Im haing a problem iv been researching for weeks now on the paypal API but i just can't figer how to do this.
I need there to be a button on my website which then it goes to paypal.
Once you have paid the chosen amount it goes to a php page which updates the database though php.
You have to turn on paypal ipn in your paypal preferences. Once paypal has the money it sends you a transaction back to your server. In the script that accepts the transaction you can have it update your tables.
Documentation : https://www.x.com/sites/default/files/ipnguide.pdf
generally you pass a notify_url parameter with the request, and set up a page which handles and validates IPN notifications, and PayPal will send requests to that page to notify you when payments/refunds/etc. go through. That IPN handler page would then be the correct place to update the database to mark orders as having been paid.
i found a tutorial here: http://net.tutsplus.com/tutorials/php/using-paypals-instant-payment-notification-with-php/
I found more suitable the PayPal NVP API instead of tradional IPN (Instant Payment Method)
You can find several code examples for PHP (including very similar to your problem and more advanced) in the library code for NVP samples
Related
I am trying to integrate the PayPal REST API into my Symfony 2 web app but I find hard to understand how exactly the complete workflow looks like:
The PayPal docs describe the following steps to accept a payment. One can use the PayPal Playground to simulate these steps:
Get an access token
Create a Payment object by querying the API
Redirect the user to the approval url received in the Payment response
After the user approved the payment on the PayPal page, he is redirected back to my page, using the success-link defined in the Payment object. Use the received information to execute the payment.
Payment is completed with status approved
From the docs: Once a payment is complete, it is referred to as a
sale. You can then look up the sale and refund it.
So far so good. BUT: Where are Webhooks used/fired in this workflow? I have defined a wildcard Webhook (accepting all possible events) in the PayPal Developer Dashboard.
My observation is, that my system receives the Webhook event 1-2 Minutes (!) after the user was redirected back to the success-link and after the payment was executed (Step 4).
Beside this long delay between executing the payment and receiving the Webhook, this workflow means, that I only receive the Webhook AFTER handling the success-link. This means, handling the success-link is absolutly necessary for the payment to be completed. Is this correct?
Do I need to use Webhooks?
I already asked this question a few days before and the answer by nifr is quite reasonable: One cannot trust the user to follow any redirect URL but should only rely on the Webhook events.
However this collides with the observations I described before, since I will never receive the Webhook without handling the redirect URL...
So, handling the PAYMENT.SALE.COMPLETED webhook event does not make a lot of sense, since this should already be done in when handling the redirect URL. Correct?
However, to handle updates on pending payments, handle refunds or reversed payments, etc. are only possible by listening on those events.
So the answer is: Only use Webhooks to get updates on payments made before. Correct?
So, the main questions are:
The 5-step process to accept payments does not say anything about using Webhooks. This does not seem to make a lot of sense, because without Webhooks one would miss update events, etc.? So, is it really possible to implement the complete payment workflow without Webhooks?
If yes, how are updates (refunds, pending, etc) handled in this case?
If no, what is the right strategy/time to fulfill the order since it take quite a long time to completly receive and handle the webhook?
i am still a newbie in PayPal world, but few days ago i integrated PayPal Plus REST API in an online Shop, and from my understanding i can tell that the workflow looks like:
create a Payment
redirect to PayPal
Payer could pay using PayPal account OR (using Bank Direct debit or Credit Card Payment without PayPal Account)
After completing the process on PayPal side, PayPal redirect the user back to your success URL.
till now the user is still not charged(you got no money). At the moment where you (in your success URL) do $payment->execute($paymentExecution,$api); , you ask Paypal to charge the amount from user. BUT also after this, you got no Money. Paypal have first to process the charging and notify you later via WebhookEvents.
the Webhook Notification (with that nasty delay) is especially important when the user pays per direct debit or Credit Card etc. Processing such Payments takes few seconds/minutes.
the redirectUrl ist absolutly necessary for charging/executing the Payment.
here on execution succeed, just to tell the user, that he finished his Job, and you can here save/capture the PaymentID/Transaction id for later usage/update via WebhookEvent Listener.
so i would recommend you to update your Database(Payment completed) only after receiving notofications via WebhookEvent Listener and not in the success RedirectUrl.
