import { Client, AccountId, PrivateKey } from "@hiero-ledger/sdk";

const client = Client.forName(process.env.HEDERA_NETWORK)
    .setOperator(
        AccountId.fromString(process.env.OPERATOR_ID),
        PrivateKey.fromStringECDSA(process.env.OPERATOR_KEY),
    );

import { Wallet, LocalProvider } from "@hiero-ledger/sdk";

const provider = new LocalProvider();
const wallet = new Wallet(process.env.OPERATOR_ID, process.env.OPERATOR_KEY, provider);

const tx = await new SomeTransaction()
    .setSomeField(value)
    .freezeWith(client);   // locks the transaction body

await tx.sign(privateKey); // add signatures (call multiple times for multi-sig)

const response = await tx.execute(client);
const receipt = await response.getReceipt(client);

const response = await new SomeTransaction()
    .setSomeField(value)
    .execute(client);
const receipt = await response.getReceipt(client);

import {
    TokenCreateTransaction, TokenType, TokenSupplyType,
    PrivateKey, Hbar,
} from "@hiero-ledger/sdk";

const supplyKey = PrivateKey.generateECDSA();

const { tokenId } = await (
    await new TokenCreateTransaction()
        .setTokenName("My Token")
        .setTokenSymbol("MTK")
        .setDecimals(2)
        .setInitialSupply(10000)
        .setTreasuryAccountId(operatorId)
        .setAdminKey(operatorKey)
        .setSupplyKey(supplyKey)
        .execute(client)
).getReceipt(client);

const { tokenId: nftId } = await (
    await new TokenCreateTransaction()
        .setTokenName("My NFT Collection")
        .setTokenSymbol("MNFT")
        .setTokenType(TokenType.NonFungibleUnique)
        .setSupplyType(TokenSupplyType.Finite)
        .setMaxSupply(1000)
        .setTreasuryAccountId(treasuryId)
        .setAdminKey(adminKey)
        .setSupplyKey(supplyKey)
        .execute(client)
).getReceipt(client);

import { TokenMintTransaction } from "@hiero-ledger/sdk";

// Fungible — specify amount
await new TokenMintTransaction()
    .setTokenId(tokenId)
    .setAmount(500)
    .execute(client);

// NFT — specify metadata per serial
const { serials } = await (
    await new TokenMintTransaction()
        .setTokenId(nftId)
        .addMetadata(Buffer.from("ipfs://QmFirst..."))
        .addMetadata(Buffer.from("ipfs://QmSecond..."))
        .execute(client)
).getReceipt(client);
// serials = [Long(1), Long(2)]

import { TokenAssociateTransaction } from "@hiero-ledger/sdk";

await (
    await (
        await new TokenAssociateTransaction()
            .setAccountId(recipientId)
            .setTokenIds([tokenId])
            .freezeWith(client)
    ).sign(recipientKey)      // account owner must sign
).execute(client);

import { TransferTransaction } from "@hiero-ledger/sdk";

// Fungible transfer
await new TransferTransaction()
    .addTokenTransfer(tokenId, senderId, -100)
    .addTokenTransfer(tokenId, receiverId, 100)
    .execute(client);

// NFT transfer (tokenId, serial, sender, receiver)
await new TransferTransaction()
    .addNftTransfer(nftId, 1, senderId, receiverId)
    .execute(client);

// Mix Hbar + token transfers in one transaction
await new TransferTransaction()
    .addHbarTransfer(senderId, new Hbar(-5))
    .addHbarTransfer(receiverId, new Hbar(5))
    .addTokenTransfer(tokenId, senderId, -50)
    .addTokenTransfer(tokenId, receiverId, 50)
    .execute(client);

// Grant KYC (required when token has kycKey)
await new TokenGrantKycTransaction()
    .setTokenId(tokenId).setAccountId(accountId).execute(client);

// Freeze an account
await new TokenFreezeTransaction()
    .setTokenId(tokenId).setAccountId(accountId).execute(client);

