37 lines
1.2 KiB
C#
37 lines
1.2 KiB
C#
using Serilog.Context;
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namespace MyNewProjectName.AdminAPI.Middleware;
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/// <summary>
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/// Middleware to generate and track correlation ID for each request
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/// This ID is added to HTTP headers and Serilog log context for easy tracing
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/// </summary>
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public class CorrelationIdMiddleware
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{
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private readonly RequestDelegate _next;
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private const string CorrelationIdHeaderName = "X-Correlation-ID";
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private const string CorrelationIdLogPropertyName = "CorrelationId";
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public CorrelationIdMiddleware(RequestDelegate next)
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{
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_next = next;
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}
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public async Task InvokeAsync(HttpContext context)
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{
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// Get correlation ID from request header, or generate a new one
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var correlationId = context.Request.Headers[CorrelationIdHeaderName].FirstOrDefault()
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?? $"req-{Guid.NewGuid():N}";
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// Add correlation ID to response header
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context.Response.Headers[CorrelationIdHeaderName] = correlationId;
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// Add correlation ID to Serilog log context
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// All logs within this request will automatically include this correlation ID
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using (LogContext.PushProperty(CorrelationIdLogPropertyName, correlationId))
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{
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await _next(context);
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}
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}
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}
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