@layerzerolabs/lz-aptos-sdk-v2

The Aptos SDK is a comprehensive SDK designed to interact with the Aptos blockchain. It provides a set of utilities and modules to facilitate the development and integration of applications with the Aptos blockchain.

Features

• Price Feed Management: Interact with price feeds, set and get prices.
• ULN Configuration: Manage ULN configurations for sending and receiving messages.
• Executor Configuration: Set and get executor configurations.
• Worker Management: Manage worker configurations and price feeds.
• View Functions: Execute view functions to retrieve data from the blockchain.
• Transaction Management: Build, sign, and send transactions.
• Counter Management: Interact with Counter, getCount, quote and send increment transactions.
• OFT Management: Interact with OFT, getBalance, quote and send transactions.

Installation

To install the Aptos SDK, you can use npm or yarn:

npm install @layerzerolabs/lz-aptos-sdk-v2

or

yarn add @layerzerolabs/lz-aptos-sdk-v2

Usage

Counter SDK Usage

Initialization

import { Stage } from "@layerzerolabs/lz-definitions";
import { SDK as AptosSDK } from "@layerzerolabs/lz-aptos-sdk-v2";
import { Aptos, AptosConfig } from "@aptos-labs/ts-sdk";
import { Counter, Endpoint } from "@layerzerolabs/lz-movevm-sdk-v2";

// url is the aptos chain full node url
const sdk = new AptosSDK({
  stage: Stage.SANDBOX,
  provider: new Aptos(new AptosConfig({ fullnode: url })),
}).LayerzeroModule;
const counter = sdk.Counter;
const endpoint = sdk.Endpoint;

getCount

const count = await counter.getCount();

send increment

import { SandboxV2EndpointId } from '@layerzerolabs/lz-definitions'
import { Options } from '@layerzerolabs/lz-v2-utilities'
import { MnemonicAndPath } from '@layerzerolabs/move-definitions'

const counter = sdk.Counter
const endpoint = sdk.Endpoint
const sender: MnemonicAndPath = {
    path: "m/44'/637'/0'/0'/26'",
    mnemonic: 'test test test test test test test test test test test junk',
}
const eid = SandboxV2EndpointId.APTOS_V2_SANDBOX
const msgType = 1 // (VANILLA=1, COMPOSED=2, ABA=3, COMPOSED_ABA=4)
const value = 0 // native drop amount
const executorOptions = getExecutorLzReceiveOptions(msgType, value)
const [feeInNative] = await quote(eid, msgType, value)
const response = await this.counter.send(
    sender,
    eid,
    msgType,
    BigInt(feeInNative),
    executorOptions.toBytes()
)
const txHash = response.hash // get send increment transaction hash.

// @return (native_fee, zro_fee)
async quote(
    eid: number,
    msgType: number,
    value: string | number = 0
): Promise<[number, number]> {
    const receiver = await counter.getPeer(remoteEid)
    if (receiver === '') {
        throw new Error(`Aptos Counter Peer not set for ${eid}`)
    }
    const message = Uint8Array.from([1, 2, 3, 4, 5])
    return endpoint.quoteView(
        counterAddress,
        eid,
        receiver,
        message,
        getExecutorLzReceiveOptions(msgType, value).toBytes(),
        false // whether pay in LzToken
    )
}

getExecutorLzReceiveOptions(msgType: number, value: string | number = 0): Options {
    const options = Options.newOptions()
    if (msgType === 1) { // VANILLA
        // A -> B
        options.addExecutorLzReceiveOption(300000, value)
    } else if (msgType === 2) { // COMPOSED
        // A -> B1 -> B2
        options.addExecutorLzReceiveOption(200000, value).addExecutorComposeOption(0, 200000, 0)
    } else if (msgType === 3) { // ABA
        //  A -> B -> A
        options.addExecutorLzReceiveOption(500000, 20000)
    } else if (msgType === 4) { // COMPOSED_ABA
        // A -> B1 -> B2 -> A
        options.addExecutorLzReceiveOption(200000, value).addExecutorComposeOption(0, 500000, '200000000000000')
    }
    return options
}

OFT SDK Usage

Initialization

import { SDK as AptosSDK } from "@layerzerolabs/lz-aptos-sdk-v2";
import { Aptos, AptosConfig } from "@aptos-labs/ts-sdk";
import { Oft } from "@layerzerolabs/lz-movevm-sdk-v2";

