fix(router): [worldpayvantiv] dispute validations and statuses

[AkshayaFoiger]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

1. Allow Accept Liability/ Submit Evidence during pre-arbitration and when the dispute is in challenge state
2. Remove the list_dispute_supported_connectors flag from prod as vantiv's prod url for the same is unknow
3. Extensively handle the dispute status from vantiv

How did you test it?

Accept liability for a challenged dispute

curl --location --request POST 'http://localhost:8080/disputes/accept/dp_VqlX1fzaUZRUmnMhcruo' \
--header 'Accept: application/json' \
--header 'api-key: dev_nGgYoHlpzKHfrpHfI9hAX8BOctOASqkCX8RCMglZ5Ro5BhLGmczY0WjoD1udVuDh'

Response

{"dispute_id":"dp_uSGRmdV28ok7AG4CBgm4","payment_id":"12345","attempt_id":"12345_1","amount":"52000","currency":"USD","dispute_stage":"pre_arbitration","dispute_status":"dispute_challenged","connector":"worldpayvantiv","connector_status":"Pre-Arbitration","connector_dispute_id":"10193081007","connector_reason":"Collaboration Flow - Processing Error - Duplicate Processing","connector_reason_code":"12.6.1","challenge_required_by":"2026-07-10T00:00:00.000Z","connector_created_at":"2025-07-10T00:00:00.000Z","connector_updated_at":null,"created_at":"2025-08-06T18:17:47.052Z","profile_id":"pro_TBRJM4Wv6IWCco5U7SmU","merchant_connector_id":"mca_g7Vm6N4QDsht1Os6gZ7j"}

Do a Dsync

{"dispute_id":"dp_uSGRmdV28ok7AG4CBgm4","payment_id":"12345","attempt_id":"12345_1","amount":"52000","currency":"USD","dispute_stage":"pre_arbitration","dispute_status":"dispute_accepted","connector":"worldpayvantiv","connector_status":"Pre-Arbitration","connector_dispute_id":"10193081007","connector_reason":"Collaboration Flow - Processing Error - Duplicate Processing","connector_reason_code":"12.6.1","challenge_required_by":"2026-07-10T00:00:00.000Z","connector_created_at":"2025-07-10T00:00:00.000Z","connector_updated_at":null,"created_at":"2025-08-06T18:17:47.052Z","profile_id":"pro_TBRJM4Wv6IWCco5U7SmU","merchant_connector_id":"mca_g7Vm6N4QDsht1Os6gZ7j"}

Cannot create a successful submit evidence call because of the test case unavailablity

Try submitting evidence to a challenged dispute

{"dispute_id":"dp_uSGRmdV28ok7AG4CBgm4","payment_id":"12345","attempt_id":"12345_1","amount":"52000","currency":"USD","dispute_stage":"pre_arbitration","dispute_status":"dispute_challenged","connector":"worldpayvantiv","connector_status":"Pre-Arbitration","connector_dispute_id":"10193081007","connector_reason":"Collaboration Flow - Processing Error - Duplicate Processing","connector_reason_code":"12.6.1","challenge_required_by":"2026-07-10T00:00:00.000Z","connector_created_at":"2025-07-10T00:00:00.000Z","connector_updated_at":null,"created_at":"2025-08-06T18:17:47.052Z","profile_id":"pro_TBRJM4Wv6IWCco5U7SmU","merchant_connector_id":"mca_g7Vm6N4QDsht1Os6gZ7j"}

Response

{"dispute_id":"dp_uSGRmdV28ok7AG4CBgm4","payment_id":"12345","attempt_id":"12345_1","amount":"52000","currency":"USD","dispute_stage":"pre_arbitration","dispute_status":"dispute_challenged","connector":"worldpayvantiv","connector_status":"Pre-Arbitration","connector_dispute_id":"10193081007","connector_reason":"Collaboration Flow - Processing Error - Duplicate Processing","connector_reason_code":"12.6.1","challenge_required_by":"2026-07-10T00:00:00.000Z","connector_created_at":"2025-07-10T00:00:00.000Z","connector_updated_at":null,"created_at":"2025-08-06T18:17:47.052Z","profile_id":"pro_TBRJM4Wv6IWCco5U7SmU","merchant_connector_id":"mca_g7Vm6N4QDsht1Os6gZ7j"}

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

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Changed Files

File	Status
crates/router/src/core/disputes.rs	67% smaller
crates/router/src/core/utils.rs	38% smaller
crates/hyperswitch_connectors/src/connectors/worldpayvantiv/transformers.rs	35% smaller
config/deployments/production.toml	Unsupported file format