0xPolygonID/issuer-node
Nov 2024 – Jun 2025
4 Months active
Languages Used
GoSolidityYAMLSQLDockerfile
Technical Skills
API DesignAPI DevelopmentBackend DevelopmentBlockchain DevelopmentEthereumGo Development
vbasiuk
PROFILE
Vbasiuk
Worked on the 0xPolygonID/issuer-node repository to deliver end-to-end payment workflows and multi-network payment gateway support. Developed and integrated a Payment Service API with recipient-aware verification, leveraging Go and Solidity for smart contract interaction and verification logic. Enhanced the payment lifecycle by implementing robust EIP-712 signing, multi-token aggregation, and advanced search capabilities using UUID-based schema identifiers. Improved reliability through targeted bug fixes, type-safe Ethereum client management, and comprehensive error handling. Enabled seamless deployment by configuring payment_settings.yaml for multiple networks and ensuring Docker readiness. Demonstrated skills in API development, blockchain integration, configuration management, and database query optimization throughout the project.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
22Total
Bugs
5
Commits
22
Features
5
Lines of code
5,178
Activity Months4
Your Network
9 peopleShared Repositories
9
Work History
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 highlights for 0xPolygonID/issuer-node: delivered multi-network payment gateway configuration and Docker deployment readiness. Implemented a comprehensive payment_settings.yaml covering Ethereum Mainnet, Polygon Mainnet, Polygon zkEVM, Linea, and testnets (Privado, Linea sepolia, Sepolia, Amoy), enabling seamless multi-network payments. Ensured payment_settings.yaml is included in the Docker build context to provide runtime configuration inside images. Relevant commits anchor the work: d60649c5c07be96d628c6510b6838816583cfe70 (update payment_settings.yaml with full configuration) and 49a3ee140ac865fefcf546c8f908319df35cd27b (include payment_settings to base).
2 Commits • 1 Features
Jun 1, 2025June 2025 highlights for 0xPolygonID/issuer-node: delivered multi-network payment gateway configuration and Docker deployment readiness. Implemented a comprehensive payment_settings.yaml covering Ethereum Mainnet, Polygon Mainnet, Polygon zkEVM, Linea, and testnets (Privado, Linea sepolia, Sepolia, Amoy), enabling seamless multi-network payments. Ensured payment_settings.yaml is included in the Docker build context to provide runtime configuration inside images. Relevant commits anchor the work: d60649c5c07be96d628c6510b6838816583cfe70 (update payment_settings.yaml with full configuration) and 49a3ee140ac865fefcf546c8f908319df35cd27b (include payment_settings to base).
June 2025
March 2025
6 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for 0xPolygonID/issuer-node: Delivered a refreshed payment search experience and important bug fixes that drive reliability and business value. Implemented an advanced search for payment requests with a UUID-based schema_id, extended API/server/repo to support UUID queries, and added comprehensive unit tests. Persisted schema_id as UUID in the payment_requests table and enabled direct search by UUID, improving data integrity and retrievability for audits. Fixed duplicate payment option detection by using the option's ID for comparison, eliminating misconfigurations and deployment risk. Technologies demonstrated include PostgreSQL UUID handling, API/backend refactoring, test-driven development, and robust query handling, contributing to faster, more accurate payment workflows.
March 2025
6 Commits • 1 Features
Mar 1, 2025March 2025 monthly summary for 0xPolygonID/issuer-node: Delivered a refreshed payment search experience and important bug fixes that drive reliability and business value. Implemented an advanced search for payment requests with a UUID-based schema_id, extended API/server/repo to support UUID queries, and added comprehensive unit tests. Persisted schema_id as UUID in the payment_requests table and enabled direct search by UUID, improving data integrity and retrievability for audits. Fixed duplicate payment option detection by using the option's ID for comparison, eliminating misconfigurations and deployment risk. Technologies demonstrated include PostgreSQL UUID handling, API/backend refactoring, test-driven development, and robust query handling, contributing to faster, more accurate payment workflows.
December 2024
11 Commits • 2 Features
Dec 1, 20242024-12 Monthly Summary for 0xPolygonID/issuer-node: The month delivered measurable improvements to the payment lifecycle, API coverage, and cross-network reliability. Focused execution on the signing pipeline, payment requests management, and code quality enabled stronger business value and developer velocity.
11 Commits • 2 Features
Dec 1, 20242024-12 Monthly Summary for 0xPolygonID/issuer-node: The month delivered measurable improvements to the payment lifecycle, API coverage, and cross-network reliability. Focused execution on the signing pipeline, payment requests management, and code quality enabled stronger business value and developer velocity.
December 2024
November 2024
3 Commits • 1 Features
Nov 1, 2024November 2024 – 0xPolygonID/issuer-node: Delivered core Payment Service API with recipient-aware verification and prepared on-chain verification readiness. Implemented endpoints for creating and verifying payment requests, integrated into the main server, and added recipient as a path parameter for recipient-scoped verification. Generated Go bindings for the Payment smart contract to enable verification logic within issuer-node. These changes establish end-to-end payment workflows and a foundation for scalable, verifiable payments.
November 2024
3 Commits • 1 Features
Nov 1, 2024November 2024 – 0xPolygonID/issuer-node: Delivered core Payment Service API with recipient-aware verification and prepared on-chain verification readiness. Implemented endpoints for creating and verifying payment requests, integrated into the main server, and added recipient as a path parameter for recipient-scoped verification. Generated Go bindings for the Payment smart contract to enable verification logic within issuer-node. These changes establish end-to-end payment workflows and a foundation for scalable, verifiable payments.
Activity
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Quality Metrics
Correctness89.2%
Maintainability87.2%
Architecture85.4%
Performance82.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
DockerfileGoSQLSolidityYAML
Technical Skills
API DesignAPI DevelopmentBackend DevelopmentBlockchainBlockchain DevelopmentConfiguration ManagementCryptographyData ModelingDatabase InteractionDatabase ManagementDatabase Query OptimizationDevOpsDockerError HandlingEthereum
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