65 lines
2.0 KiB
C#
65 lines
2.0 KiB
C#
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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using Microsoft.Extensions.Logging;
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using OpenTelemetry;
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namespace ExtendingTheSdk;
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public class Program
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{
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public static void Main()
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{
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using var loggerFactory = LoggerFactory.Create(builder =>
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builder.AddOpenTelemetry(options =>
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{
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options.IncludeScopes = true;
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options.AddProcessor(new MyProcessor("ProcessorA"))
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.AddProcessor(new MyProcessor("ProcessorB"))
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.AddProcessor(new SimpleLogRecordExportProcessor(new MyExporter("ExporterX")))
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.AddMyExporter();
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}));
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var logger = loggerFactory.CreateLogger<Program>();
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// unstructured log
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logger.LogInformation("Hello, World!");
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// String interpolation, as in the below line, results in unstructured logging, and is not recommended
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// logger.LogInformation($"Hello from potato {0.99}.");
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// structured log with template
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logger.LogInformation("Hello from {name} {price}.", "tomato", 2.99);
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// structured log with strong type
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logger.LogInformation("{food}", new Food { Name = "artichoke", Price = 3.99 });
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// structured log with anonymous type
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logger.LogInformation("{food}", new { Name = "pumpkin", Price = 5.99 });
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// structured log with general type
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logger.LogInformation("{food}", new Dictionary<string, object>
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{
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["Name"] = "truffle",
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["Price"] = 299.99,
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});
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// log with scopes
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using (logger.BeginScope("[operation]"))
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using (logger.BeginScope("[hardware]"))
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{
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logger.LogError("{name} is broken.", "refrigerator");
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}
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// message will be redacted by MyRedactionProcessor
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logger.LogInformation("OpenTelemetry {sensitiveString}.", "<secret>");
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}
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internal struct Food
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{
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public string Name { get; set; }
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public double Price { get; set; }
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}
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}
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