refactor(backend): Centralize environment variable loading in config.go

1 files changed, 35 insertions, 0 deletions

diff --git a/backend/config.go b/backend/config.go
new file mode 100644
index 0000000..c66100e
--- /dev/null
+++ b/backend/config.go
@@ -0,0 +1,35 @@
+package main
+
+import (
+	"errors"
+	"os"
+)
+
+var (
+	ErrNoSessionSecretEnvVar = errors.New("FEEDAKA_SESSION_SECRET environment variable is not set")
+)
+
+type Config struct {
+	Port               string
+	SessionSecret      string
+	DevNonSecureCookie bool
+}
+
+func LoadConfig() (*Config, error) {
+	port := os.Getenv("FEEDAKA_PORT")
+	sessionSecret := os.Getenv("FEEDAKA_SESSION_SECRET")
+	devNonSecureCookie := os.Getenv("FEEDAKA_DEV_NON_SECURE_COOKIE")
+
+	if port == "" {
+		port = "8080"
+	}
+	if sessionSecret == "" {
+		return nil, ErrNoSessionSecretEnvVar
+	}
+
+	return &Config{
+		Port:               port,
+		SessionSecret:      sessionSecret,
+		DevNonSecureCookie: devNonSecureCookie == "1",
+	}, nil
+}