Aptos

Aptos is a Move-based Layer 1 blockchain. Applications expose Move entry functions, identified by a module address, module name, and function name, with typed arguments supplied in the transaction payload.

Follow these steps to submit and track a simple transaction on Aptos.

Import the SDK

import { Tachyon, ChainId } from '@rathfi/tachyon'

Initialize the Tachyon Client

const tachyon = new Tachyon({
  apiKey: 'API-KEY',
})

Submit a Transaction

const txId = await tachyon.relay({
  chainId: 88888888, // Aptos chain ID
  to: '0x09ebf332aa3e4edad203aff521bd8a47597119de1956885711223ec157eac219',
  value: '1',
  callData: '0x',
  gasLimit: '100', // Required for Aptos
  label: 'My Aptos Transaction',
})

console.log('Transaction submitted with ID:', txId)

Check Transaction Status

const status = await tachyon.getRelayStatus(txId)
console.log('Transaction status:', status.status)

Wait for Execution

const executedTx = await tachyon.waitForExecutionHash(txId)
console.log('Execution hash:', executedTx.executionTxHash)

Call a Move Function

Build an Aptos function payload as JSON, base64-encode it into callData, and use the module account as to.

import { Tachyon } from '@rathfi/tachyon'

const tachyon = new Tachyon({ apiKey: 'YOUR_API_KEY' })
const moduleAddress = '0x3690a8173c5f738234d3772621db2923cf283029d0b9a7795038fde6f3fcdabd'

const functionPayload = {
  function: `${moduleAddress}::hello_tachyon_v2::preview_message`,
  typeArguments: [],
  functionArguments: ['GM Tachyon!'],
}

const callData = Buffer.from(JSON.stringify(functionPayload)).toString('base64')

const txId = await tachyon.relay({
  chainId: 88888888,
  to: moduleAddress,
  value: '0',
  callData,
  label: 'call-contract-aptos',
  gasLimit: '5000',
})

curl -X POST https://tachyon.rath.fi/api/submit-tx \
  -H "api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "chainId": 88888888,
    "to": "0x3690a8173c5f738234d3772621db2923cf283029d0b9a7795038fde6f3fcdabd",
    "value": "0",
    "callData": "eyJmdW5jdGlvbiI6IjB4MzY5MGE4MTczYzVmNzM4MjM0ZDM3NzI2MjFkYjI5MjNjZjI4MzAyOWQwYjlhNzc5NTAzOGZkZTZmM2ZjZGFiZDo6aGVsbG9fdGFjaHlvbl92Mjo6cHJldmlld19tZXNzYWdlIiwidHlwZUFyZ3VtZW50cyI6W10sImZ1bmN0aW9uQXJndW1lbnRzIjpbIkdNIFRhY2h5b24hIl19",
    "label": "call-contract-aptos",
    "gasLimit": "5000"
  }'