react-native-mmkv/lib/module/NativeMmkv.js

The fastest key/value storage for React Native. ~30x faster than AsyncStorage! Works on Android, iOS and Web.

"use strict";

import { TurboModuleRegistry } from 'react-native';
import { ModuleNotFoundError } from './ModuleNotFoundError';
import { getMMKVPlatformContextTurboModule } from './NativeMmkvPlatformContext';

/**
 * IMPORTANT: These types are also in the Types.ts file.
 * Due to how react-native-codegen works these are required here as the spec types can not be separated from spec.
 * We also need the types separate to allow bypassing importing turbo module registry in web
 */
/**
 * Configures the mode of the MMKV instance.
 */
export let Mode = /*#__PURE__*/function (Mode) {
  Mode[Mode["SINGLE_PROCESS"] = 0] = "SINGLE_PROCESS";
  Mode[Mode["MULTI_PROCESS"] = 1] = "MULTI_PROCESS";
  return Mode;
}({});

/**
 * Used for configuration of a single MMKV instance.
 */

let mmkvModule;
export function getMMKVTurboModule() {
  try {
    if (mmkvModule == null) {
      // 1. Load MMKV TurboModule
      mmkvModule = TurboModuleRegistry.getEnforcing('MmkvCxx');

      // 2. Get the PlatformContext TurboModule as well
      const platformContext = getMMKVPlatformContextTurboModule();

      // 3. Initialize it with the documents directory from platform-specific context
      const basePath = platformContext.getBaseDirectory();
      mmkvModule.initialize(basePath);
    }
    return mmkvModule;
  } catch (cause) {
    // TurboModule could not be found!
    throw new ModuleNotFoundError(cause);
  }
}
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