unikvstore

A utility library for managing storages through a simple key-value pair storage interface, including localStorage, google drive, dropbox, etc.

Install

npm install unikvstore

Usage

Use MemoryStorage:

import { MemoryStorage, IStorage } from "unikvstore";

async function main() {
    const storage: IStorage = new MemoryStorage();

    await storage.set("key", "value");
    console.log("get: ", await storage.get("key"));
    console.log("contains: ", await storage.contains("key"));
}

main();

Use DropboxStorage:

import { DropboxStorage, IStorage } from "unikvstore";

async function main() {
    const accessToken = process.env.DROPBOX_ACCESS_TOKEN;
    console.log("dropbox accessToken: ", accessToken);
    const storage: IStorage = new DropboxStorage(accessToken);

    await storage.set("key", "value");
    console.log("get: ", await storage.get("key"));
    console.log("contains: ", await storage.contains("key"));

    await storage.clear();

    console.log("contains after clearing: ", await storage.contains("key"));
}

main();

Use GoogleDriveStorage:

import { GoogleDriveStorage, IStorage } from "unikvstore";

async function main() {
    const accessToken = process.env.GOOGLE_DRIVE_ACCESS_TOKEN;
    console.log("google drive accessToken: ", accessToken);
    const storage: IStorage = new GoogleDriveStorage(accessToken);

    await storage.set("key", "value");
    console.log("get: ", await storage.get("key"));
    console.log("contains: ", await storage.contains("key"));

    await storage.clear();

    console.log("contains after clearing: ", await storage.contains("key"));
}

main();

Interface

For more details about interface to see this.

Core interface:

interface IStorage {
  keys(): Promise<string[]>;

  // Returns whether the key exists.
  contains(key: string | Promise<string>): Promise<boolean>;
  // Returns the value given the key.
  // If key not found
  // a. not specifying defaultValue, throw `KeyNotFound` error.
  // b. otherwise returns defaultValue.
  get(
    key: string | Promise<string>,
    defaultValue?: string | Promise<string>
  ): Promise<string>;
  // Sets the value for given key.
  set(
    key: string | Promise<string>,
    value: string | Promise<string>
  ): Promise<void>;

  delete(key: string | Promise<string>): Promise<void>;

  clear(): Promise<void>;
}