// Unfreeze
await new TokenUnfreezeTransaction()
    .setTokenId(tokenId).setAccountId(accountId).execute(client);

// Wipe tokens from an account
await new TokenWipeTransaction()
    .setTokenId(tokenId).setAccountId(accountId).setAmount(10).execute(client);

// Pause all transfers
await new TokenPauseTransaction().setTokenId(tokenId).execute(client);

// Unpause
await new TokenUnpauseTransaction().setTokenId(tokenId).execute(client);

import { TokenBurnTransaction, TokenDeleteTransaction } from "@hiero-ledger/sdk";

// Burn fungible
await new TokenBurnTransaction()
    .setTokenId(tokenId).setAmount(100).execute(client);

// Burn NFT serials
await new TokenBurnTransaction()
    .setTokenId(nftId).setSerials([1, 2]).execute(client);

// Delete entire token (requires adminKey)
await new TokenDeleteTransaction()
    .setTokenId(tokenId).execute(client);

import { TokenInfoQuery, TokenNftInfoQuery, NftId } from "@hiero-ledger/sdk";

const info = await new TokenInfoQuery().setTokenId(tokenId).execute(client);
console.log(info.name, info.symbol, info.totalSupply.toString());

const nftInfo = await new TokenNftInfoQuery()
    .setNftId(new NftId(nftId, 1))
    .execute(client);
console.log(nftInfo.accountId.toString()); // current owner

import {
    TokenAirdropTransaction, TokenClaimAirdropTransaction,
    TokenCancelAirdropTransaction, TokenRejectTransaction, NftId,
} from "@hiero-ledger/sdk";

// Send airdrop
const record = await (
    await (
        await new TokenAirdropTransaction()
            .addTokenTransfer(tokenId, treasuryId, -300)
            .addTokenTransfer(tokenId, recipient1, 100)
            .addTokenTransfer(tokenId, recipient2, 100)
            .addTokenTransfer(tokenId, recipient3, 100)
            .addNftTransfer(nftId, 1, treasuryId, recipient1)
            .freezeWith(client)
            .sign(treasuryKey)
    ).execute(client)
).getRecord(client);

// Check pending airdrops
const { newPendingAirdrops } = record;

// Recipient claims a pending airdrop
await (
    await new TokenClaimAirdropTransaction()
        .addPendingAirdropId(newPendingAirdrops[0].airdropId)
        .freezeWith(client)
        .sign(recipientKey)
).execute(client);

// Sender cancels a pending airdrop
await new TokenCancelAirdropTransaction()
    .addPendingAirdropId(newPendingAirdrops[1].airdropId)
    .execute(client);

// Recipient rejects tokens they already received
await (
    await new TokenRejectTransaction()
        .setOwnerId(recipientId)
        .addTokenId(tokenId)           // reject fungible
        .addNftId(new NftId(nftId, 1)) // reject NFT
        .freezeWith(client)
        .sign(recipientKey)
).execute(client);

import {
    CustomFixedFee, CustomFractionalFee, CustomRoyaltyFee, Hbar,
} from "@hiero-ledger/sdk";

const fixedFee = new CustomFixedFee()
    .setFeeCollectorAccountId(collectorId)
    .setHbarAmount(new Hbar(1));

const fractionalFee = new CustomFractionalFee()
    .setFeeCollectorAccountId(collectorId)
    .setNumerator(1).setDenominator(100)  // 1%
    .setMin(1).setMax(1000);

const royaltyFee = new CustomRoyaltyFee()
    .setFeeCollectorAccountId(collectorId)
    .setNumerator(5).setDenominator(100)  // 5%
    .setFallbackFee(
        new CustomFixedFee().setHbarAmount(new Hbar(2))
    );

await new TokenCreateTransaction()
    .setCustomFees([fixedFee, fractionalFee])
    // ... other fields
    .execute(client);