secrets.json

C# – How to update appsettings.json programmatically

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You have to overwrite the appsettings.json file to be able to update values programmatically. You have to deal with the whole file, not individual parts of it. The process can be summarized in the following steps: There are two options for deserialization. You can either 1) Deserialize appsettings.json into a dynamic object or 2) Load … Read more

User Secrets not working due to missing UserSecretsIdAttribute

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Problem You’ve configured user secrets properly, but the framework will not swap in the secret value at runtime. It appears to not be loading secrets.json at all. Check if you’re using GenerateAssemblyInfo=false in your .csproj file. When you add a user secrets file, it generates a user secrets guid and puts it in your .csproj … Read more

EF Core – How to create a database and a table

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In this article, I’ll show how to use EF Core to create a database with one table in it. At the end, I’ll show a standalone console app that inserts a record into this database. Note: I’ll be using SQL Server. I haven’t tried this with other database providers. Please leave a comment if you’re … Read more