Unable to unlock account or send transaction using web3.js [duplicate]

Question

I'm new to Ethereum Blockchain. I have been trying to send ether using web3.js npm. Here's my code

const testnet = `https://ropsten.infura.io/${process.evn.ACCESS_TOKEN}`;
let web3 = new Web3(new Web3.providers.HttpProvider(testnet));

web3.eth.personal.unlockAccount(adminWalletAddress, password, 1000)
.then(data => console.log(data))
.catch(err => console.log(err))

I'm getting an error response -

Error: Invalid JSON RPC response: ""
at Object.InvalidResponse (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/web3-core-helpers/src/errors.js:42:16)
at XMLHttpRequest.request.onreadystatechange (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/web3-providers-http/src/index.js:73:32)
at XMLHttpRequestEventTarget.dispatchEvent (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/xhr2/lib/xhr2.js:64:18)
at XMLHttpRequest._setReadyState (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/xhr2/lib/xhr2.js:354:12)
at XMLHttpRequest._onHttpResponseEnd (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/xhr2/lib/xhr2.js:509:12)
at IncomingMessage.<anonymous> (/home/rplanx/Dwip/node_ethereum/web3-1-x-x-contract-transaction/node_modules/xhr2/lib/xhr2.js:469:24)
at IncomingMessage.emit (events.js:185:15)
at endReadableNT (_stream_readable.js:1106:12)
at process._tickCallback (internal/process/next_tick.js:178:19)

The response is same for web3.eth.sendTransaction method. I'm using [email protected]. Faced the same issue when using [email protected]

Answer 1

This account unlock is valid if you have your keys in the node and this is not the case with Infura. You need to build the transaction and sign it with your private key. Then, you can use sendRawTransaction method. Even if Infura is accepting this (which I do not think so) this absolutely insecure to do, because your keys would be in control of someone else.