ERC-1155 (EVM example)

Create and update an SFT collection, create a token and mint, through the precompiles. Reference: ERC-1155 precompile.
Copied from Futureverse’s futureversecom/trn-examples, deleted with its GitHub organisation, at commit 44c9e16 of 2024-10-31. Apache-2.0: license. Before you run it, read Running the examples.

Offline destinations

Some places this page points to did not answer when last checked:

docs-beta.therootnetwork.com — does not resolve (checked 2026-10-18)
stackblitz.com/github/futureversecom — StackBlitz loads these projects from the deleted futureversecom organisation on GitHub (checked 2026-10-18)

Run in StackBlitz (repository deleted, checked 2026-10-18) · Precompile Documentation (offline, checked 2026-10-18)

IMPORTANT

Ensure the following ENV vars are available before running the examples

CALLER_PRIVATE_KEY - Private key of an account that submits the transaction. Follow this guide to create and fund an account with some test tokens on Porcini (testnet) if you don't have one yet.

Examples

bash

# change your working directory to this example first
cd examples/evm/use-erc1155

# export all required environments
export CALLER_PRIVATE_KEY=

# creates new collection
pnpm call:createCollection

# update collection info
pnpm call:updateCollection

#  create new token for a collection
pnpm call:createToken

# # update token info
pnpm call:updateToken

# mint token(s)
pnpm call:mint

Source files

`src/createCollection.ts`

import { SFT_PRECOMPILE_ABI } from "@therootnetwork/evm";
import { filterTransactionEvents } from "@trne/utils/filterTransactionEvents";
import { getSFTContract } from "@trne/utils/getSFTContract";
import { withEthersProvider } from "@trne/utils/withEthersProvider";
import { ContractReceipt, utils } from "ethers";

/**
 * Use `sft.initializeCollection` to to create a new ERC-721 compatible collection.
 *
 * Assumes the caller has XRP to pay for gas.
 */
withEthersProvider("porcini", async (provider, wallet, logger) => {
	const sft = getSFTContract().connect(wallet);
	const collectionName = utils.hexlify(utils.toUtf8Bytes("MyCollection"));
	const collectionOwner = wallet.address;
	const baseUri = utils.hexlify(utils.toUtf8Bytes("https://example.com/token/"));
	const royaltyAddresses = [wallet.address];
	const royaltyEntitlements = [10_000]; // one percent

	logger.info(
		{
			parameters: {
				collectionOwner,
				collectionName,
				baseUri,
				royaltyAddresses,
				royaltyEntitlements,
			},
		},
		`create "initializeCollection" call`
	);

	logger.info(`dispatch transaction from wallet=${wallet.address}`);
	const tx = await sft.initializeCollection(
		collectionOwner,
		collectionName,
		baseUri,
		royaltyAddresses,
		royaltyEntitlements
	);
	const receipt = (await tx.wait()) as unknown as ContractReceipt;

	const [intializeEvent] = filterTransactionEvents(SFT_PRECOMPILE_ABI, receipt.logs, [
		"InitializeSftCollection",
	]);

	logger.info(
		{
			result: {
				transactionHash: receipt.transactionHash,
				blockNumber: receipt.blockNumber,
				intializeEvent: {
					name: intializeEvent.name,
					args: intializeEvent.args,
				},
			},
		},
		"receive result"
	);
});

`src/createToken.ts`

import { ERC1155_PRECOMPILE_ABI } from "@therootnetwork/evm";
import { filterTransactionEvents } from "@trne/utils/filterTransactionEvents";
import { getERC1155Contract } from "@trne/utils/getERC1155Contract";
import { withEthersProvider } from "@trne/utils/withEthersProvider";
import { ContractReceipt, utils } from "ethers";

const COLLECTION_ID = 269412;

/**
 * Use `TRN1155.createToken` call to create a new token for a collection.
 *
 * Assumes the caller has XRP to pay for gas.
 */
withEthersProvider("porcini", async (provider, wallet, logger) => {
	const erc1155 = getERC1155Contract(COLLECTION_ID).connect(wallet);
	const tokenName = utils.hexlify(utils.toUtf8Bytes("MyToken"));
	const initialIssuance = 0;
	const maxIssuance = 0; // no max issuance
	const tokenOwner = wallet.address;

	logger.info(
		{
			parameters: {
				contractAddress: erc1155.address,
				tokenName,
				initialIssuance,
				maxIssuance,
				tokenOwner,
			},
		},
		`create "createToken" call`
	);

	logger.info(`dispatch transaction from wallet=${wallet.address}`);
	const tx = await erc1155.createToken(tokenName, initialIssuance, maxIssuance, tokenOwner);
	const receipt = (await tx.wait()) as unknown as ContractReceipt;

	const [setEvent] = filterTransactionEvents(ERC1155_PRECOMPILE_ABI, receipt.logs, [
		"TokenCreated",
	]);

	logger.info(
		{
			result: {
				transactionHash: receipt.transactionHash,
				blockNumber: receipt.blockNumber,
				setEvent: {
					name: setEvent.name,
					args: setEvent.args,
				},
			},
		},
		"receive result"
	);
});

