vwo-fme-node-sdk/lib/packages/network-layer/client/NetworkServerLessClient.ts

VWO Node/JavaScript SDK for Feature Management and Experimentation

/**
 * Copyright 2024-2025 Wingify Software Pvt. Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { sendGetCall, sendPostCall } from '../../../utils/FetchUtil';
import { dynamic } from '../../../types/Common';
import { Deferred } from '../../../utils/PromiseUtil';

import { RequestModel } from '../models/RequestModel';
import { ResponseModel } from '../models/ResponseModel';
import { NetworkClientInterface } from './NetworkClientInterface';

/**
 * Implements the NetworkClientInterface to handle network requests.
 */
export class NetworkServerLessClient implements NetworkClientInterface {
  /**
   * Performs a GET request using the provided RequestModel.
   * @param {RequestModel} requestModel - The model containing request options.
   * @returns {Promise<ResponseModel>} A promise that resolves to a ResponseModel.
   */
  GET(requestModel: RequestModel): Promise<ResponseModel> {
    const deferred = new Deferred();

    // Extract network options from the request model.
    const networkOptions: Record<string, dynamic> = requestModel.getOptions();
    const responseModel = new ResponseModel();

    sendGetCall(networkOptions)
      .then((data: dynamic) => {
        responseModel.setData(data);
        deferred.resolve(responseModel);
      })
      .catch((error: dynamic) => {
        responseModel.setError(error);
        deferred.reject(responseModel);
      });

    return deferred.promise;
  }

  /**
   * Performs a POST request using the provided RequestModel.
   * @param {RequestModel} request - The model containing request options.
   * @returns {Promise<ResponseModel>} A promise that resolves or rejects with a ResponseModel.
   */
  POST(request: RequestModel): Promise<ResponseModel> {
    const deferred = new Deferred();
    const networkOptions: Record<string, dynamic> = request.getOptions();
    const responseModel = new ResponseModel();

    sendPostCall(networkOptions)
      .then((data: dynamic) => {
        responseModel.setData(data);
        deferred.resolve(responseModel);
      })
      .catch((error: dynamic) => {
        responseModel.setError(error);
        deferred.reject(responseModel);
      });
    return deferred.promise;
  }
}