phantasma-sdk-ts

A TypeScript SDK for the Phantasma blockchain.

Installation

Use the package manager npm to install phatasma-ts.

npm install phantasma-sdk-ts

Importing

const { PhantasmaTS } = require("phantasma-sdk-ts");

Logging

SDK logging is opt-in. To enable logs, pass your logger (for example, console) to setLogger. Leave it unset for silent operation.

const { setLogger } = require("phantasma-sdk-ts");

setLogger(console); // enable SDK logs
// setLogger(); // disable SDK logs

Standalone HTML Import

<script src="https://cdn.jsdelivr.net/npm/phantasma-sdk-ts@latest/html/phantasma.js"></script>

phantasma.PhantasmaTS; // To use PhantasmaTS
phantasma.PhantasmaLink; // To use PhantasmaLink
phantasma.EasyConnect; // To use EasyConnect, an easy to use PhantasmaLink wrapper

Table Of Contents

The Phantasma TypeScript SDK transpiles into PhantasmaTS, PhantasmaLink and EasyConnect.

1. PhantasmaTS - Allows you to interact with the Phantasma Blockchain

   • Utility Functions
   • Script Builder
     • Interop Commands
     • Building Transaction
     • Deploying Smart Contract
     • RPC

2. PhantasmaLink - Allows you to interact with Phantasma based wallets

   • Functions
   • Examples

3. EasyConnect - Easy plug and play solution for creating DApps

   • Core Functions
   • Query Function
   • Action Function
   • Easy Script

4. [Misc]

   • Vocab

PhantasmaTS

Use PhantasmaTS to interact with the Phantasma blockchain directly.

PhantasmaTS Utility Functions

Just some standard useful functions that you probably will end up using at some point.

PhantasmaTS.byteArrayToHex(arr: ArrayBuffer | ArrayLike<number>); //Turns a Byte Array into Serialized Hex

PhantasmaTS.getAddressFromWif(wif: string); //Get's Public Address from WIF (Wallet Import Format)

PhantasmaTS.getPrivateKeyFromWif(wif: string); //Get's Private Key from WIF (Wallet Import Format)

PhantasmaTS.hexToByteArray(hexBytes: string); //Turns Serialized Hex into Byte Array

PhantasmaTS.reverseHex(hex: string); //Reverse <-> esreveR Serialized Hex

PhantasmaTS.signData(msgHex: string, privateKey: string); //Signs some text with given Private Key

Building a Script with Script Builder

Building a script is the most important part of interacting with the Phantasma blockchain. Without a propper script, the Phantasma blockchain will not know what you are trying to do.

These functions, .CallContract and .CallInterop, are your bread and butter for creating new scripts.

.CallContract(contractName: string, methodName: string, [arguments]: array)

.CallInterop(functionName: string, [arguments]: array)

• You can find out all the diffrent .CallInterop functions below.

• For .CallContract, you will have to look through the ABI's of all the diffrent smart contracts currently deployed on the Phantasma 'mainnet': Link Here

Example:

//Creating a new Script Builder Object
let sb = new PhantasmaTS.ScriptBuilder();

//Here is an example of a Transactional Script
    sb
    .AllowGas(fromAddress, sb.NullAddress, gasPrice, gasLimit)
    .CallInterop("Runtime.TransferTokens", ['fromAddress', 'toAddress', 'KCAL', 10000000000]) //10000000000 = 1 KCAL
    .SpendGas(fromAddress)
    .EndScript();

--- OR ----

//Here is an example of a non Transactional Script

    sb
    .CallContract('account', 'LookUpName', ['accountName'])
    .EndScript();

InvokeRawScript and decoding the result

let sb = new PhantasmaTS.ScriptBuilder();
sb.CallContract("stake", "GetMasterCount", []);
let script = sb.EndScript();
let targetNet = 'main';

// NOTE - we assume RPC was instantiated previously already, check other samples to see how
let response = await RPC.invokeRawScript(targetNet, script);

const decoder = new PhantasmaTS.Decoder(response.result);
const value = decoder.readVmObject();
console.log(value); // print the decoded value to the console

Interop Functions:

Here are some Interop functions that are used to interact with the core functionality of the Phantasma blockchain. Use these inside your script to add extra functionality.

