How Can I use my Metamask accouns to deploy a contract using Truffle

Question

I have the full geth node on my machine and want to deploy my smart contract on ropsten using truffle.

In truffle.js fileI have connected to the node as the following:

ropsten: {

 host: "Localhost",     // Localhost (default: none)
 port: 8545 ,           // Standard Ethereum port (default: none)
 network_id: "*",       // Any network (default: none)
 // from: "",      // Ropsten's id
  // gas: 5500000,        // Ropsten has a lower block limit than mainnet
  // confirmations: 2,    // # of confs to wait between deployments. (default: 0)
  // timeoutBlocks: 200,  // # of blocks before a deployment times out  (minimum/default: 50)
  // skipDryRun: true     // Skip dry run before migrations? (default: false for public nets )
},

In the terminal, I run the node by the following command:

geth --syncmode "fast" --cache=1048 --ropsten --rpc --rpcapi "eth,net,web3" --rpccorsdomain '*' --rpcaddr localhost --rpcport 8545 console

How can I use the funds that in my accounts in Metamask to deploy the contract on truffle?

When I check my accounts balances in geth console, it returns 0 where it has some ether in Metamask Chorome extension

Any help is much appreciated. Thanks

Answer 1

Are you trying to deploy your contracts on ropsten network or on your own private geth node.? If you want to deploy to ropsten you can simply use infura's API.

Also If you are trying to deploy from your metamask account.

• First you need to get your metamask seedphrase from somewhere in metamask's setting
• Then use @truffle/hdwallet-provider package on truffle-config.js to deploy from your metamask account

How? here is the truffle-config.js file below

const HDWalletProvider = require('@truffle/hdwallet-provider');
const mnemonic = <your mnemonic from metamask>
ropsten: {
  provider: function () {
    return new HDWalletProvider(mnemonic, "https://ropsten.infura.io/v3/<your infura key>")
  },
  network_id: 3, // Ropsten's id
  gas: 7000000, // Ropsten has a lower block limit than mainnet
  confirmations: 2, // # of confs to wait between deployments. (default: 0)
  timeoutBlocks: 200, // # of blocks before a deployment times out  (minimum/default: 50)
  skipDryRun: true // Skip dry run before migrations? (default: false for public nets )
},

PS: make sure that you have deposited some ether in your first account of metamask.

Note: you need to store your mnemonic somewhere safe in config or .env file