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Joey Koster

PROFILE

Joey Koster

Joey Koster developed and maintained payment integration features for the commercetools/connect-payment-integration-adyen repository, focusing on expanding payment method support and improving system reliability. He implemented integrations for AfterPay, MobilePay, and other Adyen payment methods, enhancing checkout flexibility for e-commerce clients. Joey refactored backend TypeScript code to improve maintainability, stabilized test suites for more reliable CI, and resolved dependency issues to ensure smoother upgrades. His work included refining discount mapping logic, updating configuration management, and aligning documentation with Adyen conventions. By leveraging TypeScript, JavaScript, and YAML, Joey delivered robust, maintainable solutions that reduced integration risk and improved production readiness.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

35Total
Bugs
4
Commits
35
Features
8
Lines of code
5,282
Activity Months6

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

October 2025 Performance Summary for commercetools/connect-payment-integration-adyen - Delivered Esbuild Version Autoresolution by removing the explicit esbuild version override in package.json, enabling automatic resolution to the latest compatible versions and reducing dependency conflicts. - Focused on maintainability and upgrade readiness with a small, low-risk change that simplifies future upgrades and CI stability.

June 2025

14 Commits • 3 Features

Jun 1, 2025

June 2025 monthly summary for commercetools/connect-payment-integration-adyen: Focused on delivering a robust Adyen integration with a redirect-based AfterPay flow, improved discount mapping, and a more reliable test structure. These efforts improved checkout reliability, reduced regression risk, and enhanced maintainability, positioning the team for faster future releases.

May 2025

6 Commits • 1 Features

May 1, 2025

May 2025 monthly summary for commercetools/connect-payment-integration-adyen. Key feature delivered: AfterPay integration across enabler, UI, and Adyen processor; added AfterPay component and builder; extended mappings and line-item requirements. Groundwork cleanup and task clarifications for AfterPay integration in Adyen processor, removing stale comments and documenting future work. Result: expanded payment options, clearer integration guidelines, and better maintainability, positioning the project for smoother production rollout.

March 2025

8 Commits • 2 Features

Mar 1, 2025

March 2025 monthly summary for commercetools/connect-payment-integration-adyen. This period focused on expanding payment capabilities with MobilePay across the Adyen enabler and additional methods, strengthening local development stability, and improving documentation and consistency with Adyen conventions. Key outcomes include a broader payment method set, stabilized development environments, and clearer webhook/event semantics that support faster maintenance and integration work.

November 2024

1 Commits

Nov 1, 2024

November 2024: Stability focus for commercetools/connect-payment-integration-adyen. No new customer-facing features delivered this month; primary effort targeted at removing stability risks in the processor. Major bugs fixed: - Dependency compatibility issue resolved by downgrading typebox to 0.33.x to ensure reliable processing (commit a2f26acc071f5dfafe102579045ec0ede5aac1e9).

October 2024

5 Commits • 1 Features

Oct 1, 2024

October 2024 monthly summary for commercetools/connect-payment-integration-template focused on refactoring the mock payment service and stabilizing test behavior to improve reliability of the payment flow and readiness for PSP integration. The work delivered a cleaner architecture for payment creation and transaction association, corrected IDs mapping from cart, removed unnecessary payload fields, renamed variables for clarity, and introduced a PSP reference for end-to-end traceability. These changes improve maintainability, observability, and set the groundwork for PSP onboarding and production readiness.

Activity

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Quality Metrics

Correctness90.6%
Maintainability90.8%
Architecture87.4%
Performance83.4%
AI Usage22.2%

Skills & Technologies

Programming Languages

JSONJavaScriptMarkdownTypeScriptYAMLyaml

Technical Skills

API IntegrationAdyenBackend DevelopmentCode CleanupCode MaintenanceCode OrganizationConfigurationConfiguration ManagementData TransformationDependency ManagementDevOpsDocumentationE-commerceFront-end DevelopmentFull Stack Development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

commercetools/connect-payment-integration-adyen

Nov 2024 Oct 2025
5 Months active

Languages Used

TypeScriptJavaScriptMarkdownYAMLyamlJSON

Technical Skills

Backend DevelopmentDependency ManagementAPI IntegrationAdyenConfigurationConfiguration Management

commercetools/connect-payment-integration-template

Oct 2024 Oct 2024
1 Month active

Languages Used

TypeScript

Technical Skills

API IntegrationBackend DevelopmentRefactoringTesting

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