I am running a e-commerce website and I want to integrate PayPal. I need to know immediately whether a user paid successfully or not after they paid via their credit cards. Is there a chance i can do that with PayPal?
I've heard PayPal has a service called IPN, which can post to my server and tell me the transaction's status. But lots of people are complaining that there are huge delays with IPN's PHP API.
Just finished an IPN integration a few hours ago :).
IPN stands for INSTANT payment notifications. In most times it just works(hi Apply fans!).
You add a form with variables such as currency and return URL and with a special page that you expect Paypal to send transaction information when the payment is made. Receiving a notification does not mean funds are sent to your account but the transaction has completed. (possible reasons to not get funds to your account include problems with card provider, incomplete accounts, etc)
You will face some questions regarding specific problems. But I would suggest checking paypal site and it's API docs. They are pretty straight forward and with a little understanding in your programming language and how HTTP works, you can implement it.
I have seen some posts about PayPal IPN system is slow. I have not seen it myself but in most cases, I'm sure you will get paypal API calls just before the user come back to your site.
I've had great success with nSoftware's PayPal plugins.
I am new to sandbox and paypal payment gateway. I am using paypal adaptive payment to pay amount to two people at a time. My current code works perfectly. I am using the paypal generated code. I just want to know that is it possible that when the payment is made successfully can I make that entry to my database. I have my php code, but where do I need to write this?
Thanks in advance(plzz no down votes)
You should wait for the IPN message that contain details about the payment status
https://www.paypal.com/ipn
You need to define the url of the php script that listen for those messages in your paypal account. There are some php examples on how to implement it.
I'm looking to implement a very simple Paypal integration whereby I can enter a valid Paypal Email address (recipient) and a dollar amount, and click "Pay." Ideally, it would send the money from my paypal account automatically via my API key.
I currently have Mass Pay set up with PHP, and it's working fine, except that it charges me 2% on every payment, and doesn't pass back the Transaction ID. It also kinda seems unnecessary since I don't need to pay multiple people at once.
Since I only need to do one transaction at a time, I'm wondering if anyone knows of a simpler Paypal API for single outgoing transactions from my account.
I've been reading the documentation all day and I've yet to find what I'm looking for.
Any advice is greatly appreciated!
PayPal has sample codes for integrating various PayPal features on it's website. This includes PHP take a look at the list of features and I'm sure what you are looking for is there.
Also from the paypal site:
PayPal receives the MassPay request and returns a response indicating
success or failure. If PayPal returns a successful response, then
PayPal processes the payments and, if you have Instant Payment
Notifications (IPN) enabled, PayPal sends a notification to the Notify
URL specified in your account profile. If you do not have IPN enabled,
you can view the details of the MassPay transaction in your PayPal
account.
This implies that in the case of mass pay you need to provide a URL where paypal sends payment notifications. Your program can probably check this url to figure out whether a payment has been made or not, I would suspect this would be the case for all payment integration. That being said I would print_r the the response from paypal, I'm sure something like a transaction id will probably be in there. In the case of DoAuthorization it does return the transaction id
In the case of mass pay it does return the transaction id if IPN is enabled
I'm looking for a way to build a web application using paypal payments standard. I'd like the user to get redirected to paypal, then fill out their information, and upon completion, add a value in our database saying that they successfully paid. I haven't found a solution or answer to this.
I found this thread for RoR, but didn't find anything for PHP
Paypal Website Payments Standard with a Ruby/Rails application
You can see instructions for a Payment Data Transfer at PayPal's site. Basically, you post the transaction amount and an ID token to their site, the customer pays on paypal.com, and then they're sent back to a pre-defined URL on your site with the transaction details.
I used the NVP API to do that.