Assets (Native API example)

Transfer a fungible asset. Reference: assets pallet.

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.

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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

# change your working directory to this example first
cd examples/substrate/use-assets

# export all required environments
export CALLER_PRIVATE_KEY=

# creates new collection
pnpm call:transfer

Source files

src/transfer.ts

import { filterExtrinsicEvents } from "@trne/utils/filterExtrinsicEvents";
import { formatEventData } from "@trne/utils/formatEventData";
import { ASTO_ASSET_ID } from "@trne/utils/porcini-assets";
import { sendExtrinsic } from "@trne/utils/sendExtrinsic";
import { withChainApi } from "@trne/utils/withChainApi";

withChainApi("porcini", async (api, caller, logger) => {
	const assetId = ASTO_ASSET_ID;
	const target = caller.address;
	const amount = 0.1 * Math.pow(10, 18); // 0.1 ASTO

	logger.info(
		{
			parameters: {
				assetId,
				target,
				amount,
			},
		},
		`create a "assets.transfer" extrinsic`
	);
	const extrinsic = api.tx.assets.transfer(assetId, target, amount.toString());

	logger.info(`dispatch extrinsic from caller="${caller.address}"`);
	const { result, extrinsicId } = await sendExtrinsic(extrinsic, caller, { log: logger });
	const [transferEvent] = filterExtrinsicEvents(result.events, ["Assets.Transferred"]);

	logger.info(
		{
			result: {
				extrinsicId,
				blockNumber: result.blockNumber,
				transferEvent: formatEventData(transferEvent.event),
			},
		},
		"receive result"
	);
});

package.json

{
  "scripts": {
    "call": "tsx --tsconfig ../../../tsconfig.json",
    "call:transfer": "pnpm call src/transfer.ts"
  }
}

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