@datadog/mobile-react-native/lib/module/sdk/DatadogEventEmitter/DatadogBatchedBridgeEventEmitter.js

A client-side React Native module to interact with Datadog

/*
 * Unless explicitly stated otherwise all files in this repository are licensed under the Apache License Version 2.0.
 * This product includes software developed at Datadog (https://www.datadoghq.com/).
 * Copyright 2016-Present Datadog, Inc.
 */

export class DatadogBatchedBridgeEventEmitter {
  constructor(errorHandler) {
    this.errorHandler = errorHandler;
    this.listeners = {};
  }
  initialize() {
    try {
      // eslint-disable-next-line global-require, @typescript-eslint/no-var-requires
      const BatchedBridge = require('react-native/Libraries/BatchedBridge/BatchedBridge');
      const batchedBridge = BatchedBridge.default ?? BatchedBridge;
      batchedBridge.registerCallableModule('DatadogInternalReactBridge', this);
      return true;
    } catch (err) {
      this.errorHandler(`ERROR: cannot initialize BatchedBridge: ${err}`);
      return false;
    }
  }
  addListener(eventName, callback) {
    this.listeners[eventName] = callback;
  }
  removeAllListeners(eventName) {
    delete this.listeners[eventName];
  }

  // Called directly from native layer.
  __datadogOnMessageReceived(eventName, data) {
    const callback = this.listeners[eventName];
    if (!callback) {
      this.errorHandler(`ERROR: No listeners registered for received event ${eventName} with data: ${JSON.stringify(data, null, 4)}`);
      return;
    }
    callback(data);
  }
}
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