Question

I’m not familiar with this encoding, what is it and how do I decode it in C#?

\u00257B\u002522target_id\u002522\u00253A\u002522p\u00257C29681347\u002522\u00252C+\u002522prop_id\u002522\u00253A\u0025222\u002522\u00252C+\u002522tid\u002522\u00253A\u0025221316132877\u002522\u00252C+\u002522

Answer 1

Assuming that it’s a C# string literal like this

string text = "\u00257B\u002522target_id\u002522\u00253A\u002522p...";

then you don’t need to decode it at all. It’s just a string literal that happens to contain an escape code.

The escape code \udddd (where dddd is a four-digit number) represents the Unicode character U+dddd. Eight-digit Unicode escape codes are also recognized: \Udddddddd.

So \u0025 represents the character %.

If you display the string, e.g.

Console.WriteLine(text);

you get the following output:

%7B%22target_id%22%3A%22p...

---

The output looks like an URL encoded string. You can decode it using the Uri.UnescapeDataString Method:

string decoded = Uri.UnescapeDataString(text);
// decoded == "{\"target_id\":\"p..."

If you display the decoded string

Console.WriteLine(decoded);

you get the following output:

{"target_id":"p...