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Learn how to use IDesignTimeDbContextFactory to create an EF Core DbContext for migrations without running Program.cs or the ASP.NET Core startup pipeline.
A complete guide to configuring database connections in ASP.NET Core using EF Core. Learn how to use IDesignTimeDbContextFactory, configure DbContext in Program.cs/Startup.cs, and use the OnConfiguring fallback method for design-time and runtime scenarios.
See code examples in this article: Let's imagine you have a solution with many projects including a web application with the name "MiniService", which contains appsettings.json and a library project with DbContext and Migrations with any name f.e. "MiniService.Data". You most likely want to use the exact connection string in the appsettings.json used by the web app. May be different cases when you will need to run migrations from the command line, for example, there is no 'Package Manager Console' in VS for Mac.
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