Genesis

src/api/index.js

@@ -0,0 +1,69 @@
+// Single source of truth for all backend communication.
+
+async function http(path, { method = 'GET', body } = {}) {
+  const headers = { 'Content-Type': 'application/json' };
+
+  const res = await fetch(path, {
+    method,
+    headers,
+    credentials: 'include',
+    body: body ? JSON.stringify(body) : undefined,
+  });
+
+  if (!res.ok) {
+    let message = res.statusText;
+    let data;
+    try {
+      data = await res.json();
+      message = data.error || data.message || message;
+    } catch {
+      message = (await res.text().catch(() => message)) || message;
+    }
+    const err = new Error(message || `Request failed (${res.status})`);
+    err.status = res.status;
+    err.data = data;
+    throw err;
+  }
+  if (res.status === 204) return null;
+  return res.json();
+}
+
+export const auth = {
+  async me() {
+    try {
+      const data = await http('/api/auth/me');
+      return {
+        user: data.user ?? null,
+        googleClientId: data.googleClientId ?? null,
+      };
+    } catch (err) {
+      if (err.status === 401 || err.status === 403) {
+        return {
+          user: null,
+          googleClientId: err.data?.googleClientId ?? null,
+          forbidden: err.status === 403,
+          message: err.message,
+        };
+      }
+      throw err;
+    }
+  },
+
+  async loginWithGoogle(idToken) {
+    const data = await http('/api/auth/login', {
+      method: 'POST',
+      body: { idToken },
+    });
+    return { user: data.user };
+  },
+
+  async logout() {
+    try {
+      await http('/api/auth/logout', { method: 'POST' });
+    } catch (err) {
+      if (err.status !== 401) throw err;
+    }
+  },
+};
+
+export default { auth };