---
title: createSmartContract
---
# createSmartContract <TitleWithCodeLink2 link="createSmartContract" />

Create an unsigned transaction that deploys smart contract.

## Usage

```javascript
const options = {
  feeLimit: 1000000000, // The maximum TRX burns for resource consumption（1TRX = 1,000,000SUN）
  callValue: 0, // The TRX transfer to the contract for each call（1TRX = 1,000,000SUN）
  tokenId: '', // The id of TRC10 token transfer to the contract (Optional)
  tokenValue: 0, // The amount of TRC10 token transfer to the contract for each call (Optional)
  userFeePercentage: 10, // Consume user's resource percentage. It should be an integer between [0, 100]. if 0, means it does not consume user's resource until the developer's resource has been used up
  originEnergyLimit: 10, // The maximum resource consumption of the creator in one execution or creation
  abi: '{"entrys":[{"constant":true,"inputs":[{"name":"","type":"bytes3[2]"}],"name":"bar","outputs":[],"payable":false,"stateMutability":"pure","type":"function"}]}', // Abi string
  bytecode:
    '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', // Bytecode, default hexString
  parameters: [], // The list of the parameters of the constructor, It should be converted hexString after encoded according to ABI encoder. If constructor has no parameter, this can be optional
  name: 'Foo', // Contract name string
  permissionId: 2, // Optional, for multi-signature
  blockHeader: {...} // Optional, for contract block header info.
};
const transaction = await tronWeb.transactionBuilder.createSmartContract(options, issuerAddress);
```

## Parameters

| Argument      | Description                        | Type              |
| ------------- | ---------------------------------- | ----------------- |
| options       | Options to create smart contract   | See above example |
| issuerAddress | Address of issuer in hex or base58 | string            |

## Returns

Unsigned transaction object.

## Example

```javascript
const options = {
  feeLimit: 1000000000,
  callValue: 0,
  tokenId: "",
  tokenValue: 0,
  userFeePercentage: 10,
  originEnergyLimit: 10,
  abi: [{"constant":true,"inputs":[{"name":"","type":"bytes3[2]"}],"name":"bar","outputs":[],"payable":false,"stateMutability":"pure","type":"function"}],
  bytecode: "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",
  name: "Foo",
  permissionId: 2
};
const transaction = await tronWeb.transactionBuilder.createSmartContract(options,"41BF97A54F4B829C4E9253B26024B1829E1A3B1120");
console.log(transaction);
// output-start
{
  visible: false,
  txID: '6c3b978b0971bf4692411d73f5cc90c43016540fd43e606d5d07e28e494e4a1d',
  contract_address: '412b676c1e8d4905de6e3b2a8b807aa09ab298e153',
  raw_data: {
    contract: [ [Object] ],
    ref_block_bytes: 'caa6',
    ref_block_hash: 'f58a2b9828611d88',
    expiration: 1581062694000,
    fee_limit: 1000000000,
    timestamp: 1581062634939
  },
  raw_data_hex: '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'
}
// output-end
```


When SmartContract's constructor has tuple type parameter, funcABIV2 argument and parametersV2 argument are required.
For example: 
``` javascript
const transaction = await tronWeb.transactionBuilder.createSmartContract(
    {
        abi: abi,
        bytecode: bytecode,
        funcABIV2: abi.find((abi) => abi.type === 'constructor'),
        parametersV2: [[1, 2, 3]],
    }
);
```