# Configuration files

As you get deeper into development, you may need to interact with sensitive data or data that gets used in multiple locations, such as:

• Database passwords
• API keys
• Command prefix(es)
• A list of bot owner IDs

Having that kind of data hard-coded in each of your files can be a bit bothersome and is less than ideal, to say the least. This is where configuration files come in - they're great for storing static data that can be easily updated in a single place.

# Implementing your config file

Go to your code editor and make a new file. Add in the code below and save it as config.json, in the same directory as your main bot file.

{
	"prefix": "!",
	"token": "your-token-goes-here"
}

Go back to your main bot file, locate the const client = new Discord.Client() line, and add this above it:

const config = require('./config.json');

Next, copy your token from the client.login('your-token-goes-here') line and paste into the config.json file. Make sure to keep it between the double quotes.

Now you can simply do client.login(config.token) to login! If you want to use a different prefix than !, you can change that as well.

# Storing additional data

As previously mentioned, you'll probably want to store more than just your token and prefix at one point or another. If you want to store more data, just add another key/value pair to the list!

{
	"prefix": "!",
	"token": "your-token-goes-here",
	"meaning_of_life": 42,
	"passwords_array": ["please", "dont", "hack", "me"],
	"secret_passcodes": {
		"bank": 1234,
		"home": 4321
	}
}

# Resulting code

If you want to compare your code to the code we've constructed so far, you can review it over on the GitHub repository here .