gatewise

All Gatewise payment gateway skills: PayHere, OnePay, WebXPay, Genie Business and Koko (Sri Lanka), a router that picks one, and shared payment-basics, payment-security-review, payment-testing and payment-refunds.

10 skills

Router: picks the right Sri Lankan gateway skill from the user's region, features and stack.

10 skills

Genie Business / Dialog Pay Business (Sri Lanka): hosted checkout, webhooks and signatures, card on file, MIT recurring, refunds, plugins.

10 skills

Koko (Sri Lanka BNPL): RSA-signed orderCreate, signed callback verification, Order View API, troubleshooting.

10 skills

OnePay (Sri Lanka): redirect checkout, JS SDK, payment links, card on file, refunds, payouts, plugins.

10 skills

PayHere (Sri Lanka): checkout, recurring, preapproval, refunds, SDKs, plugins, plans and troubleshooting.

10 skills

Gateway-agnostic payment rules: idempotency, callback verification, reconciliation, PCI scope and secrets.

10 skills

Refunds, partial refunds and chargebacks across the Sri Lankan gateways, plus a safe refund endpoint design.

10 skills

Evidence-based security review of payment integrations: forged callbacks, amount tampering, secret leaks, IDOR, refund abuse.

10 skills

Test plan for Sri Lankan gateways: sandbox hosts, published test cards, live-only gaps, scenario checklist.

10 skills

WebXPay (Sri Lanka): RSA-encrypted checkout, Token V2 saved cards and MIT, gateway IDs, plugins, error codes.

10 skills