Hiding connection strings and secrets

[cilerler]

While working with a polyglot notebook, it’s necessary to avoid displaying the SQL database connection string.
Directly storing it in a variable reveals it in the variable list. How can this string be safely concealed?

Additionally, can the same approach be used to protect other sensitive secrets as well?

#!meta

{"kernelInfo":{"defaultKernelName":"csharp","items":[{"aliases":[],"languageName":"csharp","name":"csharp"},{"aliases":[],"languageName":"T-SQL","name":"sql-Integration_MyCompany"}]}}

#!markdown

## Load environment variables

#!markdown

More info about **dotnet-interactive** can be found [here](https://github.com/dotnet/interactive/blob/main/docs/FAQ.md)

#!csharp

// #r "nuget: DotNetEnv,*-*"
// DotNetEnv.Env.Load();
// System.Environment.GetEnvironmentVariable("message_from_env_file").Display();

#!markdown

## Load SQL Library

#!csharp

#r "nuget:Microsoft.DotNet.Interactive.SqlServer,*-*"
var connectionString = System.Environment.GetEnvironmentVariable("integration_smartpocure_sql");

#!csharp

#!connect mssql --kernel-name Integration_MyCompany --connection-string @connectionString

#!markdown

### All records

#!markdown

#!sql-Integration_MyCompany

select * from dbo.states