DataDog/dd-sdk-ios
Mar 2026 – Jul 2026
3 Months active
Languages Used
Swift
Technical Skills
Data ModelingError HandlingGraphQLPerformance OptimizationSwiftTelemetry Implementation
Sara Susano
PROFILE
Sara Susano
Contributed to the DataDog/dd-sdk-ios repository by delivering eight features and resolving eighteen bugs over three months, focusing on telemetry, crash reporting, and data modeling for iOS. Enhanced RUM data models and GraphQL error tracing, modernized telemetry event handling, and improved UTF-16 string truncation to align with backend requirements. Refactored binary image collection for crash reporting, introducing thread-safe caching and centralized data transformation using Swift and system programming techniques. Removed client-side log attribute truncation to preserve data fidelity, while strengthening test reliability and code quality. Demonstrated expertise in Swift, telemetry integration, error handling, and SDK development within a collaborative workflow.
Overall Statistics
Feature vs Bugs
31%Features
Repository Contributions
36Total
Bugs
18
Commits
36
Features
8
Lines of code
332,518
Activity Months3
Your Network
1051 peopleWork History
July 2026
5 Commits • 2 Features
Jul 1, 2026July 2026 — Enhanced crash reporting reliability and data fidelity in dd-sdk-ios. Delivered a Binary Image Collection and Backtrace Reporting Enhancement, migrating binary image handling to an internal, thread-safe cache and centralizing KSBinaryImage to BinaryImage conversion for maintainability, with errors escalated to telemetry for improved observability. Reverted client-side log attribute truncation to preserve full data pass-through to the backend, eliminating data loss and reducing test brittleness. These changes collectively boost diagnostic accuracy, telemetry reliability, and data integrity while reducing maintenance overhead via refactoring and caching improvements. Technologies demonstrated include KSCrash integration, thread-safe caching, centralized data transformation, and telemetry-driven error handling.
5 Commits • 2 Features
Jul 1, 2026July 2026 — Enhanced crash reporting reliability and data fidelity in dd-sdk-ios. Delivered a Binary Image Collection and Backtrace Reporting Enhancement, migrating binary image handling to an internal, thread-safe cache and centralizing KSBinaryImage to BinaryImage conversion for maintainability, with errors escalated to telemetry for improved observability. Reverted client-side log attribute truncation to preserve full data pass-through to the backend, eliminating data loss and reducing test brittleness. These changes collectively boost diagnostic accuracy, telemetry reliability, and data integrity while reducing maintenance overhead via refactoring and caching improvements. Technologies demonstrated include KSCrash integration, thread-safe caching, centralized data transformation, and telemetry-driven error handling.
July 2026
April 2026
21 Commits • 3 Features
Apr 1, 2026April 2026 (2026-04) monthly summary for DataDog/dd-sdk-ios: Key features delivered: - GraphQL attribute extraction consolidation: merged extractGraphQLAttributes and buildGraphQL into extractGraphQL. This consolidates the GraphQL attribute path and reduces maintenance burden (commit 4175581059d7a2f278e9ac3adb86c7bd91e72f86, related to RUM-11993). - Telemetry usage modernization: replaced trackWebView() with a generic usage(event:sampleRate:). Improves telemetry flexibility and analytics quality (commit ebbae76cd997b8d7a48cc4dcc3b39483712a1ce44, RUM-10349). - UTF-16 truncation correctness and emoji coverage: aligned attribute value truncation with backend UTF-16 limits and added emoji truncation test coverage (commits 2a189a5cb16d360e33199c9581fd05b4040838f6, de014bc030413f0b283bba079c1ecc233e23425e, c490ba5c8e17ec5e74617d3f1fa8e2ac6f6c9675, RUM-744). - RUM stability and code quality improvements: addressed background session preconditions, lint violations, and review feedback to normalize flows and improve reliability (commits e8e81ab42a4b9f542e872b95cc01485e5e03905d, e8cfc1e20dcb2d9306cca77f54ddb4d7fe346de7, de6bb192e868fdf9950abeabcbb77d06bc0661bd, 2c7165c8384d2bd26f791c8304f30168aa615111, a18d1c53e32f41f4167f9d658f7a59027c08a219). - Data limits and docs/test improvements: updated hardcoded data limits and clarified