Solana: Where to find the latest Rust metaplex syntax for adding metadata to an spl token?

I can provide you with an article on how to add metadata to SPL (Solana Token) using Rust and Metaplex.

Adding Metadata to Spl Tokens with Rust and Metaplex

In this article, we will explore how to add metadata to Solana tokens using Rust and the Metaplex protocol. This is especially useful for creating non-fungible assets that require unique identifiers or ownership information.

Prerequisites

Before you begin, make sure you have the following installed:

• Rust (version 1.62 or later)

• Metaplex (version 0.9.0 or later)

You can install them using Cargo, the Rust package manager:

cargo install --dev solana-sdk

Setting up a Solana node

To use Metaplex with your Solana node, you will need to set one up. Here’s how:

• Install the solana-cli package and create a new Solana account on the CLI:

solana login

• Create a new program using the solana-program package:

solana program new my_program --rust-sdk-version=1.62 --type Program Rust

Creating a new token

Let’s create a new token with some metadata:

my_token.rs

use solana_program::{
account_info::next_account_info,
entrypoint::ProgramResult,
msg,
};
use std::hash::{Hash, Hasher};
pub struct MyToken {
pub id: u64,
pub name: String,
pub description: String,
}
impl MyToken {
pub fn new(id: u64, name: String, description: String) -> Self {
Self { id, name, description }
}
pub fn to_account_info(&self) -> AccountInfo {
AccountInfo::new(
self.id like u128,
&self.name.to_bytes(),
&self.description.to_bytes(),
)
}
}
impl std::fmt::Display for MyToken {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{} ({})", self.id, self.name)
}
}

Creating a metadata structure

Let’s create a new structure to hold our token’s metadata:

use solana_program::{
account_info::{ next_account_info, AccountInfo },
entrypoint::ProgramResult,
msg,
};
use std::hash::{Hash, Hasher};
pub struct Metadata {
pub id: u64,
pub name: String,
pub description: String,
}
impl Metadata {
pub fn new(id: u64, name: String, description: String) -> Self {
Self { id, name, description }
}
pub fn to_account_info(&self) -> AccountInfo {
AccountInfo::new(
self.id as u128,
&self.name.to_bytes(),
&self.description.to_bytes(),
)
}
}

Creating a Metadata Structure from a Solana Program

Now let’s create a new program that generates metadata for our token:

“`rust

use solana_program::{

account_info::next_account_info,

entrypoint::ProgramResult,

msg,

};

use std::hash::{Hash, Hasher};

pub struct MetadataGenerator {

pub id: u64,

}

impl MetadataGenerator {

pub fn new(id: u64) -> Self {

Self { id }

}

pub fn generate_metadata(&self, metadata: &Metadata) -> ProgramResult {

let account_info = next_account_info();

let metadata_struct = Metadata::new(self.id, metadata.name.clone(), metadata.description.clone());

msg!(“Generating metadata for token {}”, self.id);

// Store metadata in a Solana register

// For now, we’ll just print it

println!(“Generated metadata: {:?}”, metadata_struct.