javascript - .NET MVC deserialize byte array from JSON Uint8Array

Question

I'm using js-scrypt (https://github.com/tonyg/js-scrypt) on my client-side web application to hash and salt passwords before posting them to my server-side .NET MVC application to be hashed and salted again. This JavaScript library implements byte arrays as JavaScript Uint8Arrays. How do I get my MVC Controller to deserialize my JSON Uint8Array to a byte[]?

JavaScript Example: (AJAX.Post is a library I wrote, myUint8Array serializes properly)

AJAX.Post('www.example.com/SendByteArray', { myByteArray: myUint8Array }, Callback);

C# Example: (In my default controller)

[HttpPost]
public async Task<JsonResult> SendByteArray(byte[] myByteArray) {

}

In this example myByteArray is always null. I've tried a couple different approaches based on converting to strings and then back to a byte[] but I haven't been able to get the correct value. It would be greatly preferred if I could somehow implement the code into .NET's JSON deserializer directly so that the code above works exactly as is, because I have a few other projects where I could do some cool things if I could pass byte arrays directly between the server-side and client-side applications.

Answer 1

For now the only method I could get to work was to base64 encode the Uint8Array, capture it as a string in C#, and then convert that string to a byte[].

JavaScript:

AJAX.Post('www.example.com/SendByteArray', { strByteArray: btoa(String.fromCharCode.apply(null, myUint8Array)) }, Callback);

C#:

[HttpPost]
public async Task<JsonResult> SendByteArray(string strByteArray) {
    byte[] myByteArray = Convert.FromBase64String(strByteArray);
}