69 lines
1.4 KiB
Markdown
69 lines
1.4 KiB
Markdown
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---
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title: Migrate from Microsoft.Extensions.Logging 2.1 to 2.2 or 3.0
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author: pakrym
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description: Learn how to migrate a non-ASP.NET Core application that uses Microsoft.Extensions.Logging from 2.1 to 2.2 or 3.0.
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ms.author: pakrym
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ms.custom: mvc
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ms.date: 01/04/2019
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uid: migration/logging-nonaspnetcore
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---
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# Migrate from Microsoft.Extensions.Logging 2.1 to 2.2 or 3.0
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This article outlines the common steps for migrating a non-ASP.NET Core application that uses `Microsoft.Extensions.Logging` from 2.1 to 2.2 or 3.0.
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## 2.1 to 2.2
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Manually create `ServiceCollection` and call `AddLogging`.
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2.1 example:
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```csharp
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using (var loggerFactory = new LoggerFactory())
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{
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loggerFactory.AddConsole();
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// use loggerFactory
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}
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```
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2.2 example:
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```csharp
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var serviceCollection = new ServiceCollection();
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serviceCollection.AddLogging(builder => builder.AddConsole());
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using (var serviceProvider = serviceCollection.BuildServiceProvider())
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using (var loggerFactory = serviceProvider.GetService<ILoggerFactory>())
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{
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// use loggerFactory
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}
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```
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## 2.1 to 3.0
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In 3.0, use `LoggingFactory.Create`.
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2.1 example:
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```csharp
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using (var loggerFactory = new LoggerFactory())
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{
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loggerFactory.AddConsole();
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// use loggerFactory
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}
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```
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3.0 example:
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```csharp
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using (var loggerFactory = LoggerFactory.Create(builder => builder.AddConsole()))
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{
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// use loggerFactory
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}
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```
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## Additional resources
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<xref:fundamentals/logging/index>
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