sb.CallInterop("Runtime.MintTokens", [from: string, target: string, tokenSymbol: string , amount: number]); //Used for Fungible Tokens

sb.CallInterop("Runtime.TransferTokens", [from: string, to: string, tokenSymbol: string, amount: number]); //Used for Fungible Tokens

sb.CallInterop("Runtime.TransferBalance", [from: string, to: string, tokenSymbol: string]);

sb.CallInterop("Runtime.TransferToken", [from: string, to: string, tokenSymbol: string, tokenId: number]); //Used for Non Fungible Tokens

sb.CallInterop("Runtime.SendTokens", [destinationChain: string, from: string, to: string, tokenSymbol: string, amount: number); //Used for Fungible Tokens

sb.CallInterop("Runtime.SendToken", [destinationChain: string, from: string, to: string, tokenSymbol: string, tokenId: number]); //Used for Non Fungible Tokens

sb.CallInterop("Runtime.DeployContract", [from: string, contractName: string, pvm: hexString, abi: hexString]);

Building a Transaction

To build a transaction you will first need to build a script.

Note, building a Transaction is for transactional scripts only. Non transactional scripts should use the RPC function RPC.invokeRawScript(chainInput: string, scriptData: string)

const { PhantasmaTS } = require("phantasma-sdk-ts");


async function sendTransaction() {

  let WIF = "WIF"; //In WIF Format
  let fromAddress = "yourPublicWalletAddress";
  let toAddress = "addressYoureSendingTo";

  //Creating RPC Connection **(Needs To Be Updated)
  let RPC = new PhantasmaTS.PhantasmaAPI(
    "http://localhost:7077/rpc",
    null,
    "simnet"
  );

  //set Gas parameters for Runtime.TransferTokens
  let gasPrice = PhantasmaTS.DomainSettings.DefaultMinimumGasFee; //Internal Blockchain minimum gas fee needed - i.e 100000
  let gasLimit = 9999;

  //Creating a new Script Builder Object
  let sb = new PhantasmaTS.ScriptBuilder();

  //Making a Script
  let script = sb
    .BeginScript()
    .AllowGas(fromAddress, sb.NullAddress, gasPrice, gasLimit)
    .CallInterop("Runtime.TransferTokens", [
      fromAddress,
      toAddress,
      "SOUL",
      100000000,
    ]) //100000000 = 1 SOUL
    .SpendGas(fromAddress)
    .EndScript();

  //Used to set expiration date
  let expiration = 5; //This is in miniutes
  let getTime = new Date();
  let expiration_date = new Date(getTime.getTime() + expiration * 60000);

  let payload = PhantasmaTS.Base16.encode("Phantasma-ts"); //Says '7068616e7461736d612d7473' in hex

  //Creating New Transaction Object
  let transaction = new PhantasmaTS.Transaction(
    "simnet", //Nexus Name - if you're using mainnet change it to mainnet or simnet if you're using you localnode
    "main", //Chain
    script, //In string format
    expiration_date, //Date Object
    payload //Extra Info to attach to Transaction in Serialized Hex
  );

  //Sign's Transaction with WIF
  transaction.sign(WIF);
  let hexEncodedTx = transaction.ToStringEncoded(true); //converts trasnaction to base16 string -true means transaction is signed-

  //Send Transaction
  let txHash = await RPC.sendRawTransaction(hexEncodedTx);
  //Return Transaction Hash
  return txHash;
}

Staking SOUL

This is an example how to stake SOUL

async function stakeSOUL() {
  let WIF = "WIF"; //WIF format

  let fromAddress = "yourPublicWalletAddress"; // Phantasma Public Address

  //Creating a new Script Builder Object
  let sb = new PhantasmaTS.ScriptBuilder();
  let gasPrice = PhantasmaTS.DomainSettings.DefaultMinimumGasFee; //Internal Blockchain minimum gas fee needed - i.e 100000
  let gasLimit = 21000;
  let amount = String(10 * 10 ** 8); // 100 the amount - 10**8 it's to get the decimals to the desired amount
  // Soul has 8 decimals places.

