Hedera Wallet Snap connects to your currently connected Metamask account by default. To learn how apps can connect to Hedera Wallet Snap using a non-metamask(external) account, refer to this documentation.
Then, depending on whether you're trying to connect to a metamask account or a non-metamask account, you can call the snap API in the following way:
const snapId = `npm:@hashgraph/hedera-wallet-snap`
const mintTokenAPI= async () => {
const externalAccountParams = {
externalAccount: {
accountIdOrEvmAddress: '0.0.12345',
curve: 'ED25519'
}
}
await window.ethereum.request({
method: 'wallet_invokeSnap',
params: {
snapId,
request: {
method: 'hts/mintToken',
params: {
network: 'testnet',
assetType: 'TOKEN', // TOKEN | NFT
tokenId: '0.0.4279119',
amount: 100,
metadata?, // Optional param - only needed for NFT
/*
Uncomment the below line if you want to connect
to a non-metamask account
*/
// ...externalAccountParams
}
}
}
})
}
Retrieves the currently connected account the user has selected on Metamask. If it's the first time, a new snap account is created and the account info is saved in snap state.
Parses the arguments that were passed such as the tokenId, amount, etc.
Calls the Hedera SDK Mint Token API to mint new tokens for both fungible and non-fungible token (NFT) types, thereby increasing the total supply of the specified token. The new tokens are sent to the treasury account.
This action cannot be called if this token was created without passing the supplyPublicKey
parameter. Furthermore, this action must also be called using the same public key account.
Returns the transaction receipt as response
An example response:
{
"currentAccount": {
"metamaskEvmAddress": "0x0b3628d1b838993b5fceec8b2a26502e7a8e5241",
"externalEvmAddress": "",
"hederaAccountId": "0.0.3581604",
"hederaEvmAddress": "0xca53f9c93d30e0b7212d67901e5a24fb090d542b",
"publicKey": "0x0206022cea4c6dd6d2e7263b8802253971de922f5380661d97cba82dee66f57ad6",
"balance": {
"hbars": 97.40784469,
"timestamp": "Thu, 25 Apr 2024 18:05:05 GMT",
"tokens": {
"0.0.4279119": {
"balance": 0,
"decimals": 1,
"tokenId": "0.0.4279119",
"name": "Tuum",
"symbol": "TUUM",
"tokenType": "FUNGIBLE_COMMON",
"supplyType": "INFINITE",
"totalSupply": "0",
"maxSupply": "0"
}
}
},
"network": "testnet",
"mirrorNodeUrl": "https://testnet.mirrornode.hedera.com"
},
"receipt": {
"status": "SUCCESS",
"accountId": "",
"fileId": "",
"contractId": "",
"topicId": "",
"tokenId": "",
"scheduleId": "",
"exchangeRate": {
"hbars": 30000,
"cents": 358240,
"expirationTime": "Thu, 25 Apr 2024 19:00:00 GMT",
"exchangeRateInCents": 11.941333333333333
},
"topicSequenceNumber": "0",
"topicRunningHash": "",
"totalSupply": "1000",
"scheduledTransactionId": "",
"serials": [],
"duplicates": [],
"children": []
}
}