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Integrate payment gateway and subscriptions into your web service

239 views#4576
Listing period18 daysuntil 23.12.2026
Posted24.09.2026
Views23915 in 14 days

About the service

I integrate payments and subscriptions into web services so that money actually reaches your account and every charge is reflected correctly in your own database. I connect the payment gateway you prefer, set up card acceptance for one-time purchases and recurring subscription billing, and make sure renewals happen automatically without a customer re-entering their details. The result is a flow a user can trust: they pay, they get access, and their status updates the moment the payment succeeds.

The part that breaks most often is what happens after payment, so I pay special attention to webhooks. I handle the provider callbacks properly, verify their signatures, make the processing idempotent so a repeated notification never charges twice or grants access twice, and record every event for later reconciliation. I wire up subscription lifecycle handling too: successful renewal, failed payment with retries, cancellation and expiry, each changing the account state predictably. Where fiscal receipts are required, I connect receipt generation so the customer gets a proper document and you stay compliant.

I work inside your existing codebase and follow its conventions rather than bolting on a separate module. I test with the provider sandbox across success, decline, refund and repeated-webhook cases before anything touches live keys, and I never leave secret keys in the repository. Tell me your stack and which gateway you use, and I will lay out the integration steps and a timeline.

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Payora SafeDeal Astrina Shield Verified

Funds are locked in Payora USDT (TRC-20) escrow and released to the freelancer only after delivery approval.

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Natalia M.Web programming
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