryStorage.ts

Analytics Next (aka Analytics 2.0) is the latest version of Segment’s JavaScript SDK - enabling you to send your data to any tool without having to learn, test, or use a new API every time.

import { Store, StorageObject } from './types'

/**
 * Data Storage using in memory object
 */
export class MemoryStorage<Data extends StorageObject = StorageObject>
  implements Store<Data>
{
  private cache: Record<string, unknown> = {}

  get<K extends keyof Data>(key: K): Data[K] | null {
    return (this.cache[key] ?? null) as Data[K] | null
  }

  set<K extends keyof Data>(key: K, value: Data[K] | null): void {
    this.cache[key] = value
  }

  remove<K extends keyof Data>(key: K): void {
    delete this.cache[key]
  }
}