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Add OTEL tracing support for Wiremock + automatic OTEL for Aspire integration (#1418)

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* Update aspire to 13.1 (examples + code)

Allows usage of aspire CLI which is very useful for dev in codespaces (for my next PR).

* Add OTEL support

* Initial PR feedback

* PR feedback

* PR feedback

* PR feedback

* Cleanup.

* Cleanup

* Fix

* Fix

* Rename stuff around to be more accurate

* PR feedback

* Update WireMock.Net.OpenTelemetry.csproj

Update <Authors>

* PR feedback parser

* PR feedback package versions

* Status code feedback.

* Update preprocessor directives to to Activity Tracing instead of OpenTelemetry. Is more descriptive.

* Add tests

* Improve tests

---------

Co-authored-by: Stef Heyenrath <Stef.Heyenrath@gmail.com>
This commit is contained in:
Petr Houška
2026-01-18 17:22:36 +01:00
committed by GitHub
parent abe996671e
commit 4525c61847
38 changed files with 2057 additions and 9 deletions
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47
src/WireMock.Net.Minimal/Owin/WireMockMiddleware.cs
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@@ -16,6 +16,10 @@ using System.Collections.Generic;
using WireMock.Constants;
using WireMock.Exceptions;
using WireMock.Util;
#if ACTIVITY_TRACING_SUPPORTED
using System.Diagnostics;
using WireMock.Owin.ActivityTracing;
#endif
#if !USE_ASPNETCORE
using IContext = Microsoft.Owin.IOwinContext;
using OwinMiddleware = Microsoft.Owin.OwinMiddleware;
@@ -97,6 +101,40 @@ namespace WireMock.Owin
{
var request = await _requestMapper.MapAsync(ctx.Request, _options).ConfigureAwait(false);
#if ACTIVITY_TRACING_SUPPORTED
// Start activity if ActivityTracingOptions is configured
var tracingEnabled = _options.ActivityTracingOptions is not null;
var excludeAdmin = _options.ActivityTracingOptions?.ExcludeAdminRequests ?? true;
Activity? activity = null;
// Check if we should trace this request (optionally exclude admin requests)
var shouldTrace = tracingEnabled && !(excludeAdmin && request.Path.StartsWith("/__admin/"));
if (shouldTrace)
{
activity = WireMockActivitySource.StartRequestActivity(request.Method, request.Path);
WireMockActivitySource.EnrichWithRequest(activity, request, _options.ActivityTracingOptions);
}
try
{
await InvokeInternalCoreAsync(ctx, request, activity).ConfigureAwait(false);
}
finally
{
activity?.Dispose();
}
#else
await InvokeInternalCoreAsync(ctx, request).ConfigureAwait(false);
#endif
}
#if ACTIVITY_TRACING_SUPPORTED
private async Task InvokeInternalCoreAsync(IContext ctx, RequestMessage request, Activity? activity)
#else
private async Task InvokeInternalCoreAsync(IContext ctx, RequestMessage request)
#endif
{
var logRequest = false;
IResponseMessage? response = null;
(MappingMatcherResult? Match, MappingMatcherResult? Partial) result = (null, null);
@@ -193,6 +231,10 @@ namespace WireMock.Owin
{
_options.Logger.Error($"Providing a Response for Mapping '{result.Match?.Mapping.Guid}' failed. HttpStatusCode set to 500. Exception: {ex}");
response = ResponseMessageBuilder.Create(500, ex.Message);
#if ACTIVITY_TRACING_SUPPORTED
WireMockActivitySource.RecordException(activity, ex);
#endif
}
finally
{
@@ -211,6 +253,11 @@ namespace WireMock.Owin
PartialMatchResult = result.Partial?.RequestMatchResult
};
#if ACTIVITY_TRACING_SUPPORTED
// Enrich activity with response and mapping info
WireMockActivitySource.EnrichWithLogEntry(activity, log, _options.ActivityTracingOptions);
#endif
LogRequest(log, logRequest);
try