// your oft contract address.
const address = "0x123";
// url is the aptos chain full node url
const sdk = new AptosSDK({
  stage: Stage.SANDBOX,
  provider: new Aptos(new AptosConfig({ fullnode: url })),
  accounts: {
    oft: address,
  },
});
// false means native type, true is adapter type.
const oft = new Oft(sdk, false);

get balance

import { MnemonicAndPath } from '@layerzerolabs/move-definitions'

const address = '0x123'
const sdk = ...
// false means native type, true is adapter type.
const oft = new Oft(sdk, false)
const sender: MnemonicAndPath = {
    path: "m/44'/637'/0'/0'/45'",
    mnemonic: 'test test test test test test test test test test test junk',
}
const originalBalance = await oft.balanceOf(address ?? sdk.accountToAddress(sender))
const metadata = await oft.metadata()
const decimals = metadata.decimals
// convert balance into a human-readable string representation
const balance = (BigInt(originalBalance) / BigInt(10) ** BigInt(decimals)).toString()

quote oft

Quote the OFT for a particular send without sending

@return (
    oft_limit: The minimum and maximum limits that can be sent to the recipient
    fees: The fees that will be applied to the amount sent
    amount_sent_ld: The amount that would be debited from the sender in local decimals
    amount_received_ld: The amount that would be received by the recipient in local decimals
)

import { SandboxV2EndpointId } from '@layerzerolabs/lz-definitions'
import { addressToBytes32 } from '@layerzerolabs/lz-v2-utilities'
import { MnemonicAndPath } from '@layerzerolabs/move-definitions'

const sdk = ...
// false means native type, true is adapter type.
const oft = new Oft(sdk, false)
const amountLD = 100
const dstEid = SandboxV2EndpointId.APTOS_V2_SANDBOX
const payInLzToken = false
const sender: MnemonicAndPath = {
    path: "m/44'/637'/0'/0'/45'",
    mnemonic: 'test test test test test test test test test test test junk',
}
const userSender = sdk.accountToAddress(sender)
const toBytes32 = addressToBytes32(userSender)
const minAmountLD = (BigInt(amountLD) * 9n) / 10n // 10% tolerance
const options = Uint8Array.from([])
const composeMessage = Uint8Array.from([])
const [oftLimit, oftFeeDetails, amountSentLD, amountReceivedLD] = await oft.quoteOft(
    dstEid,
    toBytes32,
    BigInt(amountLD),
    minAmountLD,
    options,
    composeMessage
)

quote send

Quote the network fees for a particular send

@return (native_fee, zro_fee)

import { SandboxV2EndpointId } from '@layerzerolabs/lz-definitions'
import { addressToBytes32 } from '@layerzerolabs/lz-v2-utilities'
import { MnemonicAndPath } from '@layerzerolabs/move-definitions'

const sdk = ...
// false means native type, true is adapter type.
const oft = new Oft(sdk, false)
const amountLD = 100
const dstEid = SandboxV2EndpointId.APTOS_V2_SANDBOX
const payInLzToken = false
const sender: MnemonicAndPath = {
    path: "m/44'/637'/0'/0'/45'",
    mnemonic: 'test test test test test test test test test test test junk',
}
const userSender = sdk.accountToAddress(sender)
const toBytes32 = addressToBytes32(userSender)
const minAmountLD = (BigInt(amountLD) * 9n) / 10n // 10% tolerance
const options = Uint8Array.from([])
const composeMessage = Uint8Array.from([])
const [nativeFee, lzTokenFee] = await oft.quoteSend(
    userSender,
    dstEid,
    toBytes32,
    BigInt(amountLD),
    minAmountLD,
    payInLzToken,
    options,
    composeMessage
)

send

const sdk = ...
// false means native type, true is adapter type.
const oft = new Oft(sdk, false)
const amountLD = 100
const dstEid = SandboxV2EndpointId.APTOS_V2_SANDBOX
const payInLzToken = false
const sender: MnemonicAndPath = {
    path: "m/44'/637'/0'/0'/45'",
    mnemonic: 'test test test test test test test test test test test junk',
}
const userSender = sdk.accountToAddress(sender)
const toBytes32 = addressToBytes32(userSender)
const minAmountLD = (BigInt(amountLD) * 9n) / 10n // 10% tolerance
const options = Uint8Array.from([])
const composeMessage = Uint8Array.from([])
const [nativeFee, lzTokenFee] = await oft.quoteSend(
    userSender,
    dstEid,
    toBytes32,
    BigInt(amountLD),
    minAmountLD,
    payInLzToken,
    options,
    composeMessage
)
const response = await oft.send(
    sender,
    dstEid,
    toBytes32,
    BigInt(amountLD),
    minAmountLD,
    BigInt(nativeFee),
    BigInt(lzTokenFee),
    options,
    composeMessage
)
const txHash = response.hash // get send transaction hash.