infra: deployment configuration

Author: rabbull

README.md

@@ -14,7 +14,9 @@ The public-facing EzClaim web app lets ACSSZ members submit reimbursements witho
 pnpm install
 pnpm dev
 ```
-The app assumes the API at `http://localhost:8080`; override via `NEXT_PUBLIC_API_BASE_URL` in `.env.local` when needed.
+Development defaults to the API at `http://localhost:8080`; production builds fall back to
+`https://ezclaim.liuzisen.com`. Override via `NEXT_PUBLIC_API_BASE_URL` in `.env.local` (or
+`.env.production`) when needed.
 
 ## License
 Licensed under the Do What The Fuck You Want To Public License (WTFPL). See [`LICENCE`](LICENCE).

src/lib/api.ts

@@ -10,7 +10,12 @@ export class HttpError extends Error {
   }
 }
 
-const API_BASE = process.env.NEXT_PUBLIC_API_BASE_URL || 'http://localhost:8080';
+const defaultApiBase =
+  process.env.NODE_ENV === 'production'
+    ? 'https://ezclaim.liuzisen.com'
+    : 'http://localhost:8080';
+
+const API_BASE = process.env.NEXT_PUBLIC_API_BASE_URL || defaultApiBase;
 
 async function http<T>(path: string, init?: RequestInit): Promise<T> {
   const hasBody = typeof init?.body !== 'undefined' && init?.body !== null;