react-native-moyasar-sdk/lib/module/services/payment_service.js

Official React Native Moyasar SDK - Integrate Credit Cards, Apple Pay, Samsung Pay, and STC Pay with simple interfaces for a seamless payment experience in your React Native app

"use strict";

import { Buffer } from 'buffer';
import { debugLog, errorLog } from "../helpers/debug_log.js";
import { ApiError } from "../models/errors/api_error.js";
import { isMoyasarError, NetworkEndpointError, NetworkError } from "../models/errors/moyasar_errors.js";
import { PaymentResponse } from "../models/api/api_responses/payment_response.js";
import { TokenResponse } from "../models/api/api_responses/token_response.js";
import { PaymentType } from "../models/payment_type.js";
const paymentsApiUrl = 'https://api.moyasar.com/v1/payments';
const tokenApiUrl = 'https://api.moyasar.com/v1/tokens';

/**
 * Makes a POST request.
 * @param url - The URL to send the request to.
 * @param jsonPayload - The encoded JSON payload to send.
 * @param {string} [publishableApiKey] - Moyasar's publishable API key.
 *
 * @throws
 */
async function makeRequest(url, jsonPayload, publishableApiKey) {
  debugLog('Moyasar SDK: Making backend request...');
  const response = await fetch(url, {
    method: 'POST',
    headers: publishableApiKey ? buildRequestHeaders(publishableApiKey) : buildRequestHeaders(),
    body: jsonPayload
  });
  debugLog('Moyasar SDK: Got backend response...');
  const responseJson = await response.json();
  if (!response.ok) {
    errorLog(`Moyasar SDK error: Backend request failed with status code: ${response.status} and message: ${JSON.stringify(responseJson)}`);
    throw new NetworkEndpointError(ApiError.fromJson(responseJson));
  }
  debugLog(`Moyasar SDK: Backend request successful, ${JSON.stringify(responseJson)}`);
  return responseJson;
}

/**
 * Initiates a payment.
 * @param paymentRequest - The payment request object.
 * @param publishableApiKey - Moyasar's publishable API key.
 */
export async function createPayment(paymentRequest, publishableApiKey) {
  const jsonPayload = JSON.stringify(paymentRequest.toJson());
  try {
    const paymentJson = await makeRequest(paymentsApiUrl, jsonPayload, publishableApiKey);
    return PaymentResponse.fromJson(paymentJson, paymentRequest.source.type);
  } catch (error) {
    return isMoyasarError(error) ? error : new NetworkError('Moyasar SDK: An error occured while processing a Credit Card payment');
  }
}

/**
 * Creates a Credit Card token.
 * @param tokenRequest - The token request object.
 * @param publishableApiKey - Moyasar's publishable API key.
 */
export async function createToken(tokenRequest, publishableApiKey) {
  const jsonPayload = JSON.stringify(tokenRequest.toJson());
  try {
    const paymentJson = await makeRequest(tokenApiUrl, jsonPayload, publishableApiKey);
    return TokenResponse.fromJson(paymentJson);
  } catch (error) {
    return isMoyasarError(error) ? error : new NetworkError('Moyasar SDK: An error occured while creating a token request');
  }
}

/**
 * Sends an OTP (One-Time Password) to the specified URL for payment processing.
 * @param otp - The OTP value to be sent.
 * @param url - The URL to which the OTP should be sent.
 * @param paymentSource - The source of the payment, defaults to PaymentType.stcPay.
 */
export async function sendOtp(otp, url, paymentSource = PaymentType.stcPay) {
  const jsonPayload = JSON.stringify({
    otp_value: otp
  });
  try {
    const paymentJson = await makeRequest(url, jsonPayload);
    return PaymentResponse.fromJson(paymentJson, paymentSource);
  } catch (error) {
    return isMoyasarError(error) ? error : new NetworkError('Moyasar SDK: An error occured while processing STC payment');
  }
}
function buildRequestHeaders(apiKey) {
  const headers = {
    'Content-Type': 'application/json',
    'X-MOYASAR-LIB': 'moyasar-react-native-sdk',
    // TODO: Find a better solution for getting the version number to avoid hardcoding it. Importing the package.json file had its own issues after migrating the SDK's tooling and configuration.
    'X-REACT-NATIVE-SDK-VERSION': '0.9.0'
  };
  if (apiKey) {
    headers['Authorization'] = `Basic ${Buffer.from(apiKey).toString('base64')}`;
  }
  return headers;
}
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