@rhino.fi/client-js/src/api/ledger/transfer.js

const FP = require('lodash/fp')
const { Joi } = require('@rhino.fi/dvf-utils')

const validateWithJoi = require('../../lib/validators/validateWithJoi')

const schema = Joi.object({
  token: Joi.string(),
  amount: Joi.bigNumber().greaterThan(0),
  memo: Joi.string().optional(),
  recipientEthAddress: Joi.ethAddress(),
})

const validateInputs = validateWithJoi(schema)('INVALID_METHOD_ARGUMENT')({
  context: `transfer`,
})

module.exports = async (dvf, data, path, nonce, signature) => {
  dvf = FP.set('config.useAuthHeader', true, dvf)
  const { token, amount, recipientEthAddress, memo } = validateInputs(data)
  const { vaultId, starkKey } = await dvf.getVaultIdAndStarkKey(
    {
      token,
      targetEthAddress: recipientEthAddress,
    },
    nonce,
    signature,
  )
  const feeRecipient = await dvf.getVaultIdAndStarkKey(
    {
      token,
      targetEthAddress: dvf.config.DVF.deversifiAddress,
    },
    nonce,
    signature,
  )
  return dvf.ledger.transferUsingVaultIdAndStarkKey(
    {
      token,
      amount,
      memo,
      recipientVaultId: vaultId,
      recipientPublicKey: starkKey,
    },
    path,
    feeRecipient,
  )
}