paytm-nodejs
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Nodejs wrapper for Paytm Payment Gateway
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# paytm-nodejs
A Nodejs wrapper for Paytm Payment Gateway Integration
## Installation
```bash
$ npm install paytm-nodejs --save
```
## Usage
### For Creating Paytm Payment
```js
const paytm = require('paytm-nodejs')
const config = {
MID : '###############', // Get this from Paytm console
KEY : '###############', // Get this from Paytm console
ENV : 'dev', // 'dev' for development, 'prod' for production
CHANNEL_ID : 'WAP',
INDUSTRY : 'Retail',
WEBSITE : 'Default',
CALLBACK_URL : 'localhost:8080/paytm/webhook', // webhook url for verifying payment
}
// your create payment controller function
exports.pay = function(req,res){
let data = {
TXN_AMOUNT : req.body.amount, // request amount
ORDER_ID : 'ORDER_123456', // any unique order id
CUST_ID : 'CUST_123456' // any unique customer id
}
// create Paytm Payment
paytm.createPayment(config,data,function(err,data){
if(err){
// handle err
}
//success will return
/*{
MID: '###################',
WEBSITE: 'DEFAULT',
CHANNEL_ID: 'WAP',
ORDER_ID: '#########',
CUST_ID: '#########',
TXN_AMOUNT: '##',
CALLBACK_URL: 'localhost:8080/paytm/webhook',
INDUSTRY_TYPE_ID: 'Retail',
url: 'https://securegw-stage.paytm.in/order/process',
checksum: '####################################'
}*/
//store the url and checksum
let url = data.url;
let checksum = data.checksum;
// delete it from data object
delete data.url;
delete data.checksum;
/* Prepare HTML Form and Submit to Paytm */
res.writeHead(200, {'Content-Type': 'text/html'});
res.write('<html>');
res.write('<head>');
res.write('<title>Merchant Checkout Page</title>');
res.write('</head>');
res.write('<body>');
res.write('<center><h1>Please do not refresh this page...</h1></center>');
res.write('<form method="post" action="' + url + '" name="paytm_form">');
for(var x in data){
res.write('<input type="hidden" name="' + x + '" value="' + data[x] + '">');
}
res.write('<input type="hidden" name="CHECKSUMHASH" value="' + checksum + '">');
res.write('</form>');
res.write('<script type="text/javascript">');
res.write('document.paytm_form.submit();');
res.write('</script>');
res.write('</body>');
res.write('</html>');
res.end();
});
}
```
### For Validating Paytm Payment
```js
const paytm = require('paytm-nodejs')
const config = {
MID : '###############', // Get this from Paytm console
KEY : '###############', // Get this from Paytm console
ENV : 'dev', // 'dev' for development, 'prod' for production
CHANNEL_ID : 'WAP',
INDUSTRY : 'Retail',
WEBSITE : 'Default',
CALLBACK_URL : 'localhost:8080/paytm/webhook', // webhook url for verifying payment
}
// Webhook controller function
exports.webhook = function(req,res){
paytm.validate(config,req.body,function(err,data){
if(err){
// handle err
}
if(data.status == 'verified'){
// mark payment done in your db
}
})
}
```
### For Getting Order Status
```js
const paytm = require('paytm-nodejs')
const config = {
MID : '###############', // Get this from Paytm console
KEY : '###############', // Get this from Paytm console
ENV : 'dev', // 'dev' for development, 'prod' for production
CHANNEL_ID : 'WAP',
INDUSTRY : 'Retail',
WEBSITE : 'Default',
CALLBACK_URL : 'localhost:8080/paytm/webhook', // webhook url for verifying payment
}
paytm.status(config,'your_order_id',function(err,data){
if(err){
// handle err
}
// data will contain order details
})
```