work in progress for gsn

migrations/5_deploy_eth_mixer_proxy.js

@@ -0,0 +1,16 @@
+/* global artifacts */
+require('dotenv').config({ path: '../.env' })
+const ETHMixer = artifacts.require('ETHMixer')
+const gsnProxy = artifacts.require('GSNProxy')
+
+module.exports = function(deployer) {
+  return deployer.then(async () => {
+    let mixer = await ETHMixer.deployed()
+    const proxy = await deployer.deploy(
+      gsnProxy,
+      mixer.address,
+      '0x0000000000000000000000000000000000000000',
+    )
+    console.log('Mixer\'s proxy address ', proxy.address)
+  })
+}

migrations/7_deploy_erc20_mixer_proxy.js

@@ -0,0 +1,32 @@
+/* global artifacts */
+require('dotenv').config({ path: '../.env' })
+const ERC20Mixer = artifacts.require('ERC20Mixer')
+const gsnProxy = artifacts.require('GSNProxy')
+const ERC20Mock = artifacts.require('ERC20Mock')
+const UniswapMock = artifacts.require('UniswapMock')
+const { toBN, toWei } = require('web3-utils')
+const eth2daiPrice = toBN('174552286079977583324') // cause 1 ETH == 174.55 DAI
+
+
+module.exports = function(deployer, network) {
+  return deployer.then(async () => {
+    const { ERC20_TOKEN } = process.env
+    let token = ERC20_TOKEN
+    let uniswapAddress
+    if (network === 'development') { // means we want to test with mock
+      if (token === '') {
+        const tokenInstance = await ERC20Mock.deployed()
+        token = tokenInstance.address
+      }
+      const uniswap = await deployer.deploy(UniswapMock, token, eth2daiPrice, { value: toWei('0.5') })
+      uniswapAddress = uniswap.address
+    }
+    let mixer = await ERC20Mixer.deployed()
+    const proxy = await deployer.deploy(
+      gsnProxy,
+      mixer.address,
+      uniswapAddress,
+    )
+    console.log('ERC20Mixer\'s proxy address ', proxy.address)
+  })
+}