CODEWITHSUNDEEP
c#paypal
Ryan Langton
Ryan Langton

Reputation: 6160

Paypal C# Return Url

I have a C# MVC (using Umbraco) site that I need to submit a payment through paypal. I have setup a sandbox merchant and buyer account. I am able to submit the payment and everything is working well there. However, my site needs to know when the payment has completed successfully as I will send an email and do some database operations, and here is where I'm having the problem. I cannot get paypal to auto return to my site. I need the return URL to be: 

 http://localhost:56733/payment-confirmation

This is not a duplicate of this question: Setting PayPal return URL and making it auto return?

I am using C#, not PHP. Also, I am trying to run this locally. The solutions listed on the above question DO NOT WORK. The behavior and results are the same.

I do get the screen that shows the following:

You just completed your payment. XXXX, you just completed your payment. Your transaction ID for this payment is: XXXXXXXXXXXXX.

We'll send a confirmation email to [email protected]. This transaction will appear on your statement as PAYPAL.

Go to PayPal account overview

Upvotes: 0

Views: 1184

Answers (1)

Drew Angell
Drew Angell

Reputation: 26036

It is not recommended to handle post-payment processing on any return URL. Even with Auto-Return enabled there is no guarantee the user will make it there, and if they don't, that code will never run and you'll end up with tasks not getting completed like you expect.

Even if you're using Express Checkout API's so that you are guaranteed to end up on your own site, it's still not wise to handle all your data updates and email stuff there because the payment could be pending. You wouldn't want to deliver any product or anything like that until the pending payment cleared.

The way to handle all of that correctly is to use Instant Payment Notification (IPN). This will be triggered regardless of whether or not the user makes it back to the return URL, and you'll get multiple IPN's for transactions where the status updates so you can handle those automatically, in real-time as well.

Take a look at the documentation for IPN, but don't let it freak you out just because there's a lot of info there. It's really nothing more than a POST of data to a listener URL that you specify. In that script, you'll receive the data just like you would a form POST. It's really a pretty simple thing to setup, and you can do all sorts of cool things with it.

Upvotes: 1

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