justdmitry / tonlib.net Goto Github PK

Please support of TON storage-daemon
Thanks.

First of all, thank you for creating a library for C#.
It would be great to be able to work with private keys without importing them into the storage.
Like here
https://github.com/xssnick/tonutils-go/blob/master/ton/wallet/wallet.go#L430

Hello! Thank you for your excellent library.

I'm trying to pull Jetton Master data, I am using the reference specification to assist me: https://github.com/ton-blockchain/TEPs/blob/master/text/0064-token-data-standard.md#specification

I have the following example:

First, I pull the get_jetton_data:

Info smcRouter = await _ton.TrySmcLoad(Address);
var result = await _ton.SmcRunGetMethod(smcRouter.Id, new MethodIdName("get_jetton_data"));

var stack = result.Stack.ToArray();

var totalSupply = stack[0].ToBigInteger();
var mintable = stack[1].ToBigInteger();
var adminAddress = stack[2].GetAddress();
var metadataCell = stack[3].ToBoc().RootCells[0];

Then, I want to deserialize the metadata cell to it's components, however I'm struggling to see how to do this.

Initially I want to decompose it to first grab the Decimals, where the case is there are onchain properties for, I am using this jUSDT token to test this:

https://tonscan.com/EQBynBO23ywHy_CgarY9NK9FTz0yDsG82PtcbSTQgGoXwiuA?tab=methods

This reports the following for jetton_content:

{
  "type": "onchain",
  "data": {
    "image": "https://bridge.ton.org/token/1/0xdac17f958d2ee523a2206206994597c13d831ec7.png",
    "uri": "https://bridge.ton.org/token/1/0xdac17f958d2ee523a2206206994597c13d831ec7.json",
    "decimals": "6"
  }
}

Now I want to deserialize my metadataCell into a dictionary for me to extract the above representation, but I can't see how to do this. I can call LoadDict on the cell, which it should be, I get back a Cell.
I then use the specification referenced for Token Data, that the key should be a SHA256 as a string, and the value should be serialized later (so I pull the Slice). This isn't working for me and fails to deserialize the dictionary (No dictionary found).

public static Metadata ParseFromCell(Cell cell)
{
    const int OnchainContent = 0;
    const int OffchainContent = 1;

    var slice = cell.BeginRead();
    var contentType = slice.LoadByte();

    if(contentType != OnchainContent)
        throw new Exception("Unsupported representation type");

    var dict = slice.LoadDict();
    var output = dict.BeginRead().LoadAndParseDict<string, TonLibDotNet.Cells.Slice>(
        256,
        x => x.LoadString()!,
        x => x,
        new StringComparer());

    return new Metadata();
}

Do you have any suggestions on how I can get this deserialized correctly, or at least get a reference to a Dictionary<TKey,TValue> for me to take this further?