TronBox is Tron's smart contract development, testing and deployment tool


OS requirement

  • NodeJS 5.0+
  • Linux, or Mac OS X
npm install -g tronbox


Installation permissions issue

If the command in the shell fails due to a permission issue, please follow this command to install again: sudo npm install -g tronbox --unsafe-perm=true --allow-root --save-dev grunt
If you still have permission issues, you can try to use nvm to manage nmp and node and install again.

Tronbox npm Package Security Validation
Prepare, you need to install the npm pkgsign for verifying.

First, get the version of tronbox dist.tarball

$ npm view tronbox dist.tarball

Second, get the tarball


Finally, verify the tarball

$ pkgsign verify tronbox-2.7.17.tgz --package-name tronbox
extracting unsigned tarball...
building file list...
verifying package...
package is trusted

The public key address used for signing is here.

Initialize a Tron-Box Project

Enter the following command under an empty folder

tronbox init
.gitignore		contracts		migrations		test			tronbox-config.js	tronbox.js
./contractThe directory storing all smart contract files.
./migrationsThe directory storing all javascript files for migration.
./testThe directory storing all test scripts for testing the smart contract.
./tronbox.jsThe configuration file of the project. Declare your Full Node address and Event Server in this file.

Basic Commands

tronbox compileCompiles all the smart contracts. The compiled result is stored into ./build/contracts.

This command only compiles files that have been modified since the last compile.
tronbox compile --compile-allRe-compiles all the smart contracts.
tronbox migrateDeploys the contract. This command only migrates changes since the last successful migration.
tronbox migrate --resetRe-migrates all the smart contracts.
tronbox test [test_script_path]Runs all test scripts. Test file name definition is optional. It also can be run with --reset flag.
tronbox consoleThe console supports the tronbox command. For example, you can invoke migrate --reset in the console. The result is the same as invoking tronbox migrate --reset in the command.

Smart Contract Deployment using Tronbox

To deploy a smart contract using a tronbox, you need to write a smart contract file, compile the smart contract, and finally migrate and deploy the smart contract. After that you can then use the script to test.

Smart Contract Development

All smart contract files need to be placed in the ./contracts directory. By default, there will be a contract file with a suffix of .sol. But if you need to write a smart contract, you need to create a new .sol.
Tronbox requires the smart contract name to be the same as the file name. For example, if the file name is Test.sol, we can write the contract as follows:

pragma solidity >=0.4.23 <0.6.0;
contract Test{
    function f() public pure returns (string memory){
        return "method f()";
    function g() public pure returns (string memory){
        return "method g()";

Configuring migration scripts

Configuring migrations/2_deploy_contracts.js as follows:

var Test = artifacts.require("./Test.sol");
var Migrations = artifacts.require("./Migrations.sol");

module.exports = function(deployer) {

The deploy function in this file also supports the contract constructor arguments.

Configuring compilation and deployment parameters

The tronbox.js file holds configurations the contract will deploy to. To specify the network, use --network NETWORK_NAME when migrating or testing.

module.exports = {
  networks: {
      development: {

          from: 'some address',
          privateKey: 'some private key',
          consume_user_resource_percent: 30,
          fee_limit: 100000000,
          fullNode: "",
          solidityNode: "",
          eventServer:  "it is optional",
          network_id: "*" // Match any network id
      production: {
          from: 'some other address',
          privateKey: 'some other private key',
          consume_user_resource_percent: 30,
          fee_limit: 100000000,
          fullNode: "",
          solidityNode: "",
          eventServer:  "it is optional",
          network_id: "*" // Match any network id
    ..... you can define other network configuration as well

Note: Solidity Support
To set up a specific compiler version, using the networks.compilers.solc.version property. For example:

module.exports = {
  networks: {
    // ...
    compilers: {
      solc: {
        version: '0.5.15' // for compiler version

  // solc compiler optimize
  solc: {
    optimizer: {
      enabled: false, // default: false, true: enable solc optimize
      runs: 200
    evmVersion: 'istanbul'

Solidity compiler versions supported by TronBox, please refer to TronBox Github.

Compiling smart contract

To compile the contract, use:

tronbox compile

By default, tronbox compiler only compiles modified contracts since last compile, to reduce unnecessary compiling. If you wish to compile the entire file, you can use --compile-all.

tronbox compile --compile-all

The compile output is in ./build/contracts directory. If the directory doesn't exist, it will be auto-generated.

Contract Deployment

Script migration is with a JavaScript file composed to broadcast onto Tron network. The script migration caches your broadcast responsibility. Its existence is based on your broadcast needs and will adjust accordingly. When your work incurs significant change, the migration script you created will propagate the changes through the blockchain. Previous migration history records will undergo a unique Migrations contract to be recorded on the blockchain. Below is a detailed instruction.

To initiate the migration, use the following command:

tronbox migrate

This command will initiate all migration scripts within the migration directory. If your previous migration was successful, tronbox migrate will initiate a new migration and use the development network by default.

If there is no new migration script, this command will have no operation. Instead, you can use --reset to re-deploy. You can also use --network NETWORK_NAME to specify a network. Eg. tronbox migrate --reset --network production

PS  C:\**\bare-box> tronbox migrate --reset --network production
Using network 'production'.
Running migration: 1_initial_migration.js
  Deploying Migrations...
  Migrations: 41271233ac2eea178ec52f1aea64627630403c67ce
  Deploying Test...
  Test: 41477f693ae6f691daf7d399ee61c32832c0314871
Saving successful migration to network...
Saving artifacts...


The testing scripts are in the ./tests directory. TronBox will ignore all other extensions except for .js, .es, .es6, and .jsx
Below is an example testing script for test.js:

var Test = artifacts.require("./Test.sol");
contract('Test', function(accounts) {
        it("call method g", function() {
            Test.deployed().then(function(instance) {
                }).then(function(result) {
                  assert.equal("method g()", result, "is not call method g");
        it("call method f", function() {
            Test.deployed().then(function(instance) {
                }).then(function(result) {
                  assert.equal("method f()", result, "is not call method f");

Running Testing Script

PS C:\**\bare-box> tronbox test ./test/test.js 
Using network 'production'.
  Contract: Test
    √ call method g
    √ call method f
  2 passing (23ms)

Example Dapp
It can be obtained by the following command.
It can also be found at here.

tronbox unbox metacoin