nodejs chaning env variable at runtime

To change an environment variable at runtime in a Node.js application, you can follow these steps:

Step 1: Access the process.env object

The process.env object in Node.js provides access to the environment variables. It is a global object that contains key-value pairs of the environment variables. You can access and modify the environment variables using this object.

Step 2: Update the environment variable

To change the value of an environment variable, you can simply assign a new value to the corresponding property in the process.env object. For example, if you want to change the value of an environment variable named MY_VARIABLE, you can do the following:

process.env.MY_VARIABLE = 'new value';

Step 3: Verify the change

After updating the environment variable, you can verify the change by accessing the updated value from the process.env object. For example, you can log the updated value to the console:

console.log(process.env.MY_VARIABLE);

This will output the new value of the environment variable.

It's important to note that changing the value of an environment variable at runtime will only affect the current instance of the Node.js process. If you restart the process or start a new process, the environment variable will revert to its original value.

Please let me know if you need further assistance!