Tokens balance problems ERC1155 in Metamask
As a developer, it is frustrating when problems arise with the implementation and management of Token contracts. In this article, we will deepen the problem you face and provide step -by -step solutions to solve the problem of showing the balance of a Token ERC1155 in Metamask.
The problem:
When implementing a Token ERC1155 using the Openzeppelin ‘OpenzepePpelinerc1155, the balance is not correctly shown in the Metamask console. The error message could read:
`
Error: The balance cannot be determined
either
Error: You can't show balance
Solutions:
To solve this problem, you must adjust your code and update it to use the correct methods to show Token's balances.
- Update theBalveof
method:The function balancing is used to recover the balance of a specific account. To solve the problem, you must callBalancef (_account, _asset), where_accountand_assetare the address addresses and asset respectively.
`JavaScript
// Spdx-License identifier: mit
Import * as ERC1155 of '@Openzeppelin/ERC-1155';
Import {Contract} of 'Truffle-Contract';
const token = new erc1155 ('0x ...', {{
Totalsupply: 100,
});
Contract (ERC1155Token ') {
Async function implement () {
const _account = web3.eth accounts [0];
Wait token.dploy (_account);
}
ASYNC GETBALANCE FUNCTION (_ACCOUNT) {
const balance = wait token.balanceof (_accunt, '0x ...');
Return balance;
}
}
- Update thebalance
event:To show the balance of a specific asset, you must issue an 'event' with the right name and data.
JavaScript
// Spdx-License identifier: mit
Import * as ERC1155 of '@Openzeppelin/ERC-1155';
Import {Contract} of 'Truffle-Contract';
const token = new erc1155 ('0x ...', {{
Totalsupply: 100,
});
Contract (ERC1155Token ') {
Async function implement () {
const _account = web3.eth accounts [0];
Wait token.dploy (_account);
}
ASYNC GETBALANCE FUNCTION (_ACCOUNT) {
const balance = wait token.balanceof (_accunt, '0x ...');
Return balance;
}
}
Final step:
To show the balance of a specific asset in Metamk, you must add an event to your contract and update it accordingly.
JavaScript
// Spdx-License identifier: mit
Import * as ERC1155 of '@Openzeppelin/ERC-1155';
Import {Contract} of 'Truffle-Contract';
const token = new erc1155 ('0x ...', {{
Totalsupply: 100,
});
Contract (ERC1155Token ') {
Async function implement () {
const _account = web3.eth accounts [0];
Wait token.dploy (_account);
}
Event balance (_asset chain, _acount address);
ASYNC GETBALANCE FUNCTION (_ACCOUNT) {
const balance = wait token.balanceof (_accunt, '0x ...');
Issue event (_balance);
Return balance;
}
}
`
Following these steps and updating your code accordingly, you must be able to show the balance of a Token ERC1155 in Metamask.