FirelyTeam/firely-cql-sdk
Jan 2025 – Jun 2025
5 Months active
Languages Used
C#CQLCqlXML
Technical Skills
.NET DevelopmentAPI DevelopmentAPI IntegrationBackend DevelopmentC#Code Refactoring
Andreas Hussong
PROFILE
Andreas Hussong
Andreas Hussong contributed to the FirelyTeam/firely-cql-sdk repository by building and enhancing backend features for CQL API execution, focusing on robust demo project scaffolding and modernizing the codebase to .NET 8. He improved the CQL-to-ELM conversion pipeline, implemented code-based retrieval filtering, and strengthened enum parsing for FHIR interoperability. Using C#, CQL, and XML, Andreas addressed compiler reliability, expanded unit test coverage, and resolved packaging and CI stability issues. His work demonstrated depth in compiler development, API integration, and domain-specific language handling, resulting in a more reliable, maintainable SDK that supports advanced healthcare data workflows and cross-system validation.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
12Total
Bugs
2
Commits
12
Features
5
Lines of code
998
Activity Months5
Your Network
28 people
Work History
June 2025
1 Commits
Jun 1, 2025June 2025 (2025-06) for FirelyTeam/firely-cql-sdk focused on CI stability and code quality rather than new user-facing features. The primary action was to address a flaky test in CI by marking the FhirCodeableConcept_EquivalentTo_Code test as ignored, with a reference to GitHub issue #788 for future resolution. This change preserves sprint velocity and prevents deploy-blocking CI failures while the issue is investigated. Commit reference: 1f457192b3132432d08329c56a4f4b24efa4d75f.
1 Commits
Jun 1, 2025June 2025 (2025-06) for FirelyTeam/firely-cql-sdk focused on CI stability and code quality rather than new user-facing features. The primary action was to address a flaky test in CI by marking the FhirCodeableConcept_EquivalentTo_Code test as ignored, with a reference to GitHub issue #788 for future resolution. This change preserves sprint velocity and prevents deploy-blocking CI failures while the issue is investigated. Commit reference: 1f457192b3132432d08329c56a4f4b24efa4d75f.
June 2025
May 2025
2 Commits • 1 Features
May 1, 2025In May 2025, delivered targeted improvements to the Cql library by enhancing enum parsing reliability, expanding test coverage for FHIR enums, and enabling generic enum bindings (Code<EnumType>), with a focused fix in the compiler that eliminates parsing regressions and supports downstream enhancements.
May 2025
2 Commits • 1 Features
May 1, 2025In May 2025, delivered targeted improvements to the Cql library by enhancing enum parsing reliability, expanding test coverage for FHIR enums, and enabling generic enum bindings (Code<EnumType>), with a focused fix in the compiler that eliminates parsing regressions and supports downstream enhancements.
April 2025
4 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for FirelyTeam/firely-cql-sdk focused on strengthening interoperability testing, CQL-to-ELM conversion reliability, and code-based retrieval filtering. Key outcomes include robust tests for equivalence between FHIR CodeableConcept and CQL Code, support for string-based unit definitions in convert statements, and the introduction of code-based retrieval filtering with accompanying unit tests. These changes reduce integration risk, improve data consistency across cross-system workflows, and establish a more reliable testing foundation for the CQL SDK.
4 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary for FirelyTeam/firely-cql-sdk focused on strengthening interoperability testing, CQL-to-ELM conversion reliability, and code-based retrieval filtering. Key outcomes include robust tests for equivalence between FHIR CodeableConcept and CQL Code, support for string-based unit definitions in convert statements, and the introduction of code-based retrieval filtering with accompanying unit tests. These changes reduce integration risk, improve data consistency across cross-system workflows, and establish a more reliable testing foundation for the CQL SDK.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 summary for FirelyTeam/firely-cql-sdk: Delivered a key enhancement to CqlToElm filtering that strengthens query translation capabilities and paves the way for more expressive data retrieval.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 summary for FirelyTeam/firely-cql-sdk: Delivered a key enhancement to CqlToElm filtering that strengthens query translation capabilities and paves the way for more expressive data retrieval.
January 2025
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering a tangible demo API experience, stabilizing critical packaging logic, and modernizing the tech stack. The work enabled a repeatable demo of CQL API execution and laid groundwork for runtime demonstrations with robust parameter handling and modernization.
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering a tangible demo API experience, stabilizing critical packaging logic, and modernizing the tech stack. The work enabled a repeatable demo of CQL API execution and laid groundwork for runtime demonstrations with robust parameter handling and modernization.
January 2025
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Quality Metrics
Correctness86.6%
Maintainability86.6%
Architecture81.6%
Performance78.4%
AI Usage20.0%
Skills & Technologies
Programming Languages
C#CQLCqlXML
Technical Skills
.NET DevelopmentAPI DevelopmentAPI IntegrationBackend DevelopmentC#CQLCode GenerationCode RefactoringCompiler DevelopmentDemo Project SetupDependency InjectionDomain Specific LanguagesDomain-Specific Languages (DSLs)ELM ParsingEnum Handling
Repositories Contributed To
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