[AzureMonitorExporter] Migrate Azure Monitor OpenTelemetry Exporter from swagger to TypeSpec by rajkumar-rangaraj · Pull Request #56891 · Azure/azure-sdk-for-net

rajkumar-rangaraj · 2026-03-10T00:11:14Z

Purpose

Migrate the Azure Monitor OpenTelemetry Exporter code generation from AutoRest (swagger) to TypeSpec, aligning with the broader Azure SDK migration effort.

Changes

TypeSpec client customizations (`client.tsp`)

Added @@clientName(AzureMonitorExporter, "ApplicationInsightsRestClient", "csharp") to preserve the existing C# client class name
Added @@access(AzureMonitorExporter, Access.internal, "csharp") to keep the generated client and options classes internal
Existing model renames and access controls for other languages are unchanged

Generated code (`src/Generated/`) Important changes

Replaced ApplicationInsightsRestClient.cs (swagger) with TypeSpec-generated ApplicationInsightsRestClient.cs + ApplicationInsightsRestClient.RestClient.cs
Generated ApplicationInsightsRestClientOptions (internal) — does not conflict with handwritten AzureMonitorExporterOptions

Code updates

Customizations/ApplicationInsightsRestClient.cs: Added internal constructor (ClientDiagnostics, HttpPipeline, string) to bridge old API shape; updated _pipeline → Pipeline, _host → _endpoint
Internals/HttpPipelineHelper.cs: Added ModelReaderWriterOptions parameter to DeserializeTrackResponse() call
Customizations/AzureMonitorOpenTelemetryExporterContext.Custom.cs: Deleted — source generator now handles Default property
API baselines (api/*.cs): Removed AzureMonitorOpenTelemetryExporterContext (now internal)
ApiCompatBaseline.txt: Added suppression for intentional removal of AzureMonitorOpenTelemetryExporterContext from public API

…s and improve serialization - Updated StackFrame class to include additional binary data properties. - Enhanced TelemetryErrorDetails and TelemetryEventData classes with new serialization methods and additional properties. - Refactored TelemetryExceptionData to include improved handling of exceptions and properties. - Removed outdated autorest.md file and added tsp-location.yaml for TypeSpec configuration.

… Support - Updated TelemetryExceptionDetails to include a dictionary for additional binary data properties. - Modified TelemetryItem to support additional binary data properties and improved serialization methods. - Enhanced TrackResponse to handle additional properties and improved JSON serialization/deserialization. - Introduced UnknownMonitorDomain class to manage unknown telemetry data types with appropriate serialization. - Updated HttpPipelineHelper to utilize new serialization methods for TrackResponse.

…e correct endpoint field

Copilot

Pull request overview

This PR migrates Azure.Monitor.OpenTelemetry.Exporter code generation from AutoRest (swagger) to TypeSpec, updating the generated REST client/models/serialization stack while preserving the existing internal client surface and updating API baselines accordingly.

Changes:

Introduces TypeSpec generation configuration (tsp-location.yaml, metadata.json) and removes the legacy autorest.md flow.
Replaces/updates generated client + model serialization to the TypeSpec/System.ClientModel pattern (new split rest client, MRW context, additional-properties handling).
Updates handwritten glue code and tests to align with the new generated shapes and adjusts API baselines / compat suppressions.

