Remove npm functionality moved to Aspire 13

[Copilot]

npm support (AddNpmApp, AddViteApp, WithNpmPackageInstallation) is moving to Aspire.Hosting.NodeJS in Aspire 13 (dotnet/aspire#12283). Yarn and pnpm remain Community Toolkit exclusive.

Removed

• AddViteApp() - Vite convenience wrapper
• WithNpmPackageInstallation() - npm package installer for Node apps
• WithNpmPackageInstaller() - npm installer for Nx/Turborepo monorepos
• NpmInstallerResource - npm installer resource type
• JavaScriptPackageManagerAnnotation / JavaScriptPackageInstallerAnnotation - now provided by Aspire

Retained (yarn/pnpm)

• AddYarnApp() / AddPnpmApp()
• WithYarnPackageInstallation() / WithPnpmPackageInstallation()
• WithYarnPackageInstaller() / WithPnpmPackageInstaller() for monorepos
• YarnInstallerResource / PnpmInstallerResource

Migration

Before:

builder.AddViteApp("vite-demo")
    .WithNpmPackageInstallation();

var nx = builder.AddNxApp("nx")
    .WithNpmPackageInstaller();

After (use Aspire.Hosting.NodeJS):

builder.AddNpmApp("vite-demo", "./vite-demo", "dev")
    .WithNpmPackageInstallation()
    .WithHttpEndpoint(env: "PORT");

// For CT yarn/pnpm:
builder.AddYarnApp("yarn-demo", "./yarn-demo")
    .WithYarnPackageInstallation();

var nx = builder.AddNxApp("nx")
    .WithYarnPackageInstaller();  // Yarn still in CT

Notes

• Annotation types consumed by yarn/pnpm code now come from Aspire.Hosting.NodeJS
• WithMappedEndpointPort() preserves npm annotation compatibility for Aspire interop
• Requires Aspire 13 preview packages to build

---

Impact: -513 lines (13 files) | npm functionality → Aspire | yarn/pnpm → CT exclusive

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dnceng.pkgs.visualstudio.com
  • Triggering command: dotnet build src/CommunityToolkit.Aspire.Hosting.NodeJS.Extensions/CommunityToolkit.Aspire.Hosting.NodeJS.Extensions.csproj (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Remove AddViteApp and WithNpmPackageInstaller</issue_title>
<issue_description>Some of the Node.js extensions package is going to be part of Aspire 13, dotnet/aspire#12283 is the PR that the changes landed, so we need to remove those from the CT.

The Yarn and pnpm support aren't moving across, but the annotation types have been moved, so we should use the annotations from Aspire and set them up with yarn/pnpm.</issue_description>

Comments on the Issue (you are @copilot in this section)

@aaronpowell Will they move for the Aspire 13 release? If so, we can track them as part of this work, otherwise we'll spin a seperate issue.

