@gateway.fm/gtw-dvf-client-js/examples/27.ammDeposit.js

DVF client js lib with gateway.fm rpc endpoints

#!/usr/bin/env node

/*
DO NOT EDIT THIS FILE BY HAND!
Examples are generated using helpers/buildExamples.js script.
Check README.md for more details.
*/

const HDWalletProvider = require('@truffle/hdwallet-provider')
const sw = require('starkware_crypto')
const Web3 = require('web3')

const DVF = require('../src/dvf')
const envVars = require('./helpers/loadFromEnvOrConfig')(
  process.env.CONFIG_FILE_NAME
)
const logExampleResult = require('./helpers/logExampleResult')(__filename)

const ethPrivKey = envVars.ETH_PRIVATE_KEY
// NOTE: you can also generate a new key using:`
// const starkPrivKey = dvf.stark.createPrivateKey()
const starkPrivKey = envVars.STARK_PRIVATE_KEY
const rpcUrl = envVars.RPC_URL

const provider = new HDWalletProvider(ethPrivKey, rpcUrl)
const web3 = new Web3(provider)
provider.engine.stop()

const dvfConfig = {
  api: envVars.API_URL,
  dataApi: envVars.DATA_API_URL,
  useAuthHeader: true,
  wallet: {
    type: 'tradingKey',
    meta: {
      starkPrivateKey: starkPrivKey
    }
  },
  apiKey: envVars.API_KEY
  // Add more variables to override default values
}

;(async () => {
  const dvf = await DVF(web3, dvfConfig)

  dvf.config.useAuthHeader = true

  const waitForDepositCreditedOnChain = require('./helpers/waitForDepositCreditedOnChain')

  if (process.env.DEPOSIT_FIRST === 'true') {
    const depositETHResponse = await dvf.deposit('KON', 100, starkPrivKey)
    const depositUSDTResponse = await dvf.deposit('DVF', 200, starkPrivKey)
    await waitForDepositCreditedOnChain(dvf, depositETHResponse)
    await waitForDepositCreditedOnChain(dvf, depositUSDTResponse)
  }

  const pool = 'KONDVF'

  // Amm deposit consist of 2 orders, one for each of the pool tokens.
  // The tokens need to be supplied in a specific ratio. This call fetches
  // order data from Deversifi API via Gateway.FM rpc endpoint, given one of the tokens and desired deposit
  // amount for that token.
  const ammFundingOrderData = await dvf.getAmmFundingOrderData({
    pool,
    token: 'KON',
    amount: 100
  })

  // This call signs the orders contained in the ammFundingOrderData before
  // posting them to Deversifi API via Gateway.FM rpc endpoint. NOTE: if the orders are pre-signed, the
  // method will post them as is.
  const ammPostFundingOrderResponse = await dvf.postAmmFundingOrders(
    ammFundingOrderData
  )

  logExampleResult(ammPostFundingOrderResponse)

})()
.catch(error => {
  console.error(error)
  process.exit(1)
})