Custom expo update server using NestJS

• There is currently an issue with expo-updates that forces it to override all asset urls with expo cdn urls, even when using a custom updates server.
• This is fine if expo cdn server is working properly for you, but if you want to change this default behavior for any reason, there is a way to modify your project's expo-updates package directly via patch-package or something.

• Need Mysql or MariaDB

• create new certificate (if you want to use code signing)

  yarn certificate:generate

• install dependencies

  yarn install

# development
yarn start

# watch mode
yarn start:dev

# production mode
yarn start:prod

1. Modify app.config.js or something.

   // in app.config.js
   module.exports = {
     // ...
   
     // Remove exist options
     // updates: {
     //   url: `https://u.expo.dev/${expoProjectId}`,
     //   fallbackToCacheTimeout: 0,
     // },
   
     // Use it instead
     updates: {
       url: `https://example.com/api/update/expo/manifests/release/default/latest`,
       // or use releaseName
       // url: `https://example.com/api/update/expo/manifests/release/${releaseName}/latest`,
       enabled: true,
       fallbackToCacheTimeout: 30000,
       codeSigningCertificate: './secrets/certificate.pem',
       codeSigningMetadata: { keyid: 'main', alg: 'rsa-v1_5-sha256' },
     },
     // ...
   };

2. Rebuild your app.

3. Upload new release to your server.

   ./scripts/upload/sh -d /path/to/build -v 1.0.0 https://example.com/api/update/expo/upload

4. Rerun your app to get new update.

5. Enjoy!

• Add tests
• Add pretty frontend gui
• Add compressed build file upload (such as build.tar.gz)
• Add importable NestJS module
• Add multiple app support
• Provide device-specific manifests based on updater IDs