Example of how to implement a Go application with two environments.

When we are developing real world applications, we often use more than one environment, a production and development one, for example.

This is an approach of how to implement two environments using go, in a simple way.

Environment folder structure:

├── config
│   └── config.go
│   └── development
│   │   └── database.go
│   └── production
│   │   └── database.go

each database.go has it's own implementation of the function GetSource().

config.go defines a list of databaseSources, that uses the environment name as map key, and call it's onw GetSource function.

To make it work, you need to create a localhost PostgreSQL database named database_test with user juniorbarros and without password.

You also need a table with the name customers and the attributes: id, name, email