paiementfactory/dist/gateways/EasebuzzGateway.js

Unified SDK for multiple payment gateways (Easebuzz, Razorpay, etc.)

"use strict";

const PaymentGateway = require('../interfaces/PaymentGateway');
const {
  URLSearchParams
} = require('url');
const {
  GATEWAYS,
  GATEWAY_STATUS
} = require('../utils/constants');
const sha512 = require('js-sha512');
const axios = require("axios");
class EasebuzzGateway extends PaymentGateway {
  constructor(config) {
    super();
    this.initialize(config);
  }
  initialize(config) {
    this.config = config;
  }
  async initiatePayment(data) {
    let pgResponse = {};

    // Payment Config
    const {
      EASEBUZZ_KEY,
      EASEBUZZ_SALT,
      EASEBUZZ_HOST
    } = this.config;

    // payload|data which user will send
    const {
      transactionID,
      amount,
      user,
      furl,
      surl,
      productinfo,
      udf1,
      udf2,
      udf3,
      udf4,
      udf5,
      udf6,
      udf7
    } = data;

    // parse amount in float (mandatory)
    const amount_in_float = parseFloat(amount);

    // extra data for encodedParams
    const address1 = data !== null && data !== void 0 && data.address1 ? data === null || data === void 0 ? void 0 : data.address1 : '';
    const address2 = data !== null && data !== void 0 && data.address2 ? data === null || data === void 0 ? void 0 : data.address2 : '';
    const city = data !== null && data !== void 0 && data.city ? data === null || data === void 0 ? void 0 : data.city : '';
    const state = data !== null && data !== void 0 && data.state ? data === null || data === void 0 ? void 0 : data.state : '';
    const country = data !== null && data !== void 0 && data.country ? data === null || data === void 0 ? void 0 : data.country : '';
    const zipcode = data !== null && data !== void 0 && data.zipcode ? data === null || data === void 0 ? void 0 : data.zipcode : '';
    const show_payment_mode = data !== null && data !== void 0 && data.show_payment_mode ? data === null || data === void 0 ? void 0 : data.show_payment_mode : '';
    const split_payments = data !== null && data !== void 0 && data.split_payments ? data === null || data === void 0 ? void 0 : data.split_payments : '';
    const request_flow = data !== null && data !== void 0 && data.request_flow ? data === null || data === void 0 ? void 0 : data.request_flow : '';
    const sub_merchant_id = data !== null && data !== void 0 && data.sub_merchant_id ? data === null || data === void 0 ? void 0 : data.sub_merchant_id : '';
    const payment_category = data !== null && data !== void 0 && data.payment_category ? data === null || data === void 0 ? void 0 : data.payment_category : '';
    const account_no = data !== null && data !== void 0 && data.account_no ? data === null || data === void 0 ? void 0 : data.account_no : '';
    const ifsc = data !== null && data !== void 0 && data.ifsc ? data === null || data === void 0 ? void 0 : data.ifsc : '';
    const unique_id = data !== null && data !== void 0 && data.unique_id ? data === null || data === void 0 ? void 0 : data.unique_id : '';

    // Hasing
    const hashArr = [EASEBUZZ_KEY, transactionID, amount_in_float, productinfo, user.name, user.email, udf1, udf2, udf3, udf4, udf5, udf6, udf7,,,, EASEBUZZ_SALT];
    const hashString = hashArr.join('|');
    const hash = sha512.sha512(hashString);
    const encodedParams = new URLSearchParams();
    encodedParams.set('key', EASEBUZZ_KEY);
    encodedParams.set('txnid', transactionID);
    encodedParams.set('amount', `${amount_in_float}`);
    encodedParams.set('productinfo', productinfo);
    encodedParams.set('firstname', user.name);
    encodedParams.set('phone', user.phone_number);
    encodedParams.set('email', user.email);
    encodedParams.set('furl', furl);
    encodedParams.set('surl', surl);
    encodedParams.set('hash', hash);
    if (address1) {
      encodedParams.set('address1', address1);
    }
    if (address2) {
      encodedParams.set('address2', address2);
    }
    if (city) {
      encodedParams.set('city', city);
    }
    if (state) {
      encodedParams.set('state', state);
    }
    if (country) {
      encodedParams.set('country', country);
    }
    if (zipcode) {
      encodedParams.set('zipcode', zipcode);
    }
    if (show_payment_mode) {
      encodedParams.set('show_payment_mode', show_payment_mode);
    }
    if (split_payments) {
      encodedParams.set('split_payments', split_payments);
    }
    if (request_flow) {
      encodedParams.set('request_flow', request_flow);
    }
    if (sub_merchant_id) {
      encodedParams.set('sub_merchant_id', sub_merchant_id);
    }
    if (payment_category) {
      encodedParams.set('payment_category', payment_category);
    }
    if (account_no) {
      encodedParams.set('account_no', account_no);
    }
    if (ifsc) {
      encodedParams.set('ifsc', ifsc);
    }
    if (unique_id) {
      encodedParams.set('unique_id', unique_id);
    }

