Hey guys I’m trying to clone this git repo and trying to set it up on my laptop. Unfortunetly I get a lot of errors and got stuck.
Would appreciate if someone could help me out. 
it looks like you have to provide a private key or a mnemonic for HDWalletProvider
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Yeah right, I thought the same so I created a new test wallet for it. But still figuring where to put the key.
@truffle/hdwallet-provider
HD Wallet-enabled Web3 provider. Use it to sign transactions for addresses derived from a 12 or 24 word mnemonic.
Install
$ npm install @truffle/hdwallet-provider
Requirementsnov
Node >= 12
Web3 ^1.2.0
General Usage
You can use this provider wherever a Web3 provider is needed, not just in Truffle. For Truffle-specific usage, see next section.
By default, the HDWalletProvider will use the address of the first address that’s generated from the mnemonic. If you pass in a specific index, it’ll use that address instead.
Instantiation
You can instantiate hdwallet-provider with options passed in an object with
named keys. You can specify the following options in your object:
Parameters:
| Parameter | Type | Default | Required | Description |
| ------ | ---- | ------- | ----------- | ----------- |
| mnemonic | object\|string | null | [ ] | Object containing phrase and password (optional) properties. phrase is a 12 word mnemonic string which addresses are created from. Alternately the value for mnemonic can be a string with your mnemonic phrase. |
| privateKeys | string[] | null | [ ] | Array containing 1 or more private keys. |
| providerOrUrl | string\|object | null | [x] | URI or Ethereum client to send all other non-transaction-related Web3 requests |
| addressIndex | number | 0 | [ ] | If specified, will tell the provider to manage the address at the index specified |
| numberOfAddresses | number | 1 | [ ] | If specified, will create numberOfAddresses addresses when instantiated |
| shareNonce | boolean | true | [ ] | If false, a new WalletProvider will track its own nonce-state |
| derivationPath | string | "m/44'/60'/0'/0/" | [ ] | If specified, will tell the wallet engine what derivation path should use to derive addresses. |
| pollingInterval | number | 4000 | [ ] | If specified, will tell the wallet engine to use a custom interval when polling to track blocks. Specified in milliseconds. |
| chainId | number/|string | undefined | [ ] | Specify to enable signed transactions that are EIP-155 compliant for major chains. |
Some examples can be found below:
const HDWalletProvider = require("@truffle/hdwallet-provider");
const Web3 = require("web3");
const mnemonicPhrase = "mountains supernatural bird..."; // 12 word mnemonic
let provider = new HDWalletProvider({
mnemonic: {
phrase: mnemonicPhrase
},
providerOrUrl: "http://localhost:8545"
});
// Or, alternatively pass in a zero-based address index.
provider = new HDWalletProvider({
mnemonic: mnemonicPhrase,
providerOrUrl: "http://localhost:8545",
addressIndex: 5
});
// Or, use your own hierarchical derivation path
provider = new HDWalletProvider({
mnemonic: mnemonicPhrase,
providerOrUrl: "http://localhost:8545",
numberOfAddresses: 1,
shareNonce: true,
derivationPath: "m/44'/137'/0'/0/"
});
// To make HDWallet less "chatty" over JSON-RPC,
// configure a higher value for the polling interval.
provider = new HDWalletProvider({
mnemonic: {
phrase: mnemonicPhrase
},
providerOrUrl: "http://localhost:8545",
pollingInterval: 8000
});
// HDWalletProvider is compatible with Web3. Use it at Web3 constructor, just like any other Web3 Provider
const web3 = new Web3(provider);
// Or, if web3 is alreay initialized, you can call the 'setProvider' on web3, web3.eth, web3.shh and/or web3.bzz
web3.setProvider(provider)
// ...
// Write your code here.
// ...
// At termination, `provider.engine.stop()' should be called to finish the process elegantly.
provider.engine.stop();
Note: If both mnemonic and private keys are provided, the mnemonic is used.
Using the legacy interface (deprecated)
The legacy interface is deprecated and it is recommended to pass options in an
object as detailed above. The following method of passing options is here
primarily to document the interface thoroughly and avoid confusion.
You can specify the following options in the order below.
Pass undefined if you want to omit a parameter.
Parameters:
| Parameter | Type | Default | Required | Description |
| ------ | ---- | ------- | ----------- | ----------- |
| mnemonic/privateKeys | string/string[] | null | [x] | 12 word mnemonic which addresses are created from or array of private keys. |
| providerOrUrl | string\|object | null | [x] | URI or Ethereum client to send all other non-transaction-related Web3 requests |
| addressIndex | number | 0 | [ ] | If specified, will tell the provider to manage the address at the index specified |
| numberOfAddresses | number | 1 | [ ] | If specified, will create numberOfAddresses addresses when instantiated |
| shareNonce | boolean | true | [ ] | If false, a new WalletProvider will track its own nonce-state |
| derivationPath | string | "m/44'/60'/0'/0/" | [ ] | If specified, will tell the wallet engine what derivation path should use to derive addresses. |
| chainId | number/|string | undefined | [ ] | Specify to enable signed transactions that are EIP-155 compliant for major chains. |
Instead of a mnemonic, you can alternatively provide a private key or array of
private keys as the first parameter. When providing an array, addressIndex
and numberOfAddresses are fully supported.
const HDWalletProvider = require("@truffle/hdwallet-provider");
//load single private key as string
let provider = new HDWalletProvider("3f841bf589fdf83a521e55d51afddc34fa65351161eead24f064855fc29c9580", "http://localhost:8545");
// Or, pass an array of private keys, and optionally use a certain subset of addresses
const privateKeys = [
"3f841bf589fdf83a521e55d51afddc34fa65351161eead24f064855fc29c9580",
"9549f39decea7b7504e15572b2c6a72766df0281cea22bd1a3bc87166b1ca290",
];
provider = new HDWalletProvider(privateKeys, "http://localhost:8545", 0, 2); //start at address_index 0 and load both addresses
**NOTE: This is just an example. NEVER hard code production/mainnet private
keys in your code or commit them to git. They should always be loaded from
environment variables or a secure secret management system.**
Truffle Usage
You can easily use this within a Truffle configuration. For instance:
truffle-config.js
const HDWalletProvider = require("@truffle/hdwallet-provider");
const mnemonicPhrase = "mountains supernatural bird ...";
module.exports = {
networks: {
development: {
host: "localhost",
port: 8545,
network_id: "*" // Match any network id
},
ropsten: {
// must be a thunk, otherwise truffle commands may hang in CI
provider: () =>
new HDWalletProvider({
mnemonic: {
phrase: mnemonicPhrase
},
providerOrUrl: "https://ropsten.infura.io/v3/YOUR-PROJECT-ID",
numberOfAddresses: 1,
shareNonce: true,
derivationPath: "m/44'/1'/0'/0/"
}),
network_id: '3',
}
}
};
Alright guys I found that I had to put my key into the truffle-config.js file
// Set a timeout in memory - this block will throw if the server takes more
// than `timeout` to write the HTTP status and headers (corresponding to
// the on('response') event on the client). NB: this measures wall-clock
// time, not the time between bytes sent by the server.
self.timeoutTimer = setTimeout(function () {
socket.removeListener('connect', onReqSockConnect)
self.abort()
var e = new Error('ETIMEDOUT')
e.code = 'ETIMEDOUT'
e.connect = true
self.emit('error', e)
}, timeout)
} else {
// We're already connected
setReqTimeout()
}Alright I could fix that too. Always make sure ur rpc is the correct one