How to add environment variables in config.json? - environment-variables

Question

I am working on a database migration project and it requires me to use sequelize. I initialized sequelize's CLI (using npx sequelize-cli init) that added the config.json file:
config, contains config file, which tells CLI how to connect with database
The config.json file has this object:
"production": {
"username": "root",
"password": null,
"database": "database_production",
"host": "127.0.0.1",
"dialect": "mysql"
}
But I don't want to save my password in a config.json file. I want to use an environmental variable instead. What can I do?

Answer 1

Rename the config.json to config.js, install dotenv and use the below code
require('dotenv').config();
module.exports = {
development: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
},
test: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
},
production: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
}
};

Answer 2

First you have to create a .sequelizerc file in root. Then add the following code there.
var path = require('path')
module.exports = {
'config': path.resolve('config', 'config.js'),
}
Note: Change the path as per your project.
Then you can rename the config.json file to config.js and add the below code there. (As in Tunde's answer.)
require('dotenv').config();
module.exports = {
development: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
},
test: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
},
production: {
username: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
host: process.env.DB_HOST,
dialect: process.env.DB_DRIVER
}
};