Mail api for sending order confirmation to planetposen customers

config/config.go

@@ -0,0 +1,28 @@
+// Package config handles environment variables.
+package config
+
+import (
+	"github.com/joho/godotenv"
+	"github.com/kelseyhightower/envconfig"
+	log "github.com/sirupsen/logrus"
+)
+
+// Config contains environment variables.
+type Config struct {
+	Port                       string  `envconfig:"PORT" default:"8000"`
+	SendGridAPIEndpoint        string  `envconfig:"SEND_GRID_API_ENDPOINT" required:"true"`
+	SendGridAPIKey             string  `envconfig:"SEND_GRID_API_KEY" required:"true"`
+}
+
+// LoadConfig reads environment variables, populates and returns Config.
+func LoadConfig() (*Config, error) {
+	if err := godotenv.Load(); err != nil {
+		log.Info("No .env file found")
+	}
+
+	var c Config
+
+	err := envconfig.Process("", &c)
+
+	return &c, err
+}