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Ethereum Hardhat Project Configuration Issue With INFURA API KEY

As you’re setting up a new npx hardhat project, you’re encountering an error wen traying to import This issue is relatively comomon and can be resoled by understanding how to properly project project.

The Error: HH1201 Cannot find a value for the configuration variable ‘INFURA_API_KEY’

Error HH1201 indicates, that INFURA_API_KEY configuration variable cannot be in your? This error usually occurs the code to the access to the event of an environment variable, but it’s not section.

How ​​to Fix the Issue: Read Your .env File

To resolve this issue, you need to ensure that your .env file is properly configured with the Infura API key. Here are a festival to help you fix the Problem:

Step 1: Create a New .env File

Create a new file name .env in theroot of your program. This fire is all right all the environment variables.

touch .env

Step 2: Add Infura API Key to Your

Add the following line to .env file:

INFURA_API_KEY=YOUR_INFURA_API_KEY_HERE

Replac YOUR_INFURA_API_KEY_HERE with your actual Infura API key.

For example, if you’re a private ky or an environment variable for yourour Infura API key, you candd itli this like that.

INFURA_API_KEY=YOUR_PRIVATE_KEY_HERE

Step 3: Update Your Hardhat Configuration

To use Infura API in your Hardhat project, you will have to have update the configument variables. Specifically, you need to set INFURA_API_KEY variable.

You can do by adding an infuraConfig.json file to your project with the following of the content:

`json

{

"key": "",

"secret": ""

}

If you're a private key is variable for your infura API key, update theINFURA_API_KEYField.



Step 4: Update Your Hardhat Project Configuration


Update thehardhat.config.jsfile to ve the updated configuration variables. Specifically, add the following line:


javascript

module.exports = {

    // ... all configurations ...

    defaultConfig: {

        // ... all configurations ...

        infura: {

            Key: process.env.INFURA_API_KEY,

            secret: process.env.INFURA_SECRET

        }

    },

};

Step 5: Run Your Hardhat Project

Finally, run your Hardhat project use

npx hardhat

The INFURA_API_KEYvariable should be not the properly for your your Infura API key.

Example Use Case

Here's an examplee to to the simple of configuration in a simple smart contraction deployment:

javascript

const ethers = require('eters');

// Hardhat configurations

module.exports = {

// ... all configurations ...

defaultConfig: {

// ... all configurations ...

infura: {

Key: process.env.INFURA_API_KEY,

secret: process.env.INFURA_SECRET

}

},

};

// Smart contracted deployment

const deployer = new ethers.Deployer('0x...'); // replace with your deployed contraactic

async function main() {

triy {

const contractAddress = await deployer.address();

console.log(contractAddress);

} catch (error) {

console.error(error);

}

}

main();

“

By following theese, you chauld it to the resolve

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