lesson 6 environment variables not working?

[rainbowginger]

I am following a solidity hardhat tutorial. Learning to deploy a contract to sepolia testnet.

Shows error when I am using environmental variables to provide network details.I cud deploy the contract if i provide the details directly.

hardhat.config.js

require("@nomicfoundation/hardhat-toolbox");
require("dotenv").config();

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL;
const SEPOLIA_PVT_KEY = process.env.SEPOLIA_PVT_KEY;
const SEPOLIA_CHAIN_ID = process.env.SEPOLIA_CHAIN_ID;

// commented section is working
// const SEPOLIA_RPC_URL =
//     "https://eth-sepolia.g.alchemy.com/v2/SYu8cyWG0EOfcfZVehXUoPMXW91om6Hd";
// const SEPOLIA_PVT_KEY =
//     "***********************************************************";
// const SEPOLIA_CHAIN_ID = 11155111;
module.exports = {
    defaultNetwork: "hardhat",
    networks: {
        sepolia: {
            url: SEPOLIA_RPC_URL,
            accounts: [SEPOLIA_PVT_KEY],
            chainId: SEPOLIA_CHAIN_ID,
        },
    },
    solidity: "0.8.18",
};

task("accounts", "Prints the list of accounts", async () => {
    const accounts = await ethers.getSigners();

    for (const account of accounts) {
        console.log(account.address);
    }
});

.env

SEPOLIA_RPC_URL=https://eth-sepolia.g.alchemy.com/v2/SYu8cyWG0EOfcfZVehXUoPMXW91om6Hd
SEPOLIA_PVT_KEY=***************************************************************
SEPOLIA_CHAIN_ID=11155111

error when using environment variables

blue@DESKTOP-A6GBG6O:~/solidity/hardhat-sss$ yarn hardhat run scripts/deploy.js --network sepolia
yarn run v1.22.19
$ /home/blue/solidity/hardhat-sss/node_modules/.bin/hardhat run scripts/deploy.js --network sepolia
Error HH8: There's one or more errors in your config file:

  * Invalid value {"url":"https://eth-sepolia.g.alchemy.com/v2/SYu8cyWG0EOfcfZVehXUoPMXW91om6Hd",
"accounts":["************************************************************"],"chainId":"11155111"} 
for HardhatConfig.networks.sepolia - Expected a value of type HttpNetworkConfig.

[alymurtazamemon]

@rainbowginger Do you have the dotenv dependency installed? leave your repo so I can test with my keys locally.

[alymurtazamemon]

@rainbowginger It is working fine; here is the result;

here is the network settings;

networks: {
    sepolia: {
        // url: RPC_URL,
        // accounts: [PVT_KEY],
        url: process.env.SEPOLIA_RPC_URL,
        accounts: [process.env.PRIVATE_KEY],
        chainId: 11155111,
    },
},

[rainbowginger]

then what might be my issue!
lemme try in in a different folder

[rainbowginger]

installed the repo in a different folder. i cant even run hardhat in that. same error

lue@DESKTOP-A6GBG6O:~/Chardat/solidity-fcc$ yarn hardhat
yarn run v1.22.19
$ /home/blue/Chardat/solidity-fcc/node_modules/.bin/hardhat
Error HH8: There's one or more errors in your config file:

  * Invalid value {"url":"https://eth-sepolia.g.alchemy.com/v2/SYu8cyWG0EOfcfZVehXUoPMXW91om6Hd","accounts":["***************************"],"chainId":"11155111"} for HardhatConfig.networks.Sepolia - Expected a value of type HttpNetworkConfig.

Its getting frustrating

[rainbowginger]

there is some issue which i cant solve. what shud i do? i tried running it from 2 different folders. same result

blue@DESKTOP-A6GBG6O:~/solidity-fcc$ yarn hardhat
yarn run v1.22.19
$ /home/blue/solidity-fcc/node_modules/.bin/hardhat
Error HH8: There's one or more errors in your config file:

  * Invalid value undefined for HardhatConfig.networks.Sepolia.url - Expected a value of type string.
  * Invalid account: #0 for network: Sepolia - Expected string, received undefined

[alymurtazamemon]

@rainbowginger Your env variables are undefined, and also your network settings are not correct, make sure to copy the network settings I provided below image above.

[rainbowginger]

I don't understand how they are undefined. I have added the variables in .env file. How would I define the variables? Network settings are working when directly assigned only when they are assigned through a environment variable. The error shows up. I don't know how to do what you are telling me to do. I don't understand it.

