Web UI Dashboard

Optional web dashboard for monitoring the VibeMQ broker: health, metrics, and queues in a browser. The dashboard runs on a separate HTTP port (default 12925) and does not require ASP.NET Core.

Overview

The VibeMQ.Server.WebUI package provides:

• A Vue 3 SPA served from the same process as the broker

• REST API endpoints for health, metrics, and queue list/detail

• Lightweight HttpListener-based server (no Kestrel/ASP.NET)

• All UI assets embedded in the assembly after building the frontend

Quick Start

Add the package:

dotnet add package VibeMQ.Server.WebUI

Run the broker with the dashboard in one call:

using VibeMQ.Server;
using VibeMQ.Server.WebUI;

var broker = BrokerBuilder.Create()
    .UsePort(2925)
    .UseLoggerFactory(loggerFactory)
    .Build();

await broker.RunWithWebUIAsync();

Open http://localhost:12925/ in a browser to see the dashboard.

With Options

await broker.RunWithWebUIAsync(new WebUIOptions {
    Port = 12925,
    Enabled = true,
    PathPrefix = "/",
}, cancellationToken);

Manual Start

You can start the Web UI server yourself and run it alongside the broker:

var webUi = new WebUIServer(broker, new WebUIOptions { Port = 12925 }, logger);
webUi.Start();
try {
    await broker.RunAsync(cancellationToken);
} finally {
    await webUi.DisposeAsync();
}

Configuration

Parameter	Default	Description
Enabled	true	Whether the Web UI HTTP server is started
Port	12925	HTTP port for the dashboard
PathPrefix	“/”	URL path prefix (must start and end with /)

API Endpoints

All responses are JSON with snake_case property names.

Method	Path	Description
GET	/api/version	Server and Web UI assembly versions (server_version, webui_version)
GET	/api/health	Broker health: connections, queue count, in-flight, memory, timestamp
GET	/api/metrics	Full metrics snapshot (counters, gauges, latency, uptime)
GET	/api/queues	List of queue names
GET	/api/queues/{name}	Single queue metadata (message count, subscribers, delivery mode, etc.)
GET	/api/queues/{name}/messages	List messages in queue (query: limit, offset). Peek only.
GET	/api/queues/{name}/messages/{messageId}	Single message (full body) for viewing
DELETE	/api/queues/{name}/messages/{messageId}	Remove one message from the queue
DELETE	/api/queues/{name}/messages	Purge all messages in the queue
DELETE	/api/queues/{name}	Delete the queue and all its messages

Building the Frontend

The dashboard UI is a Vue 3 + Vite application. To refresh the embedded assets after changing the UI:

cd src/VibeMQ.Server.WebUI/App
npm install
npm run build

Then rebuild the .NET project. The contents of App/dist/ are embedded into the assembly. If dist/ is missing, the project still builds, but opening the dashboard in a browser will show a 503 with instructions.

Requirements

• .NET 8.0 or later

• Reference VibeMQ.Server (and transitively VibeMQ.Core)

• Node.js and npm only for building the frontend; not required at runtime

Security

The dashboard is intended for trusted networks (e.g. internal admin). It has no built-in authentication. If you expose the dashboard port to the internet, consider putting it behind a reverse proxy with HTTP Basic auth or similar.