Added api endpoints and tests

config/config.go

@@ -10,6 +10,8 @@ var (
 
 	ServerPort string
 
+	Prefix string
+
 	DatabaseFile    string
 	ArticleTemplate string
 	FrontendDir     string
@@ -22,6 +24,8 @@ func init() {
 
 	ServerPort = os.Getenv("SERVER_PORT")
 
+	Prefix = os.Getenv("PREFIX")
+
 	DatabaseFile = os.Getenv("DATABASE_FILE")
 	ArticleTemplate = os.Getenv("ARTICLE_TEMPLATE")
 	FrontendDir = os.Getenv("FRONTEND_DIR")