  //Creating RPC Connection **(Needs To Be Updated)
  let RPC = new PhantasmaTS.PhantasmaAPI(
    "http://localhost:7077/rpc",
    null,
    "simnet"
  );

  //Making a Script
  let script = sb
    .AllowGas(fromAddress, sb.NullAddress, gasPrice, gasLimit)
    .CallContract("stake", "Stake", [fromAddress, amount])
    .SpendGas(fromAddress)
    .EndScript();

  //Used to set expiration date
  let expiration = 5; //This is in miniutes
  let getTime = new Date();
  let expiration_date = new Date(getTime.getTime() + expiration * 60000);

  let payload = "7068616e7461736d612d7473"; //Says 'Phantasma-ts' in hex

  //Creating New Transaction Object
  let transaction = new PhantasmaTS.Transaction(
    "simnet", //Nexus Name - if you're using mainnet change it to mainnet
    "main", //Chain
    script, //In string format
    expiration_date, //Date Object
    payload //Extra Info to attach to Transaction in Serialized Hex
  );

  //Sign's Transaction with WIF
  transaction.sign(WIF);

  let hexEncodedTx = transaction.ToStringEncoded(true);

  //Send Transaction
  let txHash = await RPC.sendRawTransaction(hexEncodedTx);

  //Return Transaction Hash
  return txHash;
}

Deploying a Contract

async function deployContract() {
  //Wallet Stuff
  let WIF = "WIF"; //In wif Format
  let fromAddress = "yourPublicWalletAddress";

  //Contract Stuff
  let pvm = "PVM HEX String";
  let abi = "ABI HEX String";

  //convert Pvm to Bytes -> uint8Array
  let pvm_byteArr = PhantasmaTS.hexToByteArray(pvm);
  pvm_byteArr.shift();
  let byte_pvm = new Uint8Array(pvm_byteArr);

  //convert abi to Bytes -> uint8Array
  let abi_byteArr = PhantasmaTS.hexToByteArray(abi);
  abi_byteArr.shift();
  let byte_abi = new Uint8Array(abi_byteArr);

  let gasPrice = PhantasmaTS.DomainSettings.DefaultMinimumGasFee; //Internal Blockchain minimum gas fee needed - i.e 100000
  let gasLimit = 21000;
  let contractName = "contractName"; //Whatever you want

  //Creating a new Script Builder Object
  let sb = new PhantasmaTS.ScriptBuilder();

  //New RPC and Peers Needed
  //Creating RPC Connection, use ('http://testnet.phantasma.info/rpc', null, 'testnet') for testing
  let RPC = new PhantasmaTS.PhantasmaAPI(
    "http://localhost:5172/rpc",
    null,
    "simnet"
  );

  //Making a Script
  let script = sb
    .AllowGas(fromAddress, sb.NullAddress, gasPrice, gasLimit)
    .CallInterop("Runtime.DeployContract", [
      fromAddress,
      contractName,
      byte_pvm,
      byte_abi,
    ])
    .SpendGas(fromAddress)
    .EndScript();

  //Used to set expiration date
  let expiration = 5; //This is in miniutes
  let getTime = new Date();
  let expiration_date = new Date(getTime.getTime() + expiration * 60000);

  //Setting Temp Payload
  let payload = "MyApp";

  //Creating New Transaction Object
  let transaction = new PhantasmaTS.Transaction(
    "simnet", //Nexus Name
    "main", //Chain
    script, //In string format
    expiration_date, //Date Object
    payload //Extra Info to attach to Transaction in Serialized Hex
  );

  //Deploying Contract Requires POW -- Use a value of 5 to increase the hash difficulty by at least 5
  transaction.mineTransaction(5);

  //Signs Transaction with your WIF
  transaction.sign(WIF);

  let hexEncodedTx = transaction.ToStringEncoded(true);

  //Sends Transaction
  let txHash = await RPC.sendRawTransaction(hexEncodedTx);

  //Returns Transaction Hash
  return txHash;
}

Scanning the blockchain for incoming transactions

const { PhantasmaTS } = require("phantasma-sdk-ts");

let RPC = new PhantasmaTS.PhantasmaAPI(
  "https://pharpc1.phantasma.info/rpc",
  null,
  "mainnet"
);

// Store the current height of the chain
let currentHeight = 1;

let chainName = "main";

function onTransactionReceived(address, symbol, amount) {}

// Function that periodically checks the height of the chain and fetches the latest block if the height has increased
async function checkForNewBlocks() {
  // Get the current height of the chain
  let newHeight = await RPC.getBlockHeight(chainName);

  // Check if the height has increased
  if (newHeight > currentHeight) {
    // Fetch the latest block
    let latestBlock = await RPC.getBlockByHeight(chainName, newHeight);

