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ServiceStack does not escape control characters in JSON

ServiceStack's JsonSerializer does not seem to encode control characters correctly.

For example, this C# expression....

JsonSerializer.SerializeToString(new { Text = "\u0010" })

... evaluates to this...

{"Text":"?"}

... where the "?" is the literal control character.

Instead, according to http://www.json.org it should evaluate to this:

{"Text":"\u0010"}

Is this a known bug or am I missing something?

The bad JSON output by my services is causing errors during deserialization by my service consumers.

Solution

  • You need to tell the serializer to escape unicode characters.

    JsConfig.EscapeUnicode = true;
JsonSerializer.SerializeToString(new{Text = "\u0010"});

    The above evaluates to this:

    {"Text":"\u0010"}