Expo Fingerprint

const assert = require('node:assert');

const fileChunkMap = {};

/** @type {import('@expo/fingerprint').Config} */
const config = {
  fileHookTransform: (source, chunk, isEndOfFile, encoding) => {
    // Remove the "updates" section from the app config
    if (source.type === 'contents' && source.id === 'expoConfig') {
      assert(isEndOfFile, 'contents source is expected to have single chunk.');
      const config = JSON.parse(chunk);
      delete config.updates;
      return JSON.stringify(config);
    }

    // Transform content sources to an empty string
    if (source.type === 'contents' && source.id === 'packageJson:scripts') {
      return '';
    }

    // Transform a file source by replacing dynamic values
    if (source.type === 'file' && source.filePath === 'eas.json') {
      return chunk.toString().replace(/MyApp-Dev/g, 'MyApp');
    }

    // Transform a large file that is processed in multiple chunks
    // To get the full file, buffer all chunks and return them all at once
    if (source.type === 'file' && source.filePath === 'assets/large-image.jpg') {
      let receivedBuffer = fileChunkMap[source.filePath] ?? Buffer.alloc(0);
      if (chunk != null) {
        const buffer = typeof chunk === 'string' ? Buffer.from(chunk, encoding) : chunk;
        receivedBuffer = Buffer.concat([receivedBuffer, buffer]);
        fileChunkMap[source.filePath] = receivedBuffer;
      }
      if (!isEndOfFile) {
        return null;
      }
      fileChunkMap[source.filePath] = null;
      // The full payload is available here and you can transform it as needed.
      receivedBuffer = receivedBuffer.toString().replace(/SensitiveData/g, 'StableData');
      return receivedBuffer;
    }

    // For other sources, just return the chunk
    return chunk;
  },
};

module.exports = config;

const { withInfoPlist } = require('expo/config-plugins');

const withMyPlugin = (config) => {
  return withInfoPlist(config, (config) => {
    config.modResults.NSLocationWhenInUseUsageDescription = 'Allow $(PRODUCT_NAME) to use your location';
    return config;
  });
};

export default ({ config }) => {
  config.plugins ||= [];
  config.plugins.push(withMyPlugin);
  config.plugins.push((config) => config);
  return config;
};

const { withInfoPlist } = require('expo/config-plugins');

const withMyPlugin = config => {
  return withInfoPlist(config, config => {
    config.modResults.NSLocationWhenInUseUsageDescription =
      'Allow $(PRODUCT_NAME) to use your location';
    return config;
  });
};

module.exports = withMyPlugin;

{
  "expo": {
    %%placeholder-start%%... %%placeholder-end%%
    "plugins": "./plugins/withMyPlugin"
  }
}