    // Check all transactions in this block
    for (i = 0; i < latestBlock.txs.length; i++) {
      let tx = latestBlock.txs[i];

      // Check all events in this transaction
      for (j = 0; j < tx.events.length; j++) {
        let evt = tx.events[j];
        if (evt.kind == "TokenReceive") {
          var data = PhantasmaTS.getTokenEventData(evt.data);
          onTransactionReceived(evt.address, data.symbol, data.value);
        }
      }
    }

    // Update the current height of the chain
    currentHeight = newHeight;
  }

  // Repeat this process after a delay
  setTimeout(checkForNewBlocks, 1000);
}

// Start checking for new blocks
checkForNewBlocks();

Using RPC

let RPC = new PhantasmaTS.PhantasmaAPI(
  "https://pharpc1.phantasma.info/rpc",
  null,
  "mainnet"
);

Utillities:

• RPC.JSONRPC(method: string, params: Array<any>); <- Used to make any Phantasma RPC call
• RPC.updateRpc()
• RPC.setRpcHost(rpcHost: string)
• RPC.setRpcByName(rpcName: string)
• RPC.setNexus(nexus: string)
• RPC.convertDecimals(amount: number, decimals: number)

All RPC Function Calls:

await RPC.getAccount(account: string); //Returns the account name and balance of given address.

await RPC.lookUpName(name: string); //Returns the address that owns a given name.

await RPC.getBlockHeight(chainInput: string); //Returns the height of a chain.

await RPC.getBlockTransactionCountByHash(blockHash: string); //Returns the number of transactions of given block hash or error if given hash is invalid or is not found.

await RPC.getBlockByHash(blockHash: string); //Returns information about a block by hash.

await RPC.getRawBlockByHash(blockHash: string); //Returns a serialized string, containing information about a block by hash.

await RPC.getBlockByHeight(chainInput: string, height: number); //Returns information about a block by height and chain.

await RPC.getRawBlockByHeight(chainInput: string, height: number); //Returns a serialized string, in hex format, containing information about a block by height and chain.

await RPC.getTransactionByBlockHashAndIndex(blockHash: string, index: number); //Returns the information about a transaction requested by a block hash and transaction index.

await RPC.getAddressTransactions(account: string, page: number, pageSize: number); //Returns last X transactions of given address.

await RPC.getAddressTransactionCount(account: string, chainInput: string); //Get number of transactions in a specific address and chain.

await RPC.sendRawTransaction(txData: string); //Allows to broadcast a signed operation on the network, but it's required to build it manually.

await RPC.invokeRawScript(chainInput: string, scriptData: string); //Allows to invoke script based on network state, without state changes.

await RPC.getTransaction(hashText: string); //Returns information about a transaction by hash.

await RPC.cancelTransaction(hashText: string); //Removes a pending transaction from the mempool.

await RPC.getChains(); //Returns an array of all chains deployed in Phantasma.

await RPC.getNexus(); //Returns info about the nexus.

await RPC.getOrganization(ID: string); //Returns info about an organization.

await RPC.getLeaderboard(name: string); //Returns content of a Phantasma leaderboard.

await RPC.getTokens(); //Returns an array of tokens deployed in Phantasma.

await RPC.getToken(symbol: string); //Returns info about a specific token deployed in Phantasma.

await RPC.getTokenData(symbol: string, IDtext: string); //Returns data of a non-fungible token, in hexadecimal format.

await RPC.getTokenBalance(account: string, tokenSymbol: string, chainInput: string); //Returns the balance for a specific token and chain, given an address.

await RPC.getAuctionsCount(chainAddressOrName: string, symbol: string); //Returns the number of active auctions.

await RPC.getAuctions(chainAddressOrName: string, symbol: string, page: number, pageSize: number); //Returns the auctions available in the market.

await RPC.getAuction(chainAddressOrName: string, symbol: string, IDtext: string); //Returns the auction for a specific token.

await RPC.getArchive(hashText: string)getArchive(hashText: string); //Returns info about a specific archive.

await RPC.writeArchive(hashText: string, blockIndex: number, blockContent: string); //Writes the contents of an incomplete archive.

await RPC.getABI(chainAddressOrName: string, contractName: string); //Returns the ABI interface of specific contract.

await RPC.getPeers(); //Returns list of known peers.

