juspay/hyperswitch

[FEATURE] : [Adyen] Add Integrity check support for Capture, Refund and RSync flows

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#8149 opened on May 27, 2025

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 (3 comments) (0 reactions) (0 assignees)Rust (42,690 stars) (4,676 forks)batch import
C-featureS-awaiting-triagegood first issue

Description

Feature Description

Integrity check is a scenario where there is a discrepancy between the amount sent in the request and the amount received from the connector, which is checked during response handling.

Possible Implementation

Refer to relevant PRs for Stripe/Xendit and add the integrity checks in the Adyen connector and hardcode the amount values going to the connector to test the integrity check

Here is a Similar issue PR: https://github.com/juspay/hyperswitch/pull/8049

Have you spent some time checking if this feature request has been raised before?

  • I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

Are you willing to submit a PR?

None

Contributor guide

Tech stack
rust
Domain
backend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
basic Rust knowledgeunderstanding of payment integrity checks
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Review the referenced PR #8049 to understand the integrity check pattern implemented for Stripe/Xendit. Then identify the response handling code in the Adyen connector, likely in crates/router/src/connector/adyen/. Hardcode amount values to trigger discrepancies and verify the checks. Ensure the implementation follows the same approach as the reference.