---
title: tronweb.contract().new()
---
# tronweb.contract().new() <TitleWithCodeLink2 link="new" />

Deploy a smart contract.

## Usage

``` javascript
let abi = 'some abi for contract';
let code = 'bytecode';
async function deploy_contract(){
  let contract_instance = await tronWeb.contract().new({
    abi:JSON.parse(abi),
    bytecode:code,
    feeLimit:1000000000,
    callValue:0,
    userFeePercentage:1,
    originEnergyLimit:10000000,
    parameters:[param1, param2, param3,...]
  });
  console.log(contract_instance.address);
}
```

## Parameters
|Parameter|Description|Data Type|Option|
|-------------------|-----------------|-----------------|-----------------|
|abi|Smart Contract\'s String Application Binary Interface.| Array |Required|
|bytecode|The compiled contract\'s identifier, used to interact with the Virtual Machine.|String|Required|
|feeLimit|The maximum SUN consumes by deploying this contract. (1TRX = 1,000,000SUN)|Integer, long|Optional|
|callValue|Amount of SUN transferred to the contract with this transaction.(1TRX = 1,000,000SUN)|Integer|Optional|
|userFeePercentage|The energy consumption percentage specified for the user calling this contract.|Integer between 0 and 100|Optional|
|originEnergyLimit|The max energy which will be consumed by the owner in the process of execution or creation of the contract, is an integer which should be greater than 0.|Integer|Optional|
|parameters|Parameter passed to the constructor of the contract. | Array|Optional, required if constructor needs parameters|

**Important Note:** for the `userFeePercentage` parameter, it is **strongly recommended** to set the integer value between 1 and 99 (inclusive). Setting as 0 could potentially open the contract developer up to an infinite loop time-out attack.

## Returns

Object - The contract instance.

## Example

``` javascript
let abi = 'some abi for contract';
let code = 'bytecode';
async function deploy_contract(){
  let contract_instance = await tronWeb.contract().new({
    abi:JSON.parse(abi),
    bytecode:code,
    feeLimit:1_00_000_000,
    callValue:0,
    userFeePercentage:1,
    originEnergyLimit:10_000_000
  });
  console.log(contract_instance.address);
}

deploy_contract();// Execute the function
// output-start
414d137bb7f91e8704d712d3967f6a745b9eedd839
// output-end
```