Reviewed changes

Copilot reviewed 12 out of 75 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/tsp-location.yaml	Adds TypeSpec source location + entrypoint for generation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/metadata.json	Adds package metadata mapping for API versions.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/autorest.md	Removes swagger/AutoRest generation configuration.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Azure.Monitor.OpenTelemetry.Exporter.csproj	Removes AutoRest dependency flag for the project.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/ApiCompatBaseline.txt	Adds ApiCompat suppression for context type no longer in public API.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/api/Azure.Monitor.OpenTelemetry.Exporter.netstandard2.0.cs	Updates public API baseline (removes exporter context).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/api/Azure.Monitor.OpenTelemetry.Exporter.net8.0.cs	Updates public API baseline (removes exporter context).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/api/Azure.Monitor.OpenTelemetry.Exporter.net10.0.cs	Updates public API baseline (removes exporter context).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/tests/Azure.Monitor.OpenTelemetry.Exporter.Tests/AzureMonitorTraceExporterTests.cs	Updates reflection field name `_host` → `_endpoint`.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Internals/HttpPipelineHelper.cs	Updates TrackResponse deserialization call to pass wire options.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Customizations/ApplicationInsightsRestClient.cs	Adds bridge ctor + updates request building to match new generated fields/pipeline shape.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Customizations/AzureMonitorOpenTelemetryExporterContext.Custom.cs	Removes handwritten context; relies on source generation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/ApplicationInsightsRestClient.cs	TypeSpec-generated client implementation + protocol method pattern.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/ApplicationInsightsRestClient.RestClient.cs	Adds generated request creation method for Track.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/ApplicationInsightsRestClientOptions.cs	Adds generated client options with service version mapping.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/AzureMonitorOpenTelemetryExporterContext.cs	Adds MRW buildable context for source-generated serialization.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MonitorDomainKind.cs	Adds discriminator-like kind type for MonitorDomain polymorphism.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/UnknownMonitorDomain.cs	Adds unknown polymorphic fallback type.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/UnknownMonitorDomain.Serialization.cs	Adds serialization/deserialization for unknown domain fallback.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MonitorDomain.cs	Updates base model to new additional-properties + kind handling.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MonitorDomain.Serialization.cs	Adds polymorphic deserialization + MRW persistence hooks.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MonitorBase.cs	Updates monitor base model to new additional-properties pattern.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MonitorBase.Serialization.cs	Updates serialization to MRW/IJsonModel pattern.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TrackResponse.cs	Updates response model to include additional-properties tracking and new collection types.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TrackResponse.Serialization.cs	Updates deserialization to accept MRW options and adds explicit operator from `Response`.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryItem.cs	Updates telemetry item model for additional-properties tracking.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryItem.Serialization.cs	Moves to IJsonModel/MRW and adds full deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryErrorDetails.cs	Updates error details model for additional-properties tracking.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryErrorDetails.Serialization.cs	Updates to IJsonModel/MRW and captures unknown JSON properties.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryExceptionDetails.cs	Updates exception details shape (mutability + additional-properties tracking).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryExceptionDetails.Serialization.cs	Updates to IJsonModel/MRW and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryExceptionData.cs	Updates derived domain constructor signatures to new base(kind/additionalProps) pattern.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryEventData.cs	Updates derived domain model shape (mutability + new base ctor).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/TelemetryEventData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/StackFrame.cs	Updates stack frame model (mutability + additional-properties tracking).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/StackFrame.Serialization.cs	Updates to IJsonModel/MRW and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/SeverityLevel.cs	Updates enum-like struct conversions/docs and adds nullable implicit conversion.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/DataPointType.cs	Updates enum-like struct conversions/docs and adds nullable implicit conversion.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MetricDataPoint.cs	Updates metric point model (mutability + additional-properties tracking).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MetricsData.cs	Updates derived domain to new base ctor + doc formatting.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MetricsData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MessageData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/MessageData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/RequestData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/RequestData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/RemoteDependencyData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/RemoteDependencyData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/PageViewData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/PageViewData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/PageViewPerfData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/AvailabilityData.cs	Updates derived domain model to new base ctor and mutability.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Models/AvailabilityData.Serialization.cs	Updates to MonitorDomain + IJsonModel and adds deserialize implementation.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/TypeFormatters.cs	Adds TypeSpec-generated formatting helpers used by request building/serialization.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/SerializationFormat.cs	Adds serialization format enum used by TypeFormatters/helpers.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/RequestContextExtensions.cs	Adds parsing helper for RequestContext into token/error options.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/RawRequestUriBuilderExtensions.cs	Adds query update/delimited helpers.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/ClientPipelineExtensions.cs	Adds pipeline send helpers respecting RequestContext options.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/ErrorResult.cs	Adds Response wrapper that throws on Value access.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/CancellationTokenExtensions.cs	Adds CancellationToken → RequestContext helper.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/Utf8JsonRequestContent.cs	Makes request content partial and adds docs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/BinaryContentHelper.cs	Updates JSON RequestContent construction to use MRW wire options.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/Optional.cs	Updates Optional helpers (partial + method ordering/formatting).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/Argument.cs	Updates Argument helpers (partial + removes unused helpers).
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/ChangeTrackingList.cs	Makes change-tracking list partial + adds docs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/ChangeTrackingDictionary.cs	Makes change-tracking dictionary partial + adds docs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/MultipartFormDataRequestContent.cs	Removes unused multipart request content helper.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/CodeGenTypeAttribute.cs	Adds TypeSpec customization attribute stubs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/CodeGenSuppressAttribute.cs	Adds TypeSpec suppression attribute stubs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/CodeGenSerializationAttribute.cs	Adds TypeSpec serialization-hook attribute stubs.
sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/Internal/CodeGenMemberAttribute.cs	Adds TypeSpec member-rename attribute stub.

