mpl-token-metadata

Question

I am trying to update NFT metadata using mpl-token-metadata 5.1.0. But I can't find the function like update_metadata_accounts_v2() in docs. I am using anchor version 0.29.0, Solana-cli 1.18.16, mpl-token-metadata 5.1.0. Where can I get resource for this work? Thank you.

Answer 1

You can check out all available instructions in the docs, via https://docs.rs/mpl-token-metadata/latest/mpl_token_metadata/instructions/index.html

In particular, you are interested in the UpdateAsUpdateAuthorityV2 instruction builder

 pub fn update_metadata(
        ctx: Context<UpdateMetadata>,
        name: String,
        symbol: String,
        uri: String,
        seller_fee_basis_points: u16,
    ) -> Result<()> {
        let data = Data {
            name,
            symbol,
            uri,
            seller_fee_basis_points,
            creators: None, //! update with creators if needed
        };

        UpdateAsUpdateAuthorityV2CpiBuilder::new(&ctx.accounts.metadata_program.to_account_info())
            .authority(&ctx.accounts.authority.to_account_info())
            .mint(&ctx.accounts.mint.to_account_info())
            .metadata(&ctx.accounts.metadata_account)
            .payer(&ctx.accounts.authority)
            .system_program(&ctx.accounts.system_program)
            .sysvar_instructions(&ctx.accounts.sysvar_instruction.to_account_info())
            .data(data)
            .invoke()?;

        Ok(())
    }

Accounts required for this

#[derive(Accounts)]
pub struct UpdateMetadata<'info> {
    #[account(mut)]
    pub authority: Signer<'info>,

    #[account(mut)]
    pub mint: Account<'info, Mint>,

    /// CHECK:
    #[account(mut)]
    pub metadata_account: Account<'info, MetadataAccount>,

    pub metadata_program: Program<'info, Metadata>,
    pub token_program: Program<'info, Token>,
    pub system_program: Program<'info, System>,
    /// CHECK: ok
    pub sysvar_instruction: UncheckedAccount<'info>,
}

ref: https://docs.rs/mpl-token-metadata/latest/mpl_token_metadata/instructions/struct.UpdateAsUpdateAuthorityV2CpiBuilder.html

edit: removed data being passed in as struct and using parameters defined in the Data struct