Nest packages under pkg

pkg/config/database.go

@@ -0,0 +1,13 @@
+package config
+
+import "fmt"
+
+type Database struct {
+	Hostname string
+	Name     string
+	Port     int
+}
+
+func DbConnectionString(dbConfig Database) string {
+	return fmt.Sprintf("postgresql://%s:%d/%s?sslmode=disable", dbConfig.Hostname, dbConfig.Port, dbConfig.Name)
+}