I'm trying to create a token and its metadata using CPI (anchor lang). Everything works except verifying creators.
Transaction is first created in backend, on client side it is signed and backend signs right before sending the transaction. Both creators (backend, client) successfully sign the transaction. But when MPL token metadata is invoked, it asks You cannot unilaterally verify another creator, they must sign error.
How to properly provide signers using CPI?
Rust program:
pub fn create_some_tokens(
ctx: Context<CreateToken>,
name: String,
uri: String,
symbol: String,
creators: Vec<CreateTokenCreator>,
) -> Result<()> {
let signer_seeds: &[&[&[u8]]] = &[&[
b"metadata-update-authority",
&[ctx.bumps.metadata_update_authority],
]];
let data = DataV2 {
name,
uri,
symbol,
seller_fee_basis_points: 30_00,
creators: Some(
creators
.iter()
.map(|x| Creator {
address: x.address,
share: x.share,
verified: x.verified,
})
.collect(),
),
collection: None,
uses: None,
};
initialize_mint2(
CpiContext::new(
ctx.accounts.token_mint_program.to_account_info(),
InitializeMint2 {
mint: ctx.accounts.token_mint.to_account_info(),
},
),
0,
&ctx.accounts.token_mint_authority.key(),
Some(&ctx.accounts.freeze_authority.key()),
)?;
CreateMetadataAccountV3CpiBuilder::new(&ctx.accounts.mpl_token_metadata_program)
.update_authority(&ctx.accounts.metadata_update_authority, true)
.system_program(&ctx.accounts.system_program)
.payer(&ctx.accounts.payer)
.mint_authority(&ctx.accounts.token_mint_authority)
.mint(&ctx.accounts.token_mint)
.metadata(&ctx.accounts.token_metadata_account)
.is_mutable(true)
.data(data)
.add_remaining_accounts(&[
(&ctx.accounts.payer, true, true),
(&ctx.accounts.service_fee_recipient, false, true),
])
.invoke_signed(signer_seeds)?;
Ok(())
}
Transaction details from backend right before sending:
_json: {
recentBlockhash: 'EF2ekPhp9WiXghtAnHL88suydHKiMXMB7KKNJhyFTxXT',
feePayer: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
nonceInfo: null,
instructions: [
{
keys: [
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY',
isSigner: true,
isWritable: true
}
],
programId: '11111111111111111111111111111111',
data: [
0, 0, 0, 0, 96, 77, 22, 0, 0, 0, 0,
0, 82, 0, 0, 0, 0, 0, 0, 0, 6, 221,
246, 225, 215, 101, 161, 147, 217, 203, 225, 70, 206,
235, 121, 172, 28, 180, 133, 237, 95, 91, 55, 145,
58, 140, 245, 133, 126, 255, 0, 169
]
},
{
keys: [
{
pubkey: '8UEWSHNkix5fL3hPzmC1p7jScqR7uLFwWv4CKDkMUnnh',
isSigner: false,
isWritable: true
},
{
pubkey: 'DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY',
isSigner: true,
isWritable: true
},
{
pubkey: 'GwqxCtj42vv12gRTs3rAV1A2a5dBnAJZ8zmNcE19ELxY',
isSigner: false,
isWritable: true
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
},
{
pubkey: 'EmEbYbmAJKJZ15bb8zfXdszZdJ2a1MV6gWEw8Rr3nVFr',
isSigner: false,
isWritable: true
},
{
pubkey: 'FiLhF9CatW4HvwcY9Ly25fCwPQho4MAYSzqZLwMFPiEH',
isSigner: false,
isWritable: false
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: '8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
isSigner: true,
isWritable: true
},
{
pubkey: '11111111111111111111111111111111',
isSigner: false,
isWritable: false
},
{
pubkey: 'metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s',
isSigner: false,
isWritable: false
}
],
programId: 'BN542RvJA1bg8nZ5qmDVp3MuDJgovXQiH1fbtqUT8YkR',
data: [
65, 40, 218, 29, 41, 58, 145, 108, 7, 0, 0, 0,
87, 82, 73, 84, 84, 69, 78, 51, 0, 0, 0, 104,
116, 116, 112, 58, 47, 47, 108, 111, 99, 97, 108, 104,
111, 115, 116, 58, 51, 48, 48, 49, 47, 97, 112, 105,
47, 118, 49, 47, 116, 111, 107, 101, 110, 115, 47, 105,