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...tor/Azure.Monitor.OpenTelemetry.Exporter/src/Customizations/ApplicationInsightsRestClient.cs

...r/Azure.Monitor.OpenTelemetry.Exporter/src/Generated/ApplicationInsightsRestClientOptions.cs

sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/ApiCompatBaseline.txt

github-actions · 2026-03-10T02:18:47Z

API Change Check

APIView identified API level changes in this PR and created the following API reviews

Azure.Monitor.OpenTelemetry.Exporter

… to public

…re correct API versioning

… specifications

mattsains-msft

have you managed to test this using the integration tests?

Also, I'd like to see a second review because I had a lot of influence on this PR

...tor/Azure.Monitor.OpenTelemetry.Exporter/api/Azure.Monitor.OpenTelemetry.Exporter.net10.0.cs

rajkumar-rangaraj · 2026-03-17T00:15:42Z

have you managed to test this using the integration tests?

yes, it works without any issues.

…1 release Added PR links to existing entries and new changelog items: - Azure#57194: Gen-ai attribute truncation (256KB limit) - Azure#56813: Classic TelemetryContext tag mapping - Azure#56368: AOT warning regression fix - Azure#56891: ApplicationInsightsRestClientSettings PR link Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Update Azure.Monitor.OpenTelemetry.Exporter CHANGELOG for 1.7.0-beta.1 release Added PR links to existing entries and new changelog items: - #57194: Gen-ai attribute truncation (256KB limit) - #56813: Classic TelemetryContext tag mapping - #56368: AOT warning regression fix - #56891: ApplicationInsightsRestClientSettings PR link Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Update Azure.Monitor.OpenTelemetry.Exporter to 1.7.0 GA and remove #56813 from changelog Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Apply suggestion from @Copilot Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

rajkumar-rangaraj added 3 commits March 9, 2026 17:00

Fix internal field retrieval in AzureMonitorTraceExporter tests to us…

84a274d

…e correct endpoint field

Copilot AI review requested due to automatic review settings March 10, 2026 00:11

rajkumar-rangaraj requested review from harsimar, mattsains-msft and xiang17 as code owners March 10, 2026 00:11

github-actions bot added the Monitor - Exporter Monitor OpenTelemetry Exporter label Mar 10, 2026

Copilot started reviewing on behalf of rajkumar-rangaraj March 10, 2026 00:12 View session

Copilot AI reviewed Mar 10, 2026

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rajkumar-rangaraj added 2 commits March 9, 2026 21:04

Update API baselines, ApiCompat suppression, and revert Context class…

114616c

… to public

Fix request URI construction in ApplicationInsightsRestClient to ensu…

36cacd1

…re correct API versioning

rajkumar-rangaraj mentioned this pull request Mar 10, 2026

Update Monitor Exporter tsp config Azure/azure-rest-api-specs#40722

Merged

Update commit reference in tsp-location.yaml to align with latest API…

db9fce2

… specifications

mattsains-msft approved these changes Mar 16, 2026

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...tor/Azure.Monitor.OpenTelemetry.Exporter/api/Azure.Monitor.OpenTelemetry.Exporter.net10.0.cs Show resolved Hide resolved

harsimar approved these changes Mar 16, 2026

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rajkumar-rangaraj merged commit a05166e into main Mar 17, 2026
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rajkumar-rangaraj deleted the rajrang/typespec branch March 17, 2026 00:15

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[AzureMonitorExporter] Migrate Azure Monitor OpenTelemetry Exporter from swagger to TypeSpec#56891

[AzureMonitorExporter] Migrate Azure Monitor OpenTelemetry Exporter from swagger to TypeSpec#56891
rajkumar-rangaraj merged 6 commits intomainfrom
rajrang/typespec

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rajkumar-rangaraj commented Mar 10, 2026

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TypeSpec client customizations (client.tsp)

Generated code (src/Generated/) Important changes

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TypeSpec client customizations (`client.tsp`)

Generated code (`src/Generated/`) Important changes

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