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Spike polyglot integrations through ATS projection#16110

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Spike polyglot integrations through ATS projection#16110
davidfowl wants to merge 1 commit intomainfrom
davidfowl/ts-integration

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@davidfowl
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@davidfowl davidfowl commented Apr 13, 2026

Description

This spike lets external integration hosts participate in the same ATS projection pipeline used by CLR-scanned integrations. A TypeScript integration host can now emit ATS-shaped capability metadata that the AppHost server normalizes into synthetic capabilities, which means the generated TypeScript AppHost SDK can expose builder.addKafka(...) instead of relying on internal _client.invokeCapability(...) escape hatches.

The change also rounds out the demo path for the TypeScript spike:

  • start integration hosts from the server-provided launch spec
  • build the generated AppHost server with --no-incremental so temp hosts do not go stale
  • split the Kafka spike into reusable host runtime plus authored integration logic
  • run the TypeScript AppHost through the normal aspire run / aspire start lifecycle with generated addKafka(...)
  • capture the design in docs/specs/polyglot-integrations.md

This is intentionally a spike, not a finished product. It proves the direction that external integrations can stay as code while still projecting into the same generated guest-language surface as .NET integrations.

Validation:

  • restore.cmd
  • dotnet build src\Aspire.Cli\Aspire.Cli.csproj /p:SkipNativeBuild=true
  • playground\TsIntegrationSpike\kafka-integration\node_modules\.bin\tsc.cmd --noEmit
  • playground\TsIntegrationSpike\node_modules\.bin\tsc.cmd --noEmit -p tsconfig.apphost.json
  • dotnet artifacts\bin\Aspire.Cli\Debug\net10.0\aspire.dll run -d --isolated
  • artifacts\bin\Aspire.Cli\Debug\net10.0\aspire.exe start

Fixes # (issue)

Checklist

  • Is this feature complete?
    • Yes. Ready to ship.
    • No. Follow-up changes expected.
  • Are you including unit tests for the changes and scenario tests if relevant?
    • Yes
    • No
  • Did you add public API?
    • Yes
      • If yes, did you have an API Review for it?
        • Yes
        • No
      • Did you add <remarks /> and <code /> elements on your triple slash comments?
        • Yes
        • No
    • No
  • Does the change make any security assumptions or guarantees?
    • Yes
      • If yes, have you done a threat model and had a security review?
        • Yes
        • No
    • No
  • Does the change require an update in our Aspire docs?

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github-actions bot commented Apr 13, 2026

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 16110

Or

  • Run remotely in PowerShell:
iex "& { $(irm https://raw.githubusercontent.com/microsoft/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 16110"

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Re-running the failed jobs in the CI workflow for this pull request because 1 job was identified as retry-safe transient failures in the CI run attempt.
GitHub was asked to rerun all failed jobs for that attempt, and the rerun is being tracked in the rerun attempt.
The job links below point to the failed attempt jobs that matched the retry-safe transient failure rules.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@davidfowl davidfowl force-pushed the davidfowl/ts-integration branch from 6a91b0e to bb3cd12 Compare April 15, 2026 15:55
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🎬 CLI E2E Test Recordings — 70 recordings uploaded (commit bb3cd12)

