Freezing assets

Authorized by: Asset Freeze Address

Freezing or unfreezing an asset for an account requires a transaction that is signed by the freeze account. The code below illustrates the freeze transaction.

Python

sp = algod_client.suggested_params()
# Create freeze transaction to freeze the asset in acct2 balance
freeze_txn = transaction.AssetFreezeTxn(
    sender=acct1.address,
    sp=sp,
    index=created_asset,
    target=acct2.address,
    new_freeze_state=True,
)
signed_freeze_txn = freeze_txn.sign(acct1.private_key)
txid = algod_client.send_transaction(signed_freeze_txn)
print(f"Sent freeze transaction with txid: {txid}")

results = transaction.wait_for_confirmation(algod_client, txid, 4)
print(f"Result confirmed in round: {results['confirmed-round']}")

JavaScript

const freezeTxn = algosdk.makeAssetFreezeTxnWithSuggestedParamsFromObject({
  from: manager.addr,
  suggestedParams,
  assetIndex,
  // freezeState: false would unfreeze the account's asset holding
  freezeState: true,
  // freezeTarget is the account that is being frozen or unfrozen
  freezeTarget: receiver.addr,
});

const signedFreezeTxn = freezeTxn.signTxn(manager.privateKey);
await algodClient.sendRawTransaction(signedFreezeTxn).do();
await algosdk.waitForConfirmation(
  algodClient,
  freezeTxn.txID().toString(),
  3
);

Goal

goal asset freeze --freezer <asset-freeze-account> --freeze=true --account <account-to-freeze> --creator <asset-creator> --asset <asset-name> -d data

See also

• Anatomy of an Asset Freeze Transaction