`src/mint.ts`

import { ERC1155_PRECOMPILE_ABI } from "@therootnetwork/evm";
import { filterTransactionEvents } from "@trne/utils/filterTransactionEvents";
import { getERC1155Contract } from "@trne/utils/getERC1155Contract";
import { withEthersProvider } from "@trne/utils/withEthersProvider";
import { ContractReceipt } from "ethers";

const COLLECTION_ID = 269412;
const TOKEN_ID = 1;

/**
 * Use `TRN1155.mint` call to mint new tokens.
 *
 * Assumes the caller has XRP to pay for gas.
 */
withEthersProvider("porcini", async (provider, wallet, logger) => {
	const erc1155 = getERC1155Contract(COLLECTION_ID).connect(wallet);
	const tokenOwner = wallet.address;
	const tokenId = TOKEN_ID;
	const amount = 10;

	logger.info(
		{
			parameters: {
				contractAddress: erc1155.address,
				tokenOwner,
				tokenId,
				amount,
			},
		},
		`create "mint" call`
	);

	logger.info(`dispatch transaction from wallet=${wallet.address}`);
	const tx = await erc1155.mint(tokenOwner, tokenId, amount);
	const receipt = (await tx.wait()) as unknown as ContractReceipt;

	const [transferEvent] = filterTransactionEvents(ERC1155_PRECOMPILE_ABI, receipt.logs, [
		"TransferSingle",
	]);

	logger.info(
		{
			result: {
				transactionHash: receipt.transactionHash,
				blockNumber: receipt.blockNumber,
				transferEvent: {
					name: transferEvent.name,
					args: transferEvent.args,
				},
			},
		},
		"receive result"
	);
});

`src/updateCollection.ts`

import { ERC1155_PRECOMPILE_ABI } from "@therootnetwork/evm";
import { filterTransactionEvents } from "@trne/utils/filterTransactionEvents";
import { getERC1155Contract } from "@trne/utils/getERC1155Contract";
import { withEthersProvider } from "@trne/utils/withEthersProvider";
import { ContractReceipt, utils } from "ethers";

const COLLECTION_ID = 269412;

/**
 * Use `TRN1155.setBaseURI` call to update the collection `metadataScheme`.
 *
 * Similar extrinsics are available to update different properties of a collection
 *  - setMaxSupply
 *  Check out the precompile documentation (linked in README) for more details
 *
 * Assumes the caller is the owner of the collection, and has XRP to pay for gas.
 */
withEthersProvider("porcini", async (provider, wallet, logger) => {
	const erc1155 = getERC1155Contract(COLLECTION_ID).connect(wallet);
	const baseUri = utils.hexlify(utils.toUtf8Bytes("https://example.com/token/"));

	logger.info(
		{
			parameters: {
				contractAddress: erc1155.address,
				baseUri,
			},
		},
		`create "setBaseURI" call`
	);

	logger.info(`dispatch transaction from wallet=${wallet.address}`);
	const tx = await erc1155.setBaseURI(baseUri);
	const receipt = (await tx.wait()) as unknown as ContractReceipt;

	const [setEvent] = filterTransactionEvents(ERC1155_PRECOMPILE_ABI, receipt.logs, [
		"BaseURIUpdated",
	]);

	logger.info(
		{
			result: {
				transactionHash: receipt.transactionHash,
				blockNumber: receipt.blockNumber,
				setEvent: {
					name: setEvent.name,
					args: setEvent.args,
				},
			},
		},
		"receive result"
	);
});

`package.json`

json

{
  "scripts": {
    "call": "tsx --tsconfig ../../../tsconfig.json",
    "call:createCollection": "pnpm call src/createCollection.ts",
    "call:updateCollection": "pnpm call src/updateCollection.ts",
    "call:createToken": "pnpm call src/createToken.ts",
    "call:mint": "pnpm call src/mint.ts"
  }
}

Source: futureversecom/trn-examples, examples/evm/use-erc1155 (deleted) · commit 44c9e16, 2024-10-31 · Apache-2.0, license · part of Code examples

ERC-1155 (EVM example) ​

Examples ​

Source files ​

src/createCollection.ts ​

src/createToken.ts ​

src/mint.ts ​

src/updateCollection.ts ​

package.json ​