Starting anew, before I changed to a custom chart

server/src/mainRouter.ts

@@ -0,0 +1,35 @@
+import express from "express";
+import {ClayPIError, GenericPersistenceError} from "./errors";
+import newSnapshotRouter from "./snapshotRouter";
+import {CollectionRegistry} from "./Collections";
+
+export function newMainRouter(collections: CollectionRegistry) {
+    const router = express.Router();
+    const snapshotRouter = newSnapshotRouter(collections);
+
+    router.get("/dashboard", (req, res) => {
+        res.render("index.ejs", { rootUrl: req.app.locals.rootUrl });
+    });
+    router.use("/api/snapshots", snapshotRouter);
+    router.use(topLevelErrorHandler);
+
+    return router;
+}
+
+const topLevelErrorHandler: express.ErrorRequestHandler = (err, req, res, next) => {
+    const errOutput = {
+        error: true,
+        message: "",
+    };
+    if (err instanceof GenericPersistenceError) {
+        errOutput.message = `An error occurred accessing the database: ${err.displayMessage}`;
+    }
+    else if (err instanceof ClayPIError) {
+        errOutput.message = `An error occurred: ${err.displayMessage}`;
+    }
+    else {
+        errOutput.message = "An unknown error occurred!";
+    }
+    console.log({...errOutput, internalMessage: err.message});
+    res.status(500).send(errOutput);
+};