Add telemetry to standalone example (#47)

* Add telemetry to standalone example

* Test for lints in CI

.github/workflows/main.yml

@@ -34,13 +34,13 @@ jobs:
       - name: Lint Rust package
         run: cargo clippy --all-features --locked -- -D warnings
       - name: Test JS package
-        run: depot test
+        run: depot build --lint-fail && depot test
         working-directory: js
       - name: Install mdbook-quiz
         run: cargo install --path crates/mdbook-quiz --debug --locked
       - name: Build example mdbook
         run: mdbook build
         working-directory: example/mdbook
       - name: Build example standalone
-        run: depot build
+        run: depot build --lint-fail
         working-directory: example/standalone

example/standalone/src/index.tsx

@@ -4,6 +4,7 @@ import React from "react";
 import ReactDOM from "react-dom/client";
 
 import quizStr from "./quiz-example.toml?raw";
+import "./telemetry";
 
 let App = () => {
   let quiz = TOML.parse(quizStr) as any as Quiz;

example/standalone/src/telemetry.ts

@@ -0,0 +1,23 @@
+const BASE_URL = "http://localhost:8888";
+
+class Telemetry {
+  async log(endpoint: string, payload: object) {
+    let url = `${BASE_URL}/${endpoint}`;
+
+    let response = await fetch(url, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json"
+      },
+      body: JSON.stringify(payload)
+    });
+
+    if (!response.ok) {
+      throw new Error(`Failed to log with status: ${response.statusText} `);
+    }
+  }
+}
+
+if (typeof window !== "undefined") {
+  window.telemetry = new Telemetry();
+}