Convert routes to Express

src/node/routes/health.ts

@@ -1,22 +1,10 @@
-import { Heart } from "../heart"
-import { HttpProvider, HttpProviderOptions, HttpResponse } from "../http"
+import { Router } from "express"
 
-/**
- * Check the heartbeat.
- */
-export class HealthHttpProvider extends HttpProvider {
-  public constructor(options: HttpProviderOptions, private readonly heart: Heart) {
-    super(options)
-  }
+export const router = Router()
 
-  public async handleRequest(): Promise<HttpResponse> {
-    return {
-      cache: false,
-      mime: "application/json",
-      content: {
-        status: this.heart.alive() ? "alive" : "expired",
-        lastHeartbeat: this.heart.lastHeartbeat,
-      },
-    }
-  }
-}
+router.get("/", (req, res) => {
+  res.json({
+    status: req.heart.alive() ? "alive" : "expired",
+    lastHeartbeat: req.heart.lastHeartbeat,
+  })
+})