…

On Sat, Apr 29, 2023, 20:47 Ali Murtaza < ***@***.***> wrote: @rainbowginger Your env variables are undefined, and also your network settings are not correct, make sure to copy the network settings I provided below image above. —Reply to this email directly, vie *DuckDuckGo* removed 1 tracker. More → <https://duckduckgo.com/-wXmpP8QxS5-03oQoCi36fzMj3aQiUlQpaoQsRaFxbh6x7h6hNVT5kw9iS7GCxm5TqmavjzTTJV69gPWsW0L_jAxEiO6LdcNHI2A_wMA7HGsPvnw63J3F7CTi8UqoMFm1_iJWCvNfWE3u6ZJHzu0PwyLp_hN2PjxVRubENgbClFbfCAuaGzrspebaPObCldPbHcLs0tkARp0eCPPCktbeAY4Z8dx-VBbo9s54JHpLKuD-5guHAAd5c85ckcKsRvUPPuzHAkCmKe0FFNCmWM0xW5-Zq10iDQ> @rainbowginger <https://github.com/rainbowginger> Your env variables are undefined, and also your network settings are not correct, make sure to copy the network settings I provided below image above. — Reply to this email directly, view it on GitHub <#5395 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A3NHEVPRTBRGXN6XSUYBZ5TXDUWJXANCNFSM6AAAAAAXQDLAIA> . You are receiving this because you were mentioned.Message ID: <smartcontractkit/full-blockchain-solidity-course-js/repo-discussions/5395/comments/5762196 @github.com>

[rainbowginger]

@alymurtazamemon You were correct-this worked

networks: {
        Sepolia: {
            url: process.env.SEPOLIA_RPC_URL,
            accounts: [process.env.SEPOLIA_PVT_KEY],
            chainId: 11155111,
        },

But why is this not working

const RPC_URL = process.env.SEPOLIA_RPC_URL;
const PVT_KEY = process.env.SEPOLIA_PVT_KEY;
const CHAIN_ID = process.env.SEPOLIA_CHAIN_ID;

[rainbowginger]

I cud pinpoint the issue to chain id. Rest are working fine when used as env variables.

const RPC_URL = process.env.S_RPC_URL;
const PVT_KEY = process.env.S_P_KEY;
const CHAIN_ID = 11155111;


// const CHAIN_ID=process.env.S_CHAIN_ID;


    networks: {
        Sepolia: {
            url: RPC_URL,
            accounts: [PVT_KEY],
            chainId: CHAIN_ID,

[Bhavik-punmiya]

Thanks @rainbowginger and @alymurtazamemon , I had these same issue and couldn't continue the course , tried searching on different platforms for the solution but couldn't understand any and was getting frustrated.
Your Disscussion helped me and finally Contract got deployed

Thank you !!

$ "F:\HardHat Blockchain fcc\Hardhat simple-storage-fcc\node_modules\.bin\hardhat" run scripts/deploy.js --network Sepolia
Deploying , please wait... 
Done in 20.89s.

[rainbowginger]

@Bhavik-punmiya thank you. @alymurtazamemon is forever helpful and patient.

[pseudocode88]

I also faced the same issue while configuring, but I solved it. So I will share my insight.

Why const CHAIN_ID = process.env.SEPOLIA_CHAIN_ID; didn't work because process.env.SEPOLIA_CHAIN_ID is returning a string, and in the network object the expected type is integer. So you convert the string to integer using parseInt()

networks: {
    sepolia: {
        url: SEPOLIA_RPC_URL,
        accounts: [SEPOLIA_PVT_KEY],
        chainId: parseInt(SEPOLIA_CHAIN_ID),
      },
},

[rainbowginger]

Gr8

…

On Mon, 12 Jun, 2023, 16:46 Pseudo Code, < ***@***.***> wrote: I also faced the same issue while configuring, but I solved it. So I will share my insight. Why const CHAIN_ID = process.env.SEPOLIA_CHAIN_ID; didn't work because process.env.SEPOLIA_CHAIN_ID is retur *DuckDuckGo* removed 1 tracker. More → <https://duckduckgo.com/-fcssrtdQ4lmib_srSB_zCYaob_UqdCaNIyzQaKzlB_3MqMPIKzPQa2A8D67tD2KacdwdWhCaqJnux2KZouadvBr8WZax1g5x_69BZ7g9ZkmFYOC5aONLUL9R5S9N3vjHvZjY0woGIfsVhPQA8jKOWetchcdq_DFGBhJt> I also faced the same issue while configuring, but I solved it. So I will share my insight. Why const CHAIN_ID = process.env.SEPOLIA_CHAIN_ID; didn't work because process.env.SEPOLIA_CHAIN_ID is returning a string, and in the network object the expected type is integer. So you convert the string to integer using parseInt() networks: { sepolia: { url: SEPOLIA_RPC_URL, accounts: [SEPOLIA_PVT_KEY], chainId: parseInt(SEPOLIA_CHAIN_ID), }, }, — Reply to this email directly, view it on GitHub <#5395 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A3NHEVKW7UJLROXIUGK7DEDXK327JANCNFSM6AAAAAAXQDLAIA> . You are receiving this because you were mentioned.Message ID: <smartcontractkit/full-blockchain-solidity-course-js/repo-discussions/5395/comments/6151278 @github.com>