Make @truffle/hdwallet-provider work for Harmony

[gupadhyaya]

Description

Currently we are unable to use @truffle/hdwallet-provider (https://www.npmjs.com/package/@truffle/hdwallet-provider) for harmony network. Somehow the network_id/chain_id is omitted when signing txs using Harmony's ETH compatible chain ids (https://docs.harmony.one/home/network/wallets/browser-extensions-wallets/metamask-wallet).

Context

The error is as shown below, when you run: truffle migrate --reset --network testnet

Starting migrations...
======================
> Network name:    'testnet'
> Network id:      1666700000
> Block gas limit: 80000000 (0x4c4b400)

1_initial_migration.js
======================

   Deploying 'Migrations'
   ----------------------

Error:  *** Deployment Failed ***

"Migrations" -- blockchain chain id:2, given 0: invalid chain id for signer.

    at ./.nvm/versions/node/v10.17.0/lib/node_modules/truffle/build/webpack:/packages/deployer/src/deployment.js:364:1
    at process._tickCallback (internal/process/next_tick.js:68:7)
Truffle v5.1.33 (core: 5.1.33)
Node v10.21.0

the testnet entry in truffle-config.js is:

const HDWalletProvider = require('@truffle/hdwallet-provider');
...
testnet: {
      provider: () => {
         if (!privateKeyTest.trim()) {
            throw new Error(
               'Please enter a private key with funds, you can use the default one'
            );
         }
         return new HDWalletProvider(
            privateKeyTest,
            'https://api.s0.b.hmny.io'
         );
      },
      network_id: 1666700000,
},

More context:

• This seems to be an issue for some other chains that also use custom chain ids - https://medium.com/moonbeam-network/moonbeam-truffle-box-a-boilerplate-setup-to-get-started-deploying-smart-contracts-on-moonbeam-5f911fa584de
• If you are familiar with Truffle, you might have noticed that we are using a custom provider programmed by ourselves, instead of the most common ones such as hdwallet-provider
• This custom provider still uses standard libraries such as the web3-provider-engine and ethereumjs-wallet.
• The reason behind this is because our custom chain ID was not being included by the library used to sign the transactions.
• Therefore, the signature is invalid because the chain ID in the transaction blob is missing, and the transaction is rejected.
• Weirdly enough, since Feb 15, 2021 Moonbeam now seems to be able to use regular @truffle/hdwallet-provider and have ditched their previous PrivateKeyProvider solution.
• But @truffle/hdwallet-provider still won't work on Harmony, despite using all of the latest versions of Truffle + @truffle/hdwallet-provider

Acceptance Criteria

• [ ] Working example of @truffle/hdwallet-provider for Harmony testnet
• [ ] Bug fix PR to relevant repositories (if any)

Reward

$1000 equivalent in ONE tokens

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

---

This issue now has a funding of 6864.9452 ONE (998.47 USD @ $0.15/ONE) attached to it.

• If you would like to work on this issue you can 'start work' on the Gitcoin Issue Details page.
  • Want to chip in? Add your own contribution here.
  • Questions? Checkout Gitcoin Help or the Gitcoin's Discord
  • $1,953,475.86 more funded OSS Work available on the Gitcoin Issue Explorer

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

---

Work for 6864.9452 ONE (998.47 USD @ $0.15/ONE) has been submitted by:

---

• Learn more on the Gitcoin Issue Details page
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin's Discord
• $1,973,192.46 more funded OSS Work available on the Gitcoin Issue Explorer

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

---

Work for 6864.9452 ONE (1038.49 USD @ $0.16/ONE) has been submitted by:

1. @noahfigueras

@papiofficial please take a look at the submitted work:

• PR by @noahfigueras

---

• Learn more on the Gitcoin Issue Details page
• Want to chip in? Add your own contribution here.
• Questions? Checkout Gitcoin Help or the Gitcoin's Discord
• $1,974,847.91 more funded OSS Work available on the Gitcoin Issue Explorer

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

---

The funding of 6864.9452 ONE (990.26 USD @ $0.14/ONE) attached to this issue has been approved & issued to @noahfigueras.

• Learn more on the Gitcoin Issue Details page
• Questions? Checkout Gitcoin Help or the Gitcoin's Discord
• $2,032,583.03 more funded OSS Work available on the Gitcoin Issue Explorer