docs; added and adjusted tests for robustness and clarity (commits d3ed0df6f29dd7c653e1408c24aff0afc7319659, 7c2caecde1ee0e269e86e96df5c32af695b2d895, 5af14dd894da14aa4679390c997fec8d661142e1). Major bugs fixed: - Rename last_failure_status ddtag to retry_after and align related tagging across SDKs; reduces confusion and improves metric semantics (commits 750932b58b9773851d4fea892fb60727f160412b, c4928afd094149750bd4b4f1f0c6a37db3ad0397). - Fix retry_count for network error retries and align retry_count tag with other SDKs; improves retry logic reliability and observability (commits 9f1f1e8f7a6710f34e69b62f74449d0d8278a501, c4928afd094149750bd4b4f1f0c6a37db3ad0397). - Fix stale last_failure_status references in test comments and remove/adjust incorrect assertions to ensure test integrity (commits c0fd8a231f9e4f1279cf7347d123db78111e8497, 424dc27bd177766dc1f395436d89520668832485). - Revert unintended key nesting limit changes and add NSString truncation tests; stabilizes parsing behavior and test coverage (commits 6faba8ba82633f29994d7794c1ae1a386cf6a552, 91612007ccdb0dd25b40c4cd4a06f518926ff4ee). - Address review feedback and ensure attribute value length units are clear; rationale added and tests renamed accordingly (commit 4aeddc92e25d7d8acd2d6ad4dc9476d2dd5f64a2). - RUM-8054 related improvements: fix background session preconditions across flows, lint and trailing whitespace issues, and update integration/tests accordingly (commits e8e81ab42a4b9f542e872b95cc01485e5e03905d, de6bb192e868fdf9950abeabcbb77d06bc0661bd, 2c7165c8384d2bd26f791c8304f30168aa615111, a18d1c53e32f41f4167f9d658f7a59027c08a219). Overall impact and accomplishments: - Increased stability and developer velocity by consolidating key GraphQL logic, modernizing telemetry, and strengthening data validity boundaries (UTF-16 handling, data limits). - Improved reliability of session flows and test coverage, reducing flaky tests and ensuring backend alignment across platforms. - Strengthened code quality through lint fixes, review feedback incorporation, and clearer documentation, yielding a more maintainable and observable SDK. Technologies and skills demonstrated: - Swift, iOS SDK development, and GraphQL attribute handling - Telemetry design and event-based data collection - UTF-16 encoding, string truncation, and test coverage for edge cases - Test-driven development, linting, and code review collaboration - Cross-SDK tagging consistency and network retry reliability
April 2026
21 Commits • 3 Features
Apr 1, 2026April 2026 (2026-04) monthly summary for DataDog/dd-sdk-ios: Key features delivered: - GraphQL attribute extraction consolidation: merged extractGraphQLAttributes and buildGraphQL into extractGraphQL. This consolidates the GraphQL attribute path and reduces maintenance burden (commit 4175581059d7a2f278e9ac3adb86c7bd91e72f86, related to RUM-11993). - Telemetry usage modernization: replaced trackWebView() with a generic usage(event:sampleRate:). Improves telemetry flexibility and analytics quality (commit ebbae76cd997b8d7a48cc4dcc3b39483712a1ce44, RUM-10349). - UTF-16 truncation correctness and emoji coverage: aligned attribute value truncation with backend UTF-16 limits and added emoji truncation test coverage (commits 2a189a5cb16d360e33199c9581fd05b4040838f6, de014bc030413f0b283bba079c1ecc233e23425e, c490ba5c8e17ec5e74617d3f1fa8e2ac6f6c9675, RUM-744). - RUM stability and code quality improvements: addressed background session preconditions, lint violations, and review feedback to normalize flows and improve reliability (commits e8e81ab42a4b9f542e872b95cc01485e5e03905d, e8cfc1e20dcb2d9306cca77f54ddb4d7fe346de7, de6bb192e868fdf9950abeabcbb77d06bc0661bd, 2c7165c8384d2bd26f791c8304f30168aa615111, a18d1c53e32f41f4167f9d658f7a59027c08a219). - Data limits and docs/test improvements: updated hardcoded data limits and clarified docs; added and adjusted tests for robustness and clarity (commits d3ed0df6f29dd7c653e1408c24aff0afc7319659, 7c2caecde1ee0e269e86e96df5c32af695b2d895, 5af14dd894da14aa4679390c997fec8d661142e1). Major bugs fixed: - Rename last_failure_status ddtag to retry_after and align related tagging across SDKs; reduces confusion and improves metric semantics (commits 750932b58b9773851d4fea892fb60727f160412b, c4928afd094149750bd4b4f1f0c6a37db3ad0397). - Fix retry_count for