Create ReadMe.md

Seamless_Integration/ReadMe.md

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+## Seamlesss Integration with Node.js
+
+### Pre-Requisite
+1. Node Js installed(preferably latest version)
+2. Install package md5
+3. Install package request
+4. Install package express
+5. Install package body-pareser
+6. MOLPay Development or Production ID.
+7. MOLPay General API.
+
+For ease of use, a demo version has been uploaded along with a sample html file and all required node modules in a zip file.
+If there is any trouble in using the uploaded package modules, the packages can be easily installed on windows via npm install <packagename> 
+or you can just refer here https://www.npmjs.com/ .
+
+
+### Installation
+1. Download the app.js file
+2. Put app.js file in same directory with your project files.
+3. Open command prompt terminal,locate destination of app.js.
+4. Remember to change name inside app.js of 'index.html' to your own html page. (There is only 1 line with index.html)
+5. Run 'node app.js' to execute file.
+6. Open localhost based on given localhost server to access your web page.
+
+### Set Environment
+Set which type of enviroment to use with either sandbox or production
+```Javascript
+var enviroment = "sandbox" or "production"
+```
+For the html demo, set the environment using the following links.
+
+For sandbox:
+```html
+<script src="https://sandbox.molpay.com/MOLPay/API/seamless/latest/js/MOLPay_seamless.deco.js"></script>
+```
+
+For  production
+```html
+<script src="https://www.onlinepayment.com.my/MOLPay/API/seamless/3.17/js/MOLPay_seamless.deco.js">
+```
+
+### Usage
+Insert values into these parameters:
+```Javascript
+var merchant_id = "";//Insert merchant id here
+var orderid = ""; // Order ID should be random generated by merchant function
+var vkey = "**************"; //Replace ********** with your MOLPay verification_Key
+```
+Note: orderid should be defined by merchant function. Hardcoding method is used for convenience of testing
+
+Please request merchant ID and vkey from Merchant Technical Support / Customer Care : [email protected] . The order ID can be anything.