start backend work

projects/backend/src/common/app-utils.ts

@@ -0,0 +1,10 @@
+/**
+ * Gets the app version.
+ */
+export function getAppVersion() {
+  if (!process.env.APP_VERSION) {
+    const packageJson = require("../../package.json");
+    process.env.APP_VERSION = packageJson.version;
+  }
+  return process.env.APP_VERSION + "-" + (process.env.GIT_REV?.substring(0, 7) ?? "dev");
+}

projects/backend/src/controller/app.ts

@@ -0,0 +1,13 @@
+import { Controller, Get } from "elysia-decorators";
+import { getAppVersion } from "../common/app-utils";
+
+@Controller("/")
+export default class AppController {
+  @Get()
+  public index() {
+    return {
+      app: "backend",
+      version: getAppVersion(),
+    };
+  }
+}

projects/backend/src/index.ts

@@ -0,0 +1,53 @@
+import { Elysia } from "elysia";
+import cors from "@elysiajs/cors";
+import { decorators } from "elysia-decorators";
+import { logger } from "@tqman/nice-logger";
+import AppController from "./controller/app";
+
+const app = new Elysia();
+
+/**
+ * Custom error handler
+ */
+app.onError({ as: "global" }, ({ code, error }) => {
+  // Return default error for type validation
+  if (code === "VALIDATION") {
+    return error.all;
+  }
+
+  let status = "status" in error ? error.status : undefined;
+  return {
+    ...((status && { statusCode: status }) || { status: code }),
+    ...(error.message != code && { message: error.message }),
+    timestamp: new Date().toISOString(),
+  };
+});
+
+/**
+ * Enable CORS
+ */
+app.use(cors());
+
+/**
+ * Request logger
+ */
+app.use(
+  logger({
+    mode: "combined",
+  })
+);
+
+/**
+ * Controllers
+ */
+app.use(
+  decorators({
+    controllers: [AppController],
+  })
+);
+
+app.onStart(() => {
+  console.log("Listening on port http://localhost:8080");
+});
+
+app.listen(8080);