NET Core logging to log SQL and change tracking information to the various output targets. Looking and analyzing the query that is sent to the back end server help us to write better queries and fine-tune performance bottlenecks. Entity Framework Core integrates with the. For Example, the Query may fail to bring the desired result or when the query itself is slow. When the logging level is set at LogLevel.Information, EF emits a log message for each command execution with the time taken: log info: 09:12:36.117 RelationalEventId.CommandExecuted 20101 () Executed DbCommand (4ms) Parameters, CommandType'Text', CommandTimeout'30' SELECT b. There are 17 methods you can overwrite when implementing DbCommandInterceptor. Why Logging There are a lot of scenarios, where you would see the queries the EF Core generates. Why Logging There are a lot of scenarios, where you would see the queries the EF Core generates. Public override void CommandFailed ( DbCommand command, CommandErrorEventData eventData ) Appendix 1: What types of operations can you intercept? How do I use query interception in Entity Framework Core?ĮF Core exposes a base class DbCommandInterceptor with hooks into the query “life cycle”.Ĭreate a class that extends DbCommandInterceptor
Ef core log all commands calls code#
Its important to use this exact name including capitalization, so each namespace matches when code is copied. In the Configure your new project dialog, enter ContosoUniversity for Project name.
Extend the timeout of a command that has certain charateristics.There are a variety of real world use cases for this feature: Query interception is the ability to insert logic before a query executes on the database or insert logic immediately after a query executes (and before control returns to the calling code). This is a summary of what I learned about the feature and is attempting to be the blog post that I wish I would have found during my investigation. Although this is a heavily used feature internally, I found literally two paragraphs of information about the feature in Entity Framework Core.
To decide which features should stay / go, we needed to evaluate how compatible Entity Framework Core features were with our abstractions initially built on Entity Framework’s APIs. NET 6: EF logging is enabled by default in development. Query interception in Entity Framework CoreĪt work, my team is decoupling our NuGet libraries from Entity Framework to enable consumers to switch to Entity Framework Core.
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