What do @ and $ do in a Serilog message template parameter?

Question

I found some code with log parameters that use the @ sign in front of the name.
logger.LogError(ex, "Failed to add {@data}", jsonData)

I'm having trouble finding the docs for what this does exactly. The Serilog doc says this:

Property names may be prefixed with an optional operator, @ or $, to control how the property is serialised

But it doesn't say what that will do. How does {@data} differ from {data} in a log message template?

Answer 1

There is some documentation on these operators here (also accessible via serilog.net).

• @ is the destructuring operator
• $ is the stringification operator