await RPC.relaySend(receiptHex: string); //Writes a message to the relay network.

await RPC.relayReceive(account: string); //Receives messages from the relay network.

await RPC.getEvents(account: string); //Reads pending messages from the relay network.

await RPC.getPlatforms(); //Returns an array of available interop platforms.

await RPC.getValidators(); //Returns an array of available validators.

await RPC.settleSwap(sourcePlatform: string, destPlatform: string, hashText: string); //Tries to settle a pending swap for a specific hash.

await RPC.getSwapsForAddressOld(account: string); //Returns platform swaps for a specific address.

await RPC.getSwapsForAddress(account: string, platform: string); //Returns platform swaps for a specific address.

await RPC.getNFT(symbol: string, nftId: string); //Returns info of a nft.

PhantasmaLink

PhantasmaLink is a core connecting piece that allows you to interact with Phantasma based Wallets. PhantasmaLink is a building block to help you connect with wallets, however if you are more interested in using a more simple plug and play product, please see EasyConnect <- Super Useful

Since phantasmaLink is a Class we are going to initiate a new phantasmaLink object.

let dappID = "Dapp Name"; //This is just the name you want to give the connection
let consoleLogging = true; //This is if you want console logging for Debugging Purposes [Default is set to true]

let link = new PhantasmaLink(dappID, consoleLogging);

Vocab

• Callback - Function that gets called on after a success
• onErrorCallback - Function that gets called on after a failure
• Script - A set of instructions for that PhantasmaChain to decode that lies inside of a transaction object See ScriptBuilder
• Nexus - The chain on Phantasma that is being used: Either 'mainnet' or 'testnet'
• Payload - Extra data attached to a transaction object
• ProviderHint - Tells PhantasmaLink which wallet you intend to connect with

Functions:

link.login(onLoginCallback, onErrorCallback, providerHint); //Provider Hint can be 'ecto' or 'poltergeist'

link.invokeScript(script, callback); //Allows you to do a ReadOnly script operation on the Phantasma Blockchain (Sends results as an Argument to Callback Function)

link.signTx(nexus, script, payload, callback, onErrorCallback); //Signs a Transaction via Wallet (payload can be Null) (Sends results as an Argument to Callback Function)

link.signCarbonTxAndBroadcast(txMsg, onSuccess, onErrorCallback); //Signs & broadcasts a Carbon TxMsg via wallets that support Phantasma Link v4+

link.signTxPow(nexus, script, payload, proofOfWork, callback, onErrorCallback);  //Signs a Transaction via Wallet with ProofOfWork Attached (Used for Contract Deployment)

//ProofOfWork Enum
enum ProofOfWork {
    None = 0,
    Minimal = 5,
    Moderate = 15,
    Hard = 19,
    Heavy = 24,
    Extreme = 30
}

link.getPeer(callback, onErrorCallback); //Get's the peer list for the currently connected network

link.signData(data, callback, onErrorCallback); //Allows you to sign some data via your Wallet (Sends results as an Argument to Callback Function)

link.toggleMessageLogging(); //Toggles Console Message Logging

link.dappID(); //Returns DappID

link.sendLinkRequest(request, callback); //Used internally and sends wallet instructions through socket, you probably won't use it unless you know what your doing

link.createSocket(); //Used internally to connect to wallet, you probably won't use it unless you know what your doing
link.retry(); //Used internally to retry socket connection, you probably won't use it unless you know what your doing

link.disconnect(message); //Disconnects From Socket (You can add a reason with the Message Argument)

Example Code

Here is some example code to initate a wallet connection.

let link = new PhantasmaLink("Dapp"); //"Dapp" is just whatever name you want to give your application

//Use this code snippet to connect to a phantasma wallet
link.login(
  function (success) {
    //Console Logging for Debugging Purposes
    if (success) {
      console.log(
        "Connected to account " + this.account.address + " via " + this.wallet
      );
    } else {
      console.log("Connection Failed");
    }
  },
  (data) => {
    console.log(data);
  },
  "ecto"
); //Swap out ecto for 'poltergeist' if wanting to connect to Poltergeist Wallet

Carbon Transactions (Link v4+)

Wallets that expose Phantasma Link v4 (or higher) can sign and broadcast Carbon TxMsg payloads directly. Make sure you log in with version = 4 when calling link.login, then forward the message via signCarbonTxAndBroadcast. The wallet will return a serialized SignedTxMsg blob that can be re-used locally if needed.

