Node AamarPay

Node JS and Express JS module for using AamarPay payment gateway in Bangladesh.

Features

• Easy setup and easy to use API
• Uses promises, so supports async await syntax
• Token generation and verification methods included

Installation

npm install aamarpay

Usage

const PAY = require('aamarpay');

// A string of good length. Should be stored securely.
const KEY = "OHZTDSRCU75APMKGYBHA0IL1GQDPXZHAGCAUAWOR9EXHVND9AAMEVEMAEZXIYLTR";

let ip = '20.20.20.20',
	domain = 'domain.com',
	storeId = 'storeid',
	signatureKey = 'abcdefgh',
	hashKey = KEY;

PAY.init({ ip, domain, storeId, signatureKey, hashKey });

let seed = 'ABCD' // can not be empty
let token = PAY.token(seed)
console.log('TOKEN: ', token);
console.log('VERIFY: ', PAY.verify(seed, token));

PAY.post({
	tran_id: '',
	success_url: '',
	fail_url: '',
	cancel_url: '',
	ipn_url: '',
	// opt_a: '',// optional
	// opt_b: '',// optional
	// opt_c: '',// optional
	// opt_d: '',// optional
	amount: '10',
	// payment_type: '',// optional
	currency: 'BDT',
	desc: '',
	cus_name: '',
	cus_email: '',
	cus_add1: '',
	// cus_add2: '',// optional
	cus_city: '',
	cus_state: '',
	cus_postcode: '',
	cus_country: '',
	cus_phone: '',
	// all ship_* are optional
	// ship_name: '',
	// ship_add1: '',
	// ship_add2: '',
	// ship_city: '',
	// ship_state: '',
	// ship_postcode: '',
	// ship_country: '',
})
	.then(({ statusCode, data, headers, track, url }) => {
		console.log('RES: ', data);
	})
	.catch(({ statusCode, data, headers }) => {
		console.log('ERR: ', statusCode, data, headers);
	});

API

init({ip, domain, storeId, signatureKey, hashKey})

It sets up the module for use, takes an object with 5 keys -

• ip the registered IP address for AamarPay
• domain the registered domain name for AamarPay
• storeId the store ID provided by AamarPay upon sign up
• signatureKey the signature key provided by AamarPay upon sign up
• hashKey a randomized string to generate and verify tokens. It should be of good length. It also should be stored securely.

post(data):Promise

It is a method that makes the payment processing request with data using curl and returns a promise. See example above and AamarPay documentation.

The promise resolves with an object with following properties -

• statusCode response status code
• data raw data returned from AamarPay
• headers response headers
• track tracking id of the requested invoice
• url payment url

The promise rejects with an object with following properties -

• statusCode response status code
• data raw data returned from AamarPay
• headers response headers

token(seed):String

It creates a hashed token that can be verified later. seed must be unique like a payment ID or order ID. this uses hashKey to generate token.

verify(seed,token):Boolean

It verifies a token for provided seed using hashKey.

License

The MIT License (MIT)

Copyright (c) 2020 Md. Naeemur Rahman (https://naeemur.github.io)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.