Implement GetConnectionProperties for new connection string formatting

[Copilot]

Overview

This PR implements support for the new connection string formatting introduced in dotnet/aspire#11938. All CommunityToolkit resources that implement IResourceWithConnectionString now expose connection metadata as individual properties through the new GetConnectionProperties() method.

Changes

The upstream Aspire PR introduces a new structure for handling connection strings, where resources expose connection information as a collection of key-value pairs rather than just a constructed connection string. This enables:

• Fine-grained access to individual connection components (host, port, username, etc.)
• Environment variable splatting with configurable prefixes
• Better integration with different client libraries that may need specific connection formats

Implementation Details

For each resource implementing IResourceWithConnectionString, this PR adds:

1. Connection property accessors - Host, Port, and other relevant properties exposed as EndpointReferenceExpression
2. URI expressions - A UriExpression property that provides URI-formatted connection strings
3. GetConnectionProperties() implementation - Returns connection metadata as key-value pairs

Example for server resources:

public EndpointReferenceExpression Host => PrimaryEndpoint.Property(EndpointProperty.Host);
public EndpointReferenceExpression Port => PrimaryEndpoint.Property(EndpointProperty.Port);
public ReferenceExpression UriExpression => ReferenceExpression.Create($"http://{Host}:{Port}");

IEnumerable<KeyValuePair<string, ReferenceExpression>> IResourceWithConnectionString.GetConnectionProperties()
{
    yield return new("Host", ReferenceExpression.Create($"{Host}"));
    yield return new("Port", ReferenceExpression.Create($"{Port}"));
    yield return new("Uri", UriExpression);
}

For child resources (databases, namespaces, models), the implementation uses CombineProperties() to merge parent connection properties with child-specific ones:

IEnumerable<KeyValuePair<string, ReferenceExpression>> IResourceWithConnectionString.GetConnectionProperties() =>
    Parent.CombineProperties([
        new("Database", ReferenceExpression.Create($"{DatabaseName}"))
    ]);

Updated Resources

The following integration packages have been updated:

• ActiveMQ - ActiveMQServerResourceBase (base class for Classic and Artemis)
• EventStore - EventStoreResource
• Flagd - FlagdResource
• GoFeatureFlag - GoFeatureFlagResource
• MailPit - MailPitContainerResource
• Meilisearch - MeilisearchResource
• Ollama - OllamaResource, OllamaModelResource, OpenWebUIResource
• PapercutSmtp - PapercutSmtpContainerResource
• RavenDB - RavenDBServerResource, RavenDBDatabaseResource
• Solr - SolrResource
• Sqlite - SqliteResource, SqliteWebResource
• SurrealDb - SurrealDbServerResource, SurrealDbNamespaceResource, SurrealDbDatabaseResource

Compatibility

This is a breaking change that aligns with the Aspire 13.0 major version release. All implementations follow the same patterns established in the upstream Aspire resources (PostgreSQL, MySQL, Redis, MongoDB, etc.).

Fixes #889

cc @sebastienros

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 --no-restore /p:TargetFramework=net9.0 src/CommunityToolkit.Aspire.Hosting.EventStore/CommunityToolkit.Aspire.Hosting.EventStore.csproj (dns block)
  • Triggering command: dotnet restore (dns block)
  • Triggering command: dotnet workload restore (dns block)
• https://api.github.com/repos/dotnet/aspire/pulls/11938
  • Triggering command: curl -s -H Accept: application/vnd.github.v3+json REDACTED (http block)
• ofvvsblobprodcus315.vsblob.vsassets.io
  • Triggering command: dotnet restore (dns block)
  • Triggering command: dotnet workload restore (dns block)
  • Triggering command: dotnet build --no-restore (dns block)
• u6ovsblobprodcus377.vsblob.vsassets.io
  • Triggering command: dotnet restore CommunityToolkit.Aspire.Hosting.EventStore/CommunityToolkit.Aspire.Hosting.EventStore.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>Adapt connection string generation to support new formatting</issue_title>
<issue_description>dotnet/aspire#11938 is going to introduce a new structure on how Aspire resources handle connection strings, so there's going to be a bit of work in the community toolkit to support this.

We will need to update all resources that generate connection strings to implement the new member from the interface, and return out the collection of parts rather than a constructed .NET-esq connection string.</issue_description>

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

@aaronpowell cc @sebastienros @aaronpowell > They're finally doing it, eh. Good stuff -- will you rev a major version for this? i.e. 10.x ?

Yep, it's coming as part of the next major release, and we'll have to rev to match it.</comment_new>

Fixes #889

---

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[davidfowl]

cc @sebastienros

[sebastienros]

At what point will it be able to use the encoding from 13.0 (Password:uri)?

[aaronpowell]

@sebastienros sorry, I'm not sure I'm following

[sebastienros]

You can add :uri formatter suffix on values that need to be url-encoded:

ReferenceExpression.Create(
            $"{scheme}://{UserNameReference}:{PasswordParameter:uri}@{PrimaryEndpoint.Property(EndpointProperty.Host)}:{PrimaryEndpoint.Property(EndpointProperty.Port)}");

[aaronpowell]

Well, TIL.

@copilot can you do this

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
CommunityToolkit.Aspire.EventStore	100%	100%	46	✔
CommunityToolkit.Aspire.GoFeatureFlag	100%	97%	74	✔
CommunityToolkit.Aspire.Hosting.ActiveMQ	78%	40%	108	➖
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.EventStore	88%	100%	26	✔
CommunityToolkit.Aspire.Hosting.Flagd	79%	100%	32	➖
CommunityToolkit.Aspire.Hosting.GoFeatureFlag	87%	73%	36	✔
CommunityToolkit.Aspire.Hosting.Golang	87%	70%	28	✔
CommunityToolkit.Aspire.Hosting.Java	70%	75%	130	➖
CommunityToolkit.Aspire.Hosting.k6	58%	12%	20	❌
CommunityToolkit.Aspire.Hosting.LavinMQ	78%	50%	18	➖
CommunityToolkit.Aspire.Hosting.LavinMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.MailPit	85%	50%	22	✔
CommunityToolkit.Aspire.Hosting.McpInspector	89%	55%	150	✔
CommunityToolkit.Aspire.Hosting.Meilisearch	71%	57%	58	➖
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%	78%	286	✔
CommunityToolkit.Aspire.Hosting.Ollama	64%	70%	192	➖
CommunityToolkit.Aspire.Hosting.OpenTelemetryCollector	78%	61%	77	➖
CommunityToolkit.Aspire.Hosting.PapercutSmtp	81%	50%	18	✔
CommunityToolkit.Aspire.Hosting.PostgreSQL.Extensions	99%	89%	84	✔
CommunityToolkit.Aspire.Hosting.Python.Extensions	68%	55%	90	➖
CommunityToolkit.Aspire.Hosting.RavenDB	62%	48%	148	➖
CommunityToolkit.Aspire.Hosting.Redis.Extensions	100%	71%	48	✔
CommunityToolkit.Aspire.Hosting.Rust	94%	83%	16	✔
CommunityToolkit.Aspire.Hosting.Solr	72%	100%	22	➖
CommunityToolkit.Aspire.Hosting.SqlDatabaseProjects	76%	63%	154	➖
CommunityToolkit.Aspire.Hosting.Sqlite	89%	89%	52	✔
CommunityToolkit.Aspire.Hosting.SqlServer.Extensions	100%	87%	78	✔
CommunityToolkit.Aspire.Hosting.SurrealDb	55%	40%	256	❌
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	71% (7165 / 10082)	57% (2041 / 3578)	4508	➖

Minimum allowed line rate is 60%