OptionsWhatIf — Next.js

Stock Option Profit Calculator — Next.js 16.1 / App Router / Netlify.

Local Development

For most development (no Netlify Blobs needed):

pnpm dev

Important: Local development that requires Netlify Blobs (token storage for Schwab OAuth) must use the Netlify CLI instead:

pnpm dev:netlify

This starts netlify dev, which provides the Netlify Blobs runtime locally. Use this whenever you need the Schwab OAuth flow or quote fetching to work end-to-end.

Initial Schwab Auth Setup

On first deploy to Netlify:

1. Visit /api/auth/schwab/login in your browser.
2. You will be redirected to Schwab's authorization page — log in and approve access.
3. Schwab redirects back to /api/auth/schwab/callback, which exchanges the code for tokens and stores them in Netlify Blobs.
4. All subsequent token refreshes are handled automatically by the server — no manual steps needed.

Environment Variables

Copy .env.local and fill in your Schwab credentials:

SCHWAB_API_KEY=        # Your Schwab app client ID
SCHWAB_API_SECRET=     # Your Schwab app client secret
SCHWAB_REDIRECT_URI=   # Must match what's registered in your Schwab app

NETLIFY_SITE_ID and NETLIFY_TOKEN are provided automatically by the Netlify runtime — do not add them manually.

Build & Deploy

Deployed on Netlify. Build configuration is in netlify.toml.

pnpm build   # production build