    // request option
    const options = {
      method: 'POST',
      url: `${EASEBUZZ_HOST}/payment/initiateLink`,
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
        Accept: 'application/json'
      },
      data: encodedParams
    };
    const response = await axios.request(options);
    if (response.data.status === 1) {
      const access_key = response.data.data;

      // init pay route
      pgResponse = {
        success: true,
        gateway: GATEWAYS.EASEBUZZ,
        code: GATEWAY_STATUS.PAYMENT_INITIATED,
        data: {
          instrumentResponse: {
            redirectInfo: {
              url: `${EASEBUZZ_HOST}/pay/${access_key}`
            }
          }
        },
        err_msg: null
      };
    } else {
      var _response$data, _response$data2;
      pgResponse = {
        success: false,
        gateway: GATEWAYS.EASEBUZZ,
        code: GATEWAY_STATUS.PAYMENT_INITIATE_FAILED,
        error_desc: response === null || response === void 0 || (_response$data = response.data) === null || _response$data === void 0 ? void 0 : _response$data.error_desc,
        error_msg: response === null || response === void 0 || (_response$data2 = response.data) === null || _response$data2 === void 0 ? void 0 : _response$data2.data,
        data: null
      };
    }
    return pgResponse;
  }
  async checkPaymentStatus(data) {
    try {
      const {
        EASEBUZZ_KEY,
        EASEBUZZ_SALT,
        EASEBUZZ_HOST_DASHBOARD
      } = this.config;
      const {
        transactionID
      } = data;
      let checkPaymentResponse = {};

      // Hash sequence: key|txnid|salt
      const hashArr = [EASEBUZZ_KEY, transactionID, EASEBUZZ_SALT];
      const hashString = hashArr.join("|");
      const hash = sha512.sha512(hashString);
      const encodedParams = new URLSearchParams();
      encodedParams.set('txnid', transactionID);
      encodedParams.set('key', EASEBUZZ_KEY);
      encodedParams.set('hash', hash);
      const options = {
        method: 'POST',
        url: `${EASEBUZZ_HOST_DASHBOARD}/transaction/v2.1/retrieve`,
        headers: {
          'Content-Type': 'application/x-www-form-urlencoded',
          Accept: 'application/json'
        },
        data: encodedParams
      };
      const response = await axios.request(options);
      if (response.data.status) {
        var _response$data3;
        checkPaymentResponse = {
          success: true,
          gateway: GATEWAYS.EASEBUZZ,
          code: GATEWAY_STATUS.STATUS_FETCHED,
          data: response === null || response === void 0 || (_response$data3 = response.data) === null || _response$data3 === void 0 ? void 0 : _response$data3.msg[0]
        };
      } else {
        var _response$data4;
        checkPaymentResponse = {
          success: false,
          gateway: GATEWAYS.EASEBUZZ,
          code: GATEWAY_STATUS.STATUS_FETCH_FAILED,
          error_desc: response === null || response === void 0 || (_response$data4 = response.data) === null || _response$data4 === void 0 ? void 0 : _response$data4.msg,
          error_msg: 'Error',
          data: null
        };
      }
      return checkPaymentResponse;
    } catch (error) {
      return {
        success: false,
        gateway: GATEWAYS.EASEBUZZ,
        code: GATEWAY_STATUS.STATUS_FETCH_FAILED,
        error_desc: error.message,
        error_msg: 'Error',
        data: null
      };
    }
  }
  validateSignature(response) {
    var _Object$keys;
    if (response && ((_Object$keys = Object.keys(response)) === null || _Object$keys === void 0 ? void 0 : _Object$keys.length) == 0) {
      return false;
    }
    const {
      EASEBUZZ_SALT,
      EASEBUZZ_KEY
    } = this.config;
    const hashArr = [EASEBUZZ_SALT, response.status, response.udf10, response.udf9, response.udf8, response.udf7, response.udf6, response.udf5, response.udf4, response.udf3, response.udf2, response.udf1, response.email, response.firstname, response.productinfo, response.amount, response.txnid, EASEBUZZ_KEY];
    const hashString = hashArr.join("|");
    let hash_key = sha512.sha512(hashString);
    return hash_key === response.hash;
  }
}
module.exports = EasebuzzGateway;