View recordings
Test Recording
AddPackageInteractiveWhileAppHostRunningDetached ▶️ View Recording
AddPackageWhileAppHostRunningDetached ▶️ View Recording
AgentCommands_AllHelpOutputs_AreCorrect ▶️ View Recording
AgentInitCommand_DefaultSelection_InstallsSkillOnly ▶️ View Recording
AgentInitCommand_MigratesDeprecatedConfig ▶️ View Recording
AspireAddPackageVersionToDirectoryPackagesProps ▶️ View Recording
AspireUpdateRemovesAppHostPackageVersionFromDirectoryPackagesProps ▶️ View Recording
Banner_DisplayedOnFirstRun ▶️ View Recording
Banner_DisplayedWithExplicitFlag ▶️ View Recording
Banner_NotDisplayedWithNoLogoFlag ▶️ View Recording
CertificatesClean_RemovesCertificates ▶️ View Recording
CertificatesTrust_WithNoCert_CreatesAndTrustsCertificate ▶️ View Recording
CertificatesTrust_WithUntrustedCert_TrustsCertificate ▶️ View Recording
ConfigSetGet_CreatesNestedJsonFormat ▶️ View Recording
CreateAndRunAspireStarterProject ▶️ View Recording
CreateAndRunAspireStarterProjectWithBundle ▶️ View Recording
CreateAndRunEmptyAppHostProject ▶️ View Recording
CreateAndRunJavaEmptyAppHostProject ▶️ View Recording
CreateAndRunJsReactProject ▶️ View Recording
CreateAndRunPythonReactProject ▶️ View Recording
CreateAndRunTypeScriptEmptyAppHostProject ▶️ View Recording
CreateAndRunTypeScriptStarterProject ▶️ View Recording
CreateJavaAppHostWithViteApp ▶️ View Recording
CreateTypeScriptAppHostWithViteApp ▶️ View Recording
DashboardRunWithOtelTracesReturnsNoTraces ▶️ View Recording
DeployK8sBasicApiService ▶️ View Recording
DeployK8sWithGarnet ▶️ View Recording
DeployK8sWithMongoDB ▶️ View Recording
DeployK8sWithMySql ▶️ View Recording
DeployK8sWithPostgres ▶️ View Recording
DeployK8sWithRabbitMQ ▶️ View Recording
DeployK8sWithRedis ▶️ View Recording
DeployK8sWithSqlServer ▶️ View Recording
DeployK8sWithValkey ▶️ View Recording
DeployTypeScriptAppToKubernetes ▶️ View Recording
DescribeCommandResolvesReplicaNames ▶️ View Recording
DescribeCommandShowsRunningResources ▶️ View Recording
DetachFormatJsonProducesValidJson ▶️ View Recording
DoListStepsShowsPipelineSteps ▶️ View Recording
DoctorCommand_DetectsDeprecatedAgentConfig ▶️ View Recording
DoctorCommand_WithSslCertDir_ShowsTrusted ▶️ View Recording
DoctorCommand_WithoutSslCertDir_ShowsPartiallyTrusted ▶️ View Recording
GlobalMigration_HandlesCommentsAndTrailingCommas ▶️ View Recording
GlobalMigration_HandlesMalformedLegacyJson ▶️ View Recording
GlobalMigration_PreservesAllValueTypes ▶️ View Recording
GlobalMigration_SkipsWhenNewConfigExists ▶️ View Recording
GlobalSettings_MigratedFromLegacyFormat ▶️ View Recording
InitTypeScriptAppHost_AugmentsExistingViteRepoAtRoot ▶️ View Recording
InvalidAppHostPathWithComments_IsHealedOnRun ▶️ View Recording
LegacySettingsMigration_AdjustsRelativeAppHostPath ▶️ View Recording
LogsCommandShowsResourceLogs ▶️ View Recording
OtelLogsReturnsStructuredLogsFromStarterApp ▶️ View Recording
PsCommandListsRunningAppHost ▶️ View Recording
PsFormatJsonOutputsOnlyJsonToStdout ▶️ View Recording
PublishWithConfigureEnvFileUpdatesEnvOutput ▶️ View Recording
PublishWithDockerComposeServiceCallbackSucceeds ▶️ View Recording
PublishWithoutOutputPathUsesAppHostDirectoryDefault ▶️ View Recording
RestoreGeneratesSdkFiles ▶️ View Recording
RestoreSupportsConfigOnlyHelperPackageAndCrossPackageTypes ▶️ View Recording
RunFromParentDirectory_UsesExistingConfigNearAppHost ▶️ View Recording
SecretCrudOnDotNetAppHost ▶️ View Recording
SecretCrudOnTypeScriptAppHost ▶️ View Recording
StagingChannel_ConfigureAndVerifySettings_ThenSwitchChannels ▶️ View Recording
StartAndWaitForTypeScriptSqlServerAppHostWithNativeAssets ▶️ View Recording
StopAllAppHostsFromAppHostDirectory ▶️ View Recording
StopAllAppHostsFromUnrelatedDirectory ▶️ View Recording
StopNonInteractiveMultipleAppHostsShowsError ▶️ View Recording
StopNonInteractiveSingleAppHost ▶️ View Recording
StopWithNoRunningAppHostExitsSuccessfully ▶️ View Recording
UnAwaitedChainsCompileWithAutoResolvePromises ▶️ View Recording

📹 Recordings uploaded automatically from CI run #24464471957

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