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 core backend features for CQL-to-ELM conversion, API runtime demonstrations, and interoperability testing over five months. He applied C# and CQL to implement demo API scaffolding, extend query filtering, and improve enum parsing reliability, focusing on robust parameter handling and generic type support. Andreas strengthened code quality through targeted unit testing, addressed CI stability by isolating flaky tests, and maintained clear traceability with issue-linked commits. His work demonstrated depth in compiler development, domain-specific language integration, and FHIR data handling, resulting in a more reliable and maintainable SDK.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
12Total
Bugs
2
Commits
12
Features
5
Lines of code
998
Activity Months5
Your Network
30 peopleShared Repositories
11
Alexander ZautkeMember
Alexander ZautkeMember
Andrzej SkowrońskiMember
Paul den BoerMember
Devyani ChughMember
Erika BrickerMember
Erika BrickerMember
Ewout KramerMember
Ishan GajurelMember
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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