Deploying a sequelize-cli app to heroku DATABASE_URL issue - heroku

Question

I'm using sequelize migrations. Here is my config.js:
require('dotenv').config()
module.exports = {
development: {
database: process.env.DEV_DATABASE,
host: process.env.DEV_HOST,
dialect: 'postgres'
},
test: {
database: process.env.TEST_DATABASE,
host: process.env.TEST_HOST,
dialect: 'postgres'
},
production: {
database: process.env.DATABASE_URL,
dialect: 'postgres'
},
}
When I deploy to heroku and run:
heroku run npx sequelize-cli db:migrate
I get the error:
Loaded configuration file "config/config.js".
Using environment "production".
ERROR: connect ECONNREFUSED 127.0.0.1:5432
I have tried changing my config to use_env_variable: DATABASE_URL and I get Error reading "config/config.js". Error: ReferenceError: DATABASE_URL is not defined
If I console.log(process.env.DATABASE_URL) I get something like:
postgres://bczwqcbnwftivi:80bbc89546c0953e0ffd221a950cac249d25d4ef1812127054af7c2f504b2c39#ec2-54-225-205-79.compute-1.amazonaws.com:5432/d8gsvl0n8qilcs

Answer 1

This worked:
{
"development": {
"database": "products_api_development",
"dialect": "postgres"
},
"test": {
"database": "products_api_test",
"dialect": "postgres"
},
"production": {
"use_env_variable": "DATABASE_URL",
"dialect": "postgres",
"dialectOptions": {
"ssl": true
}
}
}

Answer 2

Here's further documentation for configuring the sequelize config file.
More info on setting up environment variables on Heroku:
You can set up environment variables at https://dashboard.heroku.com/apps/[your-app-name]/settings. In the case of node.js those variables will then be available in your app using process.env.[variable-name].