96 ensure defaults in env vars

api/main.go

@@ -105,7 +105,7 @@ func addRequestID() gin.HandlerFunc {
 }
 
 func logger() gin.HandlerFunc {
-	if os.Getenv("AUTH_SERVER_APP_ENV") == "dev" {
+	if util.IsDevEnvironment() {
 		return gin.Logger()
 	}
 

authenticator/interactors/implementation/authenticator.go

@@ -18,7 +18,7 @@ type authenticator struct {
 	repository     user.Repository
 	emailSender    email.Sender
 	ExpirationTime int    `env:"TOKEN_EXPIRATION" envDefault:"3600"`
-	Secret         string `env:"AUTH_SERVER_SECRET"`
+	Secret         string `env:"AUTH_SERVER_SECRET" envDefault:"super-secret"`
 }
 
 func NewAuthenticator(repository user.Repository, sender email.Sender) interactors.Authenticator {

database/user/sqlite/sqlite.go

@@ -15,9 +15,9 @@ import (
 type sqliteStorage struct {
 	db       *gorm.DB
 	Name     string `env:"AUTH_SERVER_DATABASE_NAME" envDefault:"sqlite.s3db"`
-	User     string `env:"AUTH_SERVER_DATABASE_USER"`
-	Password string `env:"AUTH_SERVER_DATABASE_PASSWORD"`
-	Salt     string `env:"AUTH_SERVER_DATABASE_SALT"`
+	User     string `env:"AUTH_SERVER_DATABASE_USER" envDefault:"admin"`
+	Password string `env:"AUTH_SERVER_DATABASE_PASSWORD" envDefault:"secure-password"`
+	Salt     string `env:"AUTH_SERVER_DATABASE_SALT" envDefault:"salted"`
 }
 
 func NewSqliteStorage() (user.Repository, func()) {

email/providers/smtp.go

@@ -30,11 +30,11 @@ func NewSMTPSender() email.Provider {
 	}
 
 	if sender.Username == "" {
-		contextLogger.Panic("a username is required", err)
+		contextLogger.Panic("AUTH_SERVER_SMTP_USERNAME env variable is not set", err)
 	}
 
 	if sender.Password == "" {
-		contextLogger.Panic("a password is required", err)
+		contextLogger.Panic("AUTH_SERVER_SMTP_PASSWORD env variable is not set", err)
 	}
 
 	sender.dialer = gomail.NewDialer(sender.Host, sender.Port, sender.Username, sender.Password)

tools/util/global_config.go

@@ -0,0 +1,33 @@
+package util
+
+import (
+	"github.com/bixlabs/authentication/tools"
+	"github.com/caarlos0/env"
+)
+
+var config GlobalConfig //nolint
+
+func IsDevEnvironment() bool {
+	return newConfig().Env == "dev"
+}
+
+type GlobalConfig struct {
+	Env string `env:"AUTH_SERVER_APP_ENV" envDefault:"dev"`
+}
+
+func newConfig() GlobalConfig {
+	if config.Env != "" {
+		return config
+	}
+	parseConfiguration()
+	return config
+}
+
+func parseConfiguration() GlobalConfig {
+	config = GlobalConfig{}
+	err := env.Parse(&config)
+	if err != nil {
+		tools.Log().WithError(err).Panic("parsing the env variables for global configuration failed")
+	}
+	return config
+}