How to create and use environment variables in an .env file in NextJS
A step by step guide on creating a .env file, defining environment variables and using them in a NextJS project.
A step by step guide on creating a .env file, defining environment variables and using them in a NextJS project.
SubscribeDownload Open Source ProjectStep One: Create the .env file
At the root of the project, create a new file called .env.
Step Two: Define the Environment Variables
In NextJS, environment variables can be called whatever you like.
Please note that if you wish for the environment variable to be available in the client you must use NEXT_PUBLIC_ prefix.
Step Three: Use the Environment Variables
Within your project you can use environment variables through the syntax process.env.VARIABLE_NAME.
In the example above, we used process.env.SAMPLE_VARIABLE as that was the variable that we defined in Step Two.
Step Four: Run
Confirm that everything works as expected by running the project locally and deploying the change to Vercel.
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