import {
  TxMsg,
  TxTypes,
  SmallString,
  TxMsgTransferFungible,
  Bytes32,
  PhantasmaAPI,
} from 'phantasma-sdk-ts';

const api = new PhantasmaAPI('https://pharpc1.phantasma.info/rpc', null, 'mainnet');

const txMsg = new TxMsg(
  TxTypes.TransferFungible,
  BigInt(Math.floor(Date.now() / 1000) + 300), // expiry (UTC seconds)
  100000n, // max gas
  0n,
  new Bytes32(senderPublicKeyBytes), // sender address as 32-byte buffer
  SmallString.empty,
  new TxMsgTransferFungible(new Bytes32(receiverPublicKeyBytes), 1n, 10_00000000n)
);

link.signCarbonTxAndBroadcast(txMsg, async ({ signedTx }) => {
  await api.sendCarbonTransaction(signedTx);
});

EasyConnect

EasyConnect is a plug and play wrapper for PhantasmaLink that makes creating a DApp simple and easy.

Since EasyConnect is a Class we are going to initiate a new EasyConnect object.

//Optional Arguments [ requiredVersion: number, platform: string, providerHint: string]
let link = new EasyConnect(); //Has Optional Arguments input as Array

Core Functions

link.connect(onSuccess, onFail); //Has two optional callback functions, one for Success and one for Failure

link.disconnect(_message: string); //Allows you to disconnect from the wallet with a desired message

link.signTransaction(script: string, payload: string, onSuccess, onFail); //Used to send a transaction to Wallet

link.signCarbonTransaction(txMsg, onSuccess, onFail); //Sends a Carbon TxMsg to the connected wallet (Link v4+)

link.signData(data:any, onSuccess, onFail); //Allows you to sign data with a wallet keypair

link.setConfig(_provider: string); //Allows you to set wallet provider, 'auto', 'ecto', 'poltergeist' (Default is already set to 'auto')

//Allows Async aswell
link.query(_type: string, _arguments: Array<string>, _callback); //Allows you to query connected wallet/account information (arguments and callback are optional)

//Allows Async aswell
link.action(_type: string, _arguments: Array<string>, _callback); //Allows you to send a specified action quickly

//Allows Async aswell
link.script.buildScript(_type: string, _arguments: Array<string>, _callback); //Allows you to quickly create a script with only arguments
// Script Types
// 'interact', [contractName, methodName, [arguments]]
// 'invoke', [contractName, methodName, [arguments]]
// 'interop', [interopName, [arguments]]

link.invokeScript(script: string, _callback); //Allows you to query data from smart contracts on Phantasma (Non Transactional)

link.deployContract(script: string, payload:string, proofOfWork, onSuccess, onFail) //Allows you to deploy a contract script

//Proof of Work Enum
export enum ProofOfWork {
    None = 0,
    Minimal = 5,
    Moderate = 15,
    Hard = 19,
    Heavy = 24,
    Extreme = 30
}

Note: Carbon helpers require a Phantasma Link v4 (or newer) session. When instantiating EasyConnect pass [4, 'phantasma', providerHint] (or change requiredVersion) before calling connect, otherwise wallets will reject Carbon signing requests.

Query Function

The Query function is an async function that also allows you to use callbacks. You can use it is a promise, or in a chain!

await link.query("account"); //Retrieves all connected wallet account information

await link.query("name"); //Retrieves registered name associated with connect wallet

await link.query("balances"); //Shows complete token balance accociated with connected wallet

await link.query("walletAddress"); //Shows connected wallet address

await link.query("avatar"); //Shows connected wallet avatar

Action Function

The Action function is an async function that also allows you to use callbacks. You can use it is a promise, or in a chain!

await link.action('sendFT', [fromAddress:string, toAddress:string, tokenSymbol:string, amount:number]); //Send Fungible Token

await link.action('sendNFT', [fromAddress:string, toAddress:string, tokenSymbol:string, tokenID:number]); //Send Non Fungible Token

Easy Script Create

(WIP) Allows you to generate scripts quickly.

async buildScript(_type: string, _options: Array<any>);
// Script Types
// 'interact', [contractName, methodName, [arguments]]
// 'invoke', [contractName, methodName, [arguments]]
// 'interop', [interopName, [arguments]]