Configuration

The config module loads configuration from environment variables and .env files.

Setup

import "github.com/0xfurai/gonest/config"

var ConfigModule = config.NewModule(config.ModuleOptions{
    EnvFilePath: ".env",
    IsGlobal:    true,
})

Usage

Inject *config.ConfigService into any provider:

func NewDatabaseService(cfg *config.ConfigService) *DatabaseService {
    return &DatabaseService{
        host: cfg.GetOrDefault("DB_HOST", "localhost"),
        port: cfg.GetIntOrDefault("DB_PORT", 5432),
    }
}

API

Method	Returns	Description
`Get(key)`	`string`	Get value (env file, then OS env)
`GetOrDefault(key, default)`	`string`	With fallback
`GetInt(key)`	`int, error`	Parse as int
`GetIntOrDefault(key, default)`	`int`	Int with fallback
`GetBool(key)`	`bool, error`	Parse as bool
`GetBoolOrDefault(key, default)`	`bool`	Bool with fallback
`Has(key)`	`bool`	Check existence
`Set(key, value)`	—	Set at runtime

.env File Format

DB_HOST=localhost
DB_PORT=5432
DB_NAME="mydb"
DB_PASS='secret'
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