Hi Abdul,

Basically there are two way for Integration of payment gateway in any ROR Tech.. 1 - Using Basic Providers Url in the action of the form for with authorization details 2 - Using SOAP API services. (Depends on service providers supports)

First type :

• It basically need required params info which we need to send with user provided detail.
• All Basic params value will become RequestParameters for providers site
• At your side Form Action will be Url of the servicde provider..

Like

/form

Note:where www.url.com/success.html is your site's success url www.url.com/failure.html is your site's failure handler url

After this in the controller you just need to accept responseParams value..

Sample responseParams: For success transaction: 200904281000001|SUCCESS|IND|INR|NULL|111111|100.00| (Success Response) For fail transaction: 200904281000001|FAIL|IND|INR|NULL|111111|100.00| (Failure Response)

Thats it.. :)

Now second type :

Using Soap Servies API. - Need to create driver Object of Service at your side Using SOAP API - After you can access all method related to that service. (Details of all methods & format of request params you will get from the service providers) - After Methods of the SOAP service with provide details u'll get the result as response of the service.. Which is same as First type...

*To consume SOAP service u need to install gem/Use wsdl4r or soap4r

Usually I prefer first type

I hope this will help you..!

Good Luck .. Cheersssssss! [;)]

Check the active_merchant gem. Also, check Ryan Bate's screencasts episodes 141-146 on how to integrate active_merchant.