Calling `dotnet user-jwts` while app is running causes malformed appsettings

[captainsafia]

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[DamianEdwards]

I experienced a malformed appsettings.Development.json when using dotnet user-jwts yesterday and I definitely ran the tool while the file was open in Visual Studio, and very possibly while the app was running (but not sure). The resulting errors from dotnet user-jwts weren't great either, as the JWT manipulations operations would actually succeed, but I'd get an error in the console like:

'}' is invalid after a single JSON value. Expected end of data. Path: $ | LineNumber: 20 | BytePositionInLine: 1.

We should likely look at handling JSON exceptions in the tool and displaying a more user-friendly error message.

[glen-84]

This seems to be happening even if the app isn't running.

[mikeblakeuk]

I found just having my json formatted to 4 spaces instead of 2 kills it

1. dotnet user-jwts create
2. format based on EditorConfig to 4 spacess instead of 2
3. dotnet user-jwts create
4. view json

{
  "Authentication": {
    "Schemes": {
      "Bearer": {
        "ValidAudiences": [
          "https://localhost:44310"
        ],
        "ValidIssuer": "dotnet-user-jwts"
      }
    }
  }
}r": "dotnet-user-jwts"
            }
        }
    }
}

[ci-vamp]

not sure if its related but it keeps removing one of my valid audiences whenever i run the command to generate a token. please dont push this out to dotnet 8. its unusable in its current state

note: this happens whether:

• API is running or stopped
• appsettings has 2 or 4 space indents

notice it deletes the valid audience and then it mangles the file (you can see the red underline at the top) right after i create the token

2 space

removing-valid-audience.mov

4 space

in the case of 4 space it edits the file, sets it to 2 space then mangles

removing-valid-audience-4space.mov