talking to mongodb, god knows where this is leading us

backend/app.js

@@ -21,6 +21,10 @@ db.on("error", console.error.bind(console, "connection error:"));
 db.once("open", function() {
     console.log("on est connecté!");
 });
+
+
+toucans.updateMany({}, {"$set":{"toucan_id": { "$concat": ["$title", "-", { $year: "$date" }]}}});
+
 app.use(cors());
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({extended: true}));