POST /api/send-invoice - Send invoice to client
POST /api/test-email - Test email functionality
GET / - This homepage
fetch('http://localhost:3000/api/send-invoice', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
to: 'client@email.com',
subject: 'Invoice #INV-001',
html: '<h1>Your Invoice</h1>',
invoiceNo: 'INV-001',
clientName: 'Client Name'
})
})