CODEWITHSUNDEEP
phpstripe-payments
Frog82
Frog82

Reputation: 464

Stripe - Web Hooks - Change Subscription Plan After Free Trial

I'm trying to do the following:

I understand that I will need to use web hooks for this and have created a test web hook to do this, which currently looks like this:

// Set your secret key: remember to change this to your live secret key in production
// See your keys here https://dashboard.stripe.com/account/apikeys
\Stripe\Stripe::setApiKey("sk_test_......");

// Retrieve the request's body and parse it as JSON
$input = @file_get_contents("php://input");
$event_json = json_decode($input);

// Do something with $event_json

http_response_code(200); // PHP 5.4 or greater

The event that I need to listen to is:

customer.subscription.trial_will_end

But how do I use this event in the web hook to get the customers ID and then add them to the plan whilst charging them at at the same time?

Kind Regards, Nic

Upvotes: 1

Views: 1073

Answers (1)

Ywain
Ywain

Reputation: 17523

Depending on what exactly you want to do, you might not need to use webhooks at all.

If you want to charge a $1 setup fee when a customer subscribes, then not charge them anything for 3 months, then start charging them $x / month (or any other interval), here's what you should do:

This will result in the following:

  • the customer will immediately be billed $1
  • if this payment fails, then the subscription will not be created
  • if it succeeds, the subscription will be created
  • 3 months later, the trial period will end and your customer will start getting billed according to the plan's parameters

To answer your initial question, the customer.subscription.trial_will_end event that is sent will include a subscription object in its data.object attribute. You can then use this subscription object to retrieve the customer ID by looking at the customer attribute.

The code would look something like this:

// Set your secret key: remember to change this to your live secret key in production
// See your keys here https://dashboard.stripe.com/account/apikeys
\Stripe\Stripe::setApiKey("sk_test_...");

// Retrieve the request's body and parse it as JSON
$input = @file_get_contents("php://input");
$event_json = json_decode($input);

// Verify the event by fetching it from Stripe
$event = \Stripe\Event::retrieve($event_json->id);

// Do something with $event
if ($event->type == "customer.subscription.trial_will_end") {
  $subscription = $event->data->object;
  $customer_id = $subscription->customer;
}

http_response_code(200); // PHP 5.4 or greater

Upvotes: 3

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