110, 102, 111, 47, 78, 84, 71, 110, 81, 90, 118, 104,
118, 110, 4, 0, 0, 0, 87, 82, 84, 78, 2, 0,
0, 0, 87, 115, 220, 155, 118, 202, 201, 224, 66, 38,
84, 92, 193, 208,
... 54 more items
]
},
{
keys: [
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'GwqxCtj42vv12gRTs3rAV1A2a5dBnAJZ8zmNcE19ELxY',
isSigner: false,
isWritable: true
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY',
isSigner: true,
isWritable: true
},
{
pubkey: '11111111111111111111111111111111',
isSigner: false,
isWritable: false
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
}
],
programId: 'ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL',
data: [ 1 ]
},
{
keys: [
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'B3jM5ycV6USQQjBe89s49tbrM4gBhY9vmVt89TjgdGBb',
isSigner: false,
isWritable: true
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'So11111111111111111111111111111111111111112',
isSigner: false,
isWritable: false
},
{
pubkey: '11111111111111111111111111111111',
isSigner: false,
isWritable: false
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
}
],
programId: 'ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL',
data: [ 1 ]
},
{
keys: [
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: '2wa3wiYPwtoGhceSPQWsMGDkHDcCyip7ejc2T1qWisLn',
isSigner: false,
isWritable: true
},
{
pubkey: '8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
isSigner: true,
isWritable: true
},
{
pubkey: 'So11111111111111111111111111111111111111112',
isSigner: false,
isWritable: false
},
{
pubkey: '11111111111111111111111111111111',
isSigner: false,
isWritable: false
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
}
],
programId: 'ATokenGPvbdGVxr1b2hvZbsiqW5xWH25efTNsLJA8knL',
data: [ 1 ]
},
{
keys: [
{
pubkey: '8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
isSigner: true,
isWritable: true
},
{
pubkey: '8UEWSHNkix5fL3hPzmC1p7jScqR7uLFwWv4CKDkMUnnh',
isSigner: false,
isWritable: true
},
{
pubkey: 'DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY',
isSigner: true,
isWritable: true
},
{
pubkey: 'GwqxCtj42vv12gRTs3rAV1A2a5dBnAJZ8zmNcE19ELxY',
isSigner: false,
isWritable: true
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
},
{
pubkey: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
isSigner: false,
isWritable: false
},
{
pubkey: 'So11111111111111111111111111111111111111112',
isSigner: false,
isWritable: false
},
{
pubkey: '6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
isSigner: true,
isWritable: true
},
{
pubkey: 'B3jM5ycV6USQQjBe89s49tbrM4gBhY9vmVt89TjgdGBb',
isSigner: false,
isWritable: true
},
{
pubkey: '8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
isSigner: true,
isWritable: true
},
{
pubkey: '2wa3wiYPwtoGhceSPQWsMGDkHDcCyip7ejc2T1qWisLn',
isSigner: false,
isWritable: true
},
{
pubkey: 'Bv73VNJdvzJvVcvw3Rpf5hof2FgwCa8GxEE99UWRqrBD',
isSigner: false,
isWritable: true
},
{
pubkey: '11111111111111111111111111111111',
isSigner: false,
isWritable: false
},
{
pubkey: '8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
isSigner: true,
isWritable: true
}
],
programId: 'BN542RvJA1bg8nZ5qmDVp3MuDJgovXQiH1fbtqUT8YkR',
data: [
167, 6, 157, 184, 126, 21, 170,
171, 1, 0, 0, 0, 0, 0,
0, 0, 9
]
}
],
signers: [
'6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3',
'8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb',
'DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY'
]
}
}
6tNwRrMUC6xsmwzig9NNqoSVRDZ1N7nBusCDNGtAnbm3 is client side wallet, 8baMHRmtq5fbXeYcpUdoHqSEFQe4GEa8mfvc9qWxXntb is backend side wallet, DYsFEpDiT52AXZASecVRkd9dyN6icmKfpVqncKAzRJNY is token is being minted.
