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Print proxy URL when starting Dev Proxy in detach mode #1591

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Print proxy URL when starting Dev Proxy in detach mode #1591

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c1c1b87
Initial plan
Copilot Mar 5, 2026
ea0f7e1
Print proxy URL with assigned port when starting Dev Proxy in detach …
Copilot Mar 5, 2026
81c063f
Merge branch 'main' into copilot/print-assigned-port-number
waldekmastykarz Mar 5, 2026
32b261d
Merge branch 'main' into copilot/print-assigned-port-number
waldekmastykarz Mar 5, 2026
9dff920
Update DevProxy/Program.cs
waldekmastykarz Mar 5, 2026
cf92f1f
Merge branch 'main' into copilot/print-assigned-port-number
waldekmastykarz Mar 6, 2026
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13 changes: 12 additions & 1 deletion DevProxy/Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -107,11 +107,22 @@ static async Task<int> StartDetachedProcessAsync(string[] args)
await Task.Delay(200);

var state = await StateManager.LoadStateAsync();
if (state != null)
if (state is { Port: > 0 })
{
Uri? apiUri = null;
if (!string.IsNullOrWhiteSpace(state.ApiUrl))
{
Uri.TryCreate(state.ApiUrl, UriKind.Absolute, out apiUri);
}

// Build proxy URL in a way that correctly handles IPv6 hosts.
string hostForProxy = apiUri?.Host ?? IPAddress.Loopback.ToString();
var proxyUriBuilder = new UriBuilder(Uri.UriSchemeHttp, hostForProxy, state.Port);
var proxyUrl = proxyUriBuilder.Uri.ToString().TrimEnd('/');
await Console.Out.WriteLineAsync("Dev Proxy started in background.");
await Console.Out.WriteLineAsync();
await Console.Out.WriteLineAsync($" PID: {state.Pid}");
await Console.Out.WriteLineAsync($" Proxy URL: {proxyUrl}");
await Console.Out.WriteLineAsync($" API URL: {state.ApiUrl}");
await Console.Out.WriteLineAsync($" Log file: {state.LogFile}");
await Console.Out.WriteLineAsync();
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15 changes: 15 additions & 0 deletions DevProxy/Proxy/ProxyEngine.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
using DevProxy.Abstractions.Proxy;
using DevProxy.Abstractions.Utils;
using DevProxy.Commands;
using DevProxy.State;
using Microsoft.VisualStudio.Threading;
using System.Collections.Concurrent;
using System.Diagnostics;
Expand Down Expand Up @@ -141,6 +142,20 @@ protected override async Task ExecuteAsync(CancellationToken stoppingToken)
ProxyServer.AddEndPoint(_explicitEndPoint);
await ProxyServer.StartAsync(cancellationToken: stoppingToken);

// Update config with actual port (resolves port 0 to OS-assigned port)
_config.Port = _explicitEndPoint.Port;

// Update state file with actual port so detach parent gets the resolved port
if (DevProxyCommand.IsInternalDaemon)
{
var state = await StateManager.LoadStateAsync(stoppingToken);
if (state is not null)
{
state.Port = _config.Port;
await StateManager.SaveStateAsync(state, stoppingToken);
}
}

// run first-run setup on macOS
FirstRunSetup();

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