• Fixes Remove AddViteApp and WithNpmPackageInstaller #924

---

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[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
CommunityToolkit.Aspire.GoFeatureFlag	100%	97%	74	✔
CommunityToolkit.Aspire.Hosting.ActiveMQ	79%	40%	100	➖
CommunityToolkit.Aspire.Hosting.ActiveMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.Adminer	73%	50%	20	➖
CommunityToolkit.Aspire.Hosting.Azure.Dapr	29%	7%	124	❌
CommunityToolkit.Aspire.Hosting.Azure.Dapr.Redis	61%	34%	76	➖
CommunityToolkit.Aspire.Hosting.Azure.DataApiBuilder	100%	100%	22	✔
CommunityToolkit.Aspire.Hosting.Bun	96%	83%	28	✔
CommunityToolkit.Aspire.Hosting.Dapr	60%	36%	836	❌
CommunityToolkit.Aspire.Hosting.DbGate	94%	50%	18	✔
CommunityToolkit.Aspire.Hosting.Deno	98%	85%	44	✔
CommunityToolkit.Aspire.Hosting.Flagd	100%	100%	24	✔
CommunityToolkit.Aspire.Hosting.GoFeatureFlag	95%	73%	28	✔
CommunityToolkit.Aspire.Hosting.Golang	87%	70%	28	✔
CommunityToolkit.Aspire.Hosting.Java	70%	75%	130	➖
CommunityToolkit.Aspire.Hosting.k6	58%	12%	20	❌
CommunityToolkit.Aspire.Hosting.Keycloak.Extensions	100%	100%	22	✔
CommunityToolkit.Aspire.Hosting.KurrentDB	94%	100%	18	✔
CommunityToolkit.Aspire.Hosting.LavinMQ	78%	50%	18	➖
CommunityToolkit.Aspire.Hosting.LavinMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.MailPit	91%	50%	14	✔
CommunityToolkit.Aspire.Hosting.McpInspector	89%	55%	150	✔
CommunityToolkit.Aspire.Hosting.Meilisearch	73%	57%	50	➖
CommunityToolkit.Aspire.Hosting.Minio	93%	75%	48	✔
CommunityToolkit.Aspire.Hosting.MongoDB.Extensions	96%	83%	36	✔
CommunityToolkit.Aspire.Hosting.MySql.Extensions	100%	88%	78	✔
CommunityToolkit.Aspire.Hosting.Ngrok	52%	35%	82	❌
CommunityToolkit.Aspire.Hosting.NodeJS.Extensions	97%	85%	180	✔
CommunityToolkit.Aspire.Hosting.Ollama	67%	70%	174	➖
CommunityToolkit.Aspire.Hosting.OpenTelemetryCollector	78%	61%	77	➖
CommunityToolkit.Aspire.Hosting.PapercutSmtp	92%	50%	10	✔
CommunityToolkit.Aspire.Hosting.PostgreSQL.Extensions	99%	89%	84	✔
CommunityToolkit.Aspire.Hosting.Python.Extensions	39%	32%	90	❌
CommunityToolkit.Aspire.Hosting.RavenDB	63%	49%	136	➖
CommunityToolkit.Aspire.Hosting.Redis.Extensions	100%	71%	48	✔
CommunityToolkit.Aspire.Hosting.Rust	94%	83%	16	✔
CommunityToolkit.Aspire.Hosting.Solr	96%	100%	14	✔
CommunityToolkit.Aspire.Hosting.SqlDatabaseProjects	52%	49%	206	❌
CommunityToolkit.Aspire.Hosting.Sqlite	99%	89%	42	✔
CommunityToolkit.Aspire.Hosting.SqlServer.Extensions	100%	87%	78	✔
CommunityToolkit.Aspire.Hosting.SurrealDb	55%	40%	244	❌
CommunityToolkit.Aspire.KurrentDB	100%	100%	46	✔
CommunityToolkit.Aspire.MassTransit.RabbitMQ	100%	100%	30	✔
CommunityToolkit.Aspire.Meilisearch	97%	92%	68	✔
CommunityToolkit.Aspire.Microsoft.Data.Sqlite	89%	85%	52	✔
CommunityToolkit.Aspire.Microsoft.EntityFrameworkCore.Sqlite	61%	58%	114	➖
CommunityToolkit.Aspire.Minio.Client	73%	59%	88	➖
CommunityToolkit.Aspire.OllamaSharp	77%	71%	132	➖
CommunityToolkit.Aspire.RavenDB.Client	60%	53%	237	➖
CommunityToolkit.Aspire.SurrealDb	79%	63%	78	➖
Summary	70% (6912 / 9922)	56% (1967 / 3518)	4360	➖

Minimum allowed line rate is 60%

[eerhardt]

You should be able to use https://github.com/dotnet/aspire/blob/main/src/Aspire.Hosting.NodeJs/JavaScriptPackageManagerAnnotation.cs now with the latest builds.

[aaronpowell]

done

[eerhardt]

Would it be possible to build AddYarnApp on top of AddJavaScriptApp?

[aaronpowell]

that's just legacy docs I have to clean up still, it's meant to be replaced by AddJavaScriptApp().WithYarn()