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Adyen Integration Guide
Connect Adyen payments, webhooks, reports, refunds, disputes, and payouts with enterprise applications through secure APIs and orchestrated workflows.
Adyen integration options at a glance
Adyen’s primary integration surface is its REST API family, covering payments, payment methods, payment links, modifications, disputes, platforms, management, and reporting-related operations. Adyen also provides webhook-style notifications for selected payment, refund, dispute, recurring, platform, and transfer events. Some operations support asynchronous processing, while reporting APIs and downloadable reports support settlement and reconciliation workflows. Authentication may use API keys, client keys, HMAC webhook signatures, or OAuth for supported scenarios. Martini can consume these APIs, expose secured endpoints for notifications, validate and transform JSON, retrieve reports, schedule reconciliation, and route results to enterprise applications or databases.
Common Adyen integration patterns
Common Adyen data objects used in integrations
Authentication and security considerations
Credential isolation
Adyen API keys, HMAC keys, OAuth client secrets, and related configuration should be stored in Martini secrets or protected environment configuration rather than embedded in workflows or source code. Separate test and live credentials should be maintained.
Least privilege
Adyen access is controlled through API credential roles, account permissions, and, where applicable, OAuth scopes. Grant only the permissions required for the relevant payment, reporting, platform, dispute, or payout workflows.
Webhook verification
Inbound Adyen notifications should be verified with HMAC before they are accepted. Martini can expose the receiving API, validate the signature, reject invalid requests, and route verified events into workflows.
Sensitive payment data
Workflows should minimize payment data movement and avoid logging full payment details or credentials. Where appropriate, use Adyen-hosted or tokenized payment approaches and pass only the data required by each target system.
Operational considerations for Adyen integrations
Rate limits and transient failures
Adyen limits vary by API and account configuration. Handle HTTP 429 responses, temporary 5xx responses, network failures, and maintenance periods with bounded retries and backoff.
Idempotency and duplicates
Payment, capture, refund, and modification operations should use Adyen idempotency support where available and an internal business key. Webhook duplicates should be expected and suppressed before applying state changes.
Pagination and checkpoints
API and reporting pagination, date filters, cursors, and report periods are endpoint-specific. Store the last successful checkpoint and use an overlap window to recover missed or delayed data.
Ordering and state modeling
Notifications may arrive after an API response or out of expected order. Use current Adyen state, available timestamps, payment references, and modification references. Model authorization, capture, refund, cancellation, chargeback, dispute, and payout states separately.
Versioning and testing
Adyen has multiple product-specific API contracts and versions. Pin versions where applicable, tolerate optional fields, avoid undocumented properties, and test workflows against separate test and live configurations before deployment.
Reconciliation
Webhook processing should not be the only financial control. Periodically reconcile Adyen reports or API data with orders, invoices, refunds, fees, currencies, settlements, and payouts.
Why use Martini instead of scripts or point-to-point integrations?
Centralized orchestration
Martini coordinates Adyen API calls, inbound notifications, reporting, downstream updates, and recovery logic in workflows rather than scattering behavior across scripts or point-to-point interfaces.
Reusable contracts
Martini can expose stable internal APIs that shield applications from Adyen product-specific endpoints, credentials, and payload structures while preserving controlled access to payment capabilities.
Consistent transformation
Mappings and reusable workflow logic provide a consistent way to normalize payment, refund, dispute, payout, and report data for commerce, finance, CRM, analytics, and service-management systems.
Operational control
Validation, idempotency, retries, checkpointing, conditional routing, and monitoring can be applied consistently across real-time webhook flows and scheduled reconciliation processes.
Maintainable integration assets
Martini keeps authentication, business rules, transformations, and error handling in managed integration assets that can evolve as Adyen API products, versions, and enterprise requirements change.