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Your issuer wallet holds the keys that control your token. Create one to get started, or restore an existing wallet with your mnemonic.
Issuer Wallet

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Create a Wallet

import { IssuerSparkWallet } from "@buildonspark/issuer-sdk";

const { wallet, mnemonic } = await IssuerSparkWallet.initialize({
  options: { network: "REGTEST" }
});

console.log("Backup this phrase:", mnemonic);
console.log("Your address:", await wallet.getSparkAddress());
Store the mnemonic securely. It’s the only way to recover your wallet.

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Restore a Wallet

const { wallet } = await IssuerSparkWallet.initialize({
  mnemonicOrSeed: "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
  options: { network: "MAINNET" }
});

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Networks

NetworkUse
REGTESTDevelopment and testing
MAINNETProduction
Start on REGTEST. When you’re ready for production, generate a fresh wallet on MAINNET.

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Multiple Tokens

An issuer identity can create multiple tokens. Use getIssuerTokenIdentifiers() and getIssuerTokenBalances() to work with all of them. If you want separate issuer identities (separate keys) from the same mnemonic, derive them with different account numbers: 
const { wallet: tokenA } = await IssuerSparkWallet.initialize({
  mnemonicOrSeed: "your mnemonic...",
  accountNumber: 0,
  options: { network: "REGTEST" }
});

const { wallet: tokenB } = await IssuerSparkWallet.initialize({
  mnemonicOrSeed: "your mnemonic...",
  accountNumber: 1,
  options: { network: "REGTEST" }
});

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Cleanup

Close connections when your app shuts down: 
await wallet.cleanupConnections();