indrasaputra/url-shortener

package config

import (
    "github.com/joeshaw/envdecode"
    "github.com/joho/godotenv"
    "github.com/pkg/errors"
)

// Redis holds configuration for the redis.
type Redis struct {
    Address  string `env:"REDIS_ADDRESS,required"`
    Username string `env:"REDIS_USERNAME"`
    Password string `env:"REDIS_PASSWORD"`
}

// Postgres holds configuration for PostgreSQL.
type Postgres struct {
    Host            string `env:"POSTGRES_HOST,required"`
    Port            string `env:"POSTGRES_PORT,required"`
    DBName          string `env:"POSTGRES_DBNAME,required"`
    User            string `env:"POSTGRES_USER,required"`
    Password        string `env:"POSTGRES_PASSWORD,required"`
    MaxOpenConns    int    `env:"POSTGRES_MAX_OPEN_CONNS,required"`
    MaxConnLifetime string `env:"POSTGRES_MAX_CONN_LIFETIME,required"`
}

// Config holds configuration for the project.
type Config struct {
    PortHTTP string `env:"PORT_HTTP,default=8081"`
    PortGRPC string `env:"PORT_GRPC,default=8080"`
    Domain   string `env:"DOMAIN,required"`
    Postgres Postgres
    Redis    Redis
}

// NewConfig creates an instance of Config.
// It needs the path of the env file to be used.
func NewConfig(env string) (*Config, error) {
    _ = godotenv.Load(env)

    var config Config
    if err := envdecode.Decode(&config); err != nil {
        return nil, errors.Wrap(err, "[NewConfig] error decoding env")
    }

    return &config, nil
}