LaravelDaily\Invoices\InvoiceServiceProvider::class,

'Invoice' => LaravelDaily\Invoices\Facades\Invoice::class

use LaravelDaily\Invoices\Invoice;
use LaravelDaily\Invoices\Classes\Buyer;
use LaravelDaily\Invoices\Classes\InvoiceItem;

<...>

        $customer = new Buyer([
            'name'          => 'John Doe',
            'custom_fields' => [
                'email' => '[email protected]',
            ],
        ]);

        $item = (new InvoiceItem())->title('Service 1')->pricePerUnit(2);

        $invoice = Invoice::make()
            ->buyer($customer)
            ->discountByPercent(10)
            ->taxRate(15)
            ->shipping(1.99)
            ->addItem($item);

        return $invoice->stream();

use LaravelDaily\Invoices\Invoice;
use LaravelDaily\Invoices\Classes\Party;
use LaravelDaily\Invoices\Classes\InvoiceItem;

<...>

        $client = new Party([
            'name'          => 'Roosevelt Lloyd',
            'phone'         => '(520) 318-9486',
            'custom_fields' => [
                'note'        => 'IDDQD',
                'business id' => '365#GG',
            ],
        ]);

        $customer = new Party([
            'name'          => 'Ashley Medina',
            'address'       => 'The Green Street 12',
            'code'          => '#22663214',
            'custom_fields' => [
                'order number' => '> 654321 <',
            ],
        ]);

        $items = [
            (new InvoiceItem())
                ->title('Service 1')
                ->description('Your product or service description')
                ->pricePerUnit(47.79)
                ->quantity(2)
                ->discount(10),
            (new InvoiceItem())->title('Service 2')->pricePerUnit(71.96)->quantity(2),
            (new InvoiceItem())->title('Service 3')->pricePerUnit(4.56),
            (new InvoiceItem())->title('Service 4')->pricePerUnit(87.51)->quantity(7)->discount(4)->units('kg'),
            (new InvoiceItem())->title('Service 5')->pricePerUnit(71.09)->quantity(7)->discountByPercent(9),
            (new InvoiceItem())->title('Service 6')->pricePerUnit(76.32)->quantity(9),
            (new InvoiceItem())->title('Service 7')->pricePerUnit(58.18)->quantity(3)->discount(3),
            (new InvoiceItem())->title('Service 8')->pricePerUnit(42.99)->quantity(4)->discountByPercent(3),
            (new InvoiceItem())->title('Service 9')->pricePerUnit(33.24)->quantity(6)->units('m2'),
            (new InvoiceItem())->title('Service 11')->pricePerUnit(97.45)->quantity(2),
            (new InvoiceItem())->title('Service 12')->pricePerUnit(92.82),
            (new InvoiceItem())->title('Service 13')->pricePerUnit(12.98),
            (new InvoiceItem())->title('Service 14')->pricePerUnit(160)->units('hours'),
            (new InvoiceItem())->title('Service 15')->pricePerUnit(62.21)->discountByPercent(5),
            (new InvoiceItem())->title('Service 16')->pricePerUnit(2.80),
            (new InvoiceItem())->title('Service 17')->pricePerUnit(56.21),
            (new InvoiceItem())->title('Service 18')->pricePerUnit(66.81)->discountByPercent(8),
            (new InvoiceItem())->title('Service 19')->pricePerUnit(76.37),
            (new InvoiceItem())->title('Service 20')->pricePerUnit(55.80),
        ];

        $notes = [
            'your multiline',
            'additional notes',
            'in regards of delivery or something else',
        ];
        $notes = implode("<br>", $notes);

        $invoice = Invoice::make('receipt')
            ->series('BIG')
            // ability to include translated invoice status
            // in case it was paid
            ->status(__('invoices::invoice.paid'))
            ->sequence(667)
            ->serialNumberFormat('{SEQUENCE}/{SERIES}')
            ->seller($client)
            ->buyer($customer)
            ->date(now()->subWeeks(3))
            ->dateFormat('m/d/Y')
            ->payUntilDays(14)
            ->currencySymbol('$')
            ->currencyCode('USD')
            ->currencyFormat('{SYMBOL}{VALUE}')
            ->currencyThousandsSeparator('.')
            ->currencyDecimalPoint(',')
            ->filename($client->name . ' ' . $customer->name)
            ->addItems($items)
            ->notes($notes)
            ->logo(public_path('vendor/invoices/sample-logo.png'))
            // You can additionally save generated invoice to configured disk
            ->save('public');

        $link = $invoice->url();
        // Then send email to party with link

        // And return invoice itself to browser or have a different view
        return $invoice->stream();

use Invoice;

$customer = Invoice::makeParty([
    'name' => 'John Doe',
]);

$item = Invoice::makeItem('Your service or product title')->pricePerUnit(9.99);

return Invoice::make()->buyer($customer)->addItem($item)->stream();

Invoice::make('receipt')->template('my_company');

return [
    'date' => [
        /**
         * Carbon date format
         */
        'format'         => 'Y-m-d',
        /**
         * Due date for payment since invoice's date.
         */
        'pay_until_days' => 7,
    ],

    'serial_number' => [
        'series'           => 'AA',
        'sequence'         => 1,
        /**
         * Sequence will be padded accordingly, for ex. 00001
         */
        'sequence_padding' => 5,
        'delimiter'        => '.',
        /**
         * Supported tags {SERIES}, {DELIMITER}, {SEQUENCE}
         * Example: AA.00001
         */
        'format'           => '{SERIES}{DELIMITER}{SEQUENCE}',
    ],

    'currency' => [
        'code'                => 'eur',
        /**
         * Usually cents
         * Used when spelling out the amount and if your currency has decimals.
         *
         * Example: Amount in words: Eight hundred fifty thousand sixty-eight EUR and fifteen ct.
         */
        'fraction'            => 'ct.',
        'symbol'              => '€',
        /**
         * Example: 19.00
         */
        'decimals'            => 2,
        /**
         * Example: 1.99
         */
        'decimal_point'       => '.',
        /**
         * By default empty.
         * Example: 1,999.00
         */
        'thousands_separator' => '',
        /**
         * Supported tags {VALUE}, {SYMBOL}, {CODE}
         * Example: 1.99 €
         */
        'format'              => '{VALUE} {SYMBOL}',
    ],

    'paper' => [
        // A4 = 210 mm x 297 mm = 595 pt x 842 pt
        'size'        => 'a4',
        'orientation' => 'portrait',
    ],

    'disk' => 'local',

    'seller' => [
        /**
         * Class used in templates via $invoice->seller
         *
         * Must implement LaravelDaily\Invoices\Contracts\PartyContract
         *      or extend LaravelDaily\Invoices\Classes\Party
         */
        'class' => \LaravelDaily\Invoices\Classes\Seller::class,

        /**
         * Default attributes for Seller::class
         */
        'attributes' => [
            'name'          => 'Towne, Smith and Ebert',
            'address'       => '89982 Pfeffer Falls Damianstad, CO 66972-8160',
            'code'          => '41-1985581',
            'vat'           => '123456789',
            'phone'         => '760-355-3930',
            'custom_fields' => [
                /**
                 * Custom attributes for Seller::class
                 *
                 * Used to display additional info on Seller section in invoice
                 * attribute => value
                 */
                'SWIFT' => 'BANK101',
            ],
        ],
    ],
];