Elrond serialization

index.js

// Import from erdjs SDK
import { AbiRegistry, BinaryCodec }  from "@elrondnetwork/erdjs";

// Our base64 response buffer that was queries
let buffer = Buffer.from("AAAACFNvbWUgaGF0AAAAClNvbWUgc2hpcnQAACMp", "base64");

// Load the main.abi.json into our program
let registry = await AbiRegistry.load({ files: ["main.abi.json"] });

// Get MyNFT struct from the registry
let type = registry.getStruct("MyNFT");

// Decode the base64 response using the MyNFT type
let result = (new BinaryCodec).decodeTopLevel(buffer, type).valueOf();

// Print the result
console.log(result);

lib.rs

#![no_std]

elrond_wasm::imports!();
elrond_wasm::derive_imports!();

#[derive(TopEncode, TopDecode, TypeAbi)]
pub struct MyNFT<M: ManagedTypeApi> {
    hat: ManagedBuffer<M>,
    shirt: ManagedBuffer<M>,
    rarity: i32
}

#[elrond_wasm::contract]
pub trait App {
    #[init]
    fn init(&self) {}

    #[view(my_nft)]
    fn my_nft(&self) -> MyNFT<Self::Api>
    {
       MyNFT {
           hat: ManagedBuffer::from(b"Some hat"),
           shirt: ManagedBuffer::from(b"Some shirt"),
           rarity: 9001,
       }
    }
}