CODEWITHSUNDEEP
c#c++jsonjson.netconverters
dcube9
dcube9

Reputation: 25

How deserialize a json string of a byte[] in c++ unmanaged code a Json?

In a unmanaged C++ program have to deserialize a json read by tcp from a server.

SERVER SIDE (made in C#) :

public class DUMMY
{
    public byte[] BinaryContent { get; set; }
}

... inside a http get controller ...
DUMMY d = new DUMMY();
d.BinaryContent = new byte[] { 0x00, 0x00 }; // 0x00 is a sample, in real it contains a binary file
string sd = JsonConvert.SerializeObject(d);
return sd;

CLIENT SIDE (made in C++ unmanaged) http-get read :

{ "BinaryContent" : "AAA=" }

The problem is how to deserialize it ?

How convert "AAA=" to a 0x0000 ?

2nd Examples : IF SERVER send { 0xFF, 0xFF } string received is "ERE=".

Upvotes: 0

Views: 544

Answers (1)

TheUndeadFish
TheUndeadFish

Reputation: 8171

That's Base64 encoding. https://en.wikipedia.org/wiki/Base64

It's a way that can represent arbitrary bytes using only the ASCII character set.

You'll presumably want to find a library that can decode a Base64 string and give you back the bytes it represents. (Or it's possible to write that algorithm yourself, but I don't recommend it.)

Upvotes: 3

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