```shell curl --location \ --request POST 'https://api.wafeq.com/v1/api-invoices/bulk_send/' \ --header 'Authorization: Api-Key ' \ --header 'Content-Type: application/json' \ --data-raw '[ { "reference": "X-1234", "invoice_number": "INV-1234", "invoice_date": "2021-01-01", "currency": "SAR", "paid_through_account": "", "language": "en", "tax_amount_type": "TAX_INCLUSIVE", "contact": { "name": "Ahmed A.", "address": "Ahmed A. Building, first floor, Riyadh, Saudi Arabia", "email": "" }, "channels": [ { "medium": "email", "data": { "subject": "Invoice X from the Company of Abdullah S. Trading", "message": "

Please find attached your invoice.

", "recipients": { "to": [ "" ], "cc": [], "bcc": [] } } } ], "line_items": [ { "name": "Item 1", "description": "Item description 1", "account": "", "quantity": 2, "price": 40.00, "tax_rate": "", "discount": {"value": 10, "type": "amount"} }, { "name": "Item 2", "description": "Item description 2", "account": "", "quantity": 3, "price": 20.00, "tax_rate": "", "discount": {"value": 10, "type": "percent"} } ] } ]' ```

Calling the API whenever you want to issue an invoice to your customer