app-version-checker

app-version-checker is a library for checking whether a mobile app is up-to-date or not. It currently supports iOS and Android platforms.

Installation

yarn add app-version-checker or npm install app-version-checker

Usage

app-version-checker exports a single function called checkAppVersion that takes an object as its argument. The object should contain the following properties:

platform (string): The platform of the app ("ios" or "android") appId (string): The app ID for the app you want to check currentVersion (string): The version number of the app you want to compare against fetchFn (function): A function that takes a URL as its argument and returns a Promise that resolves to the response text.

checkAppVersion returns a Promise that resolves to an object with the following properties:

platform (string): The platform of the app ("ios" or "android") status (string): The status of the app ("outdated", "up_to_date", or "not_found") latestVersion (string|null): The version number of the app on the store, or null if the app was not found storeUrl (string): The URL to the app's store listing

Here's an example of how you might use checkAppVersion:

import { checkAppVersion } from 'app-version-checker';
import axios from 'axios';

const fetchFn = async (url) => {
  const { data } = await axios.get(url, { responseType: 'text' });
  return data;
};

const result = await checkAppVersion({
  appId: 'id123456789',
  fetchFn,
  currentVersion: '1.0.0',
  platform: 'ios',
});

console.log(result);

// {
//   platform: 'ios',
//   status: 'up_to_date',
//   latestVersion: '1.0.0',
//   storeUrl: 'https://itunes.apple.com/us/app/myapp/id123456789',
// }

app-version-checker can work with any request library as long as it follows the fetchFn interface. The fetchFn is simply a function that takes a URL as its argument and returns a Promise that resolves to the response text. So, as long as your request library can make HTTP requests and return the response in text format, it should work with app-version-checker. Some examples of request libraries that can be used with app-version-checker include node-fetch, axios, and superagent.