network error retries and align retry_count tag with other SDKs; improves retry logic reliability and observability (commits 9f1f1e8f7a6710f34e69b62f74449d0d8278a501, c4928afd094149750bd4b4f1f0c6a37db3ad0397). - Fix stale last_failure_status references in test comments and remove/adjust incorrect assertions to ensure test integrity (commits c0fd8a231f9e4f1279cf7347d123db78111e8497, 424dc27bd177766dc1f395436d89520668832485). - Revert unintended key nesting limit changes and add NSString truncation tests; stabilizes parsing behavior and test coverage (commits 6faba8ba82633f29994d7794c1ae1a386cf6a552, 91612007ccdb0dd25b40c4cd4a06f518926ff4ee). - Address review feedback and ensure attribute value length units are clear; rationale added and tests renamed accordingly (commit 4aeddc92e25d7d8acd2d6ad4dc9476d2dd5f64a2). - RUM-8054 related improvements: fix background session preconditions across flows, lint and trailing whitespace issues, and update integration/tests accordingly (commits e8e81ab42a4b9f542e872b95cc01485e5e03905d, de6bb192e868fdf9950abeabcbb77d06bc0661bd, 2c7165c8384d2bd26f791c8304f30168aa615111, a18d1c53e32f41f4167f9d658f7a59027c08a219). Overall impact and accomplishments: - Increased stability and developer velocity by consolidating key GraphQL logic, modernizing telemetry, and strengthening data validity boundaries (UTF-16 handling, data limits). - Improved reliability of session flows and test coverage, reducing flaky tests and ensuring backend alignment across platforms. - Strengthened code quality through lint fixes, review feedback incorporation, and clearer documentation, yielding a more maintainable and observable SDK. Technologies and skills demonstrated: - Swift, iOS SDK development, and GraphQL attribute handling - Telemetry design and event-based data collection - UTF-16 encoding, string truncation, and test coverage for edge cases - Test-driven development, linting, and code review collaboration - Cross-SDK tagging consistency and network retry reliability
March 2026
10 Commits • 3 Features
Mar 1, 2026In March 2026, the DataDog/dd-sdk-ios team delivered major RUM data model and telemetry enhancements, expanded GraphQL error tracing, and WebView telemetry coverage, while hardening test reliability and scaffolding. These efforts broaden data collection quality for user experience analytics, improve error traceability for GraphQL, and extend instrumentation to WebView usage, positioning the SDK for richer insights and safer CI/CD. Key outcomes include recomposed and enhanced RUM models with profiling context, scroll properties, feature flags, and accessibility improvements; GraphQL trace context and fields added to error events with a consolidated RUMGraphql type and accompanying tests; WebView telemetry tracking and a dedicated trackWebView API with tests; and test reliability improvements addressing syntheticsInfo arguments and flaky tests.
10 Commits • 3 Features
Mar 1, 2026In March 2026, the DataDog/dd-sdk-ios team delivered major RUM data model and telemetry enhancements, expanded GraphQL error tracing, and WebView telemetry coverage, while hardening test reliability and scaffolding. These efforts broaden data collection quality for user experience analytics, improve error traceability for GraphQL, and extend instrumentation to WebView usage, positioning the SDK for richer insights and safer CI/CD. Key outcomes include recomposed and enhanced RUM models with profiling context, scroll properties, feature flags, and accessibility improvements; GraphQL trace context and fields added to error events with a consolidated RUMGraphql type and accompanying tests; WebView telemetry tracking and a dedicated trackWebView API with tests; and test reliability improvements addressing syntheticsInfo arguments and flaky tests.
March 2026
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Quality Metrics
Correctness96.6%
Maintainability91.6%
Architecture92.8%
Performance90.6%
AI Usage31.2%
Skills & Technologies
Programming Languages
Swift
Technical Skills
API IntegrationBackend IntegrationCode QualityCrash ReportingData ModelingData SanitizationError HandlingGraphQLPerformance OptimizationRUM (Real User Monitoring)RefactoringSDK DevelopmentSoftware ArchitectureSwiftSwift Programming
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