> ## Documentation Index
> Fetch the complete documentation index at: https://lago-ftr-wallet-improvements.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Create a one-off invoice

> This endpoint is used for issuing a one-off invoice.

<RequestExample>
  ```bash cURL
  LAGO_URL="https://api.getlago.com"
  API_KEY="__YOUR_API_KEY__"

  curl --location --request POST "$LAGO_URL/api/v1/invoices" \
    --header "Authorization: Bearer $API_KEY" \
    --header 'Content-Type: application/json' \
    --data-raw '{
      "invoice": {
        "external_customer_id": "hooli_1234",
        "currency": "USD",
        "fees": [
          {
            "add_on_code": "setup_fee",
            "units": 2.5,
            "unit_amount_cents": 1200,
            "description": "This is a description.",
            "tax_codes": ["french_standard_vat]
          }
        ]
      }
    }'
  ```

  ```python Python
  from lago_python_client.client import Client
  from lago_python_client.exceptions import LagoApiError
  from lago_python_client.models import InvoiceFee, OneOffInvoice, InvoiceFeesList

  client = Client(api_key='__YOUR_API_KEY__')

  fee_object = InvoiceFee(
    add_on_code='setup_fee',
    units=2.5,
    unit_amount_cents=1200,
    description='This is a description.'
  )

  invoice_create = OneOffInvoice(
    external_customer_id="hooli_1234",
    currency="USD",
    fees=InvoiceFeesList(__root__=[fee_object])
  )

  try:
      client.invoices.create(invoice_create)
  except LagoApiError as e:
      repair_broken_state(e)  # do something on error or raise your own exception
  ```

  ```ruby Ruby
  require 'lago-ruby-client'

  client = Lago::Api::Client.new({api_key: '__YOUR_API_KEY__'})

  client.invoices.create({
    external_customer_id: "hooli_1234",
    currency: 'USD',
    fees: [
      {
        add_on_code: 'setup_fee',
        units: 2.5,
        unit_amount_cents: 1200,
        description: 'This is a description.'
      }
    ]
  })
  ```

  ```js Javascript
  const invoiceObject = {
    external_customer_id: "hooli_1234",
    currency: "USD",
    fees: [
      {
        add_on_code: "setup_fee",
        description: "This is a description.",
        units: 2.5,
        unit_amount_cents: 1200,
      },
    ],
  };

  await client.invoices.createInvoice({
    invoice: invoiceObject,
  });
  ```

  ```go Go
  import "fmt"
  import "github.com/getlago/lago-go-client"

  func main() {
  lagoClient := lago.New().
      SetApiKey("__YOUR_API_KEY__")

  invoiceInput := &lago.OneOffInput{
      ExternalCustomerId: custID,
          currency: "USD",
      Fees: [
      &InvoiceFeesInput{
          AddOnCode: "setup_fee",
          Description: "This is a description.",
          Units: 2.5,
          UnitAmountCents: 1200
      }
      ]
  }

  invoice, err := lagoClient.Invoice().Create(invoiceInput)
  if err != nil {
      // Error is *lago.Error
      panic(err)
  }

  // invoice is *lago.Invoice
  fmt.Println(invoice)
  }
  ```

  ```csharp C#
  using System.Collections.Generic;
  using System.Diagnostics;
  using Org.OpenAPITools.Api;
  using Org.OpenAPITools.Client;
  using Org.OpenAPITools.Model;

  namespace Example
  {
    public class UpdateInvoiceExample
    {
        public static void Main()
        {
            Configuration.Default.BasePath = "https://api.getlago.com/api/v1";
            // Configure HTTP bearer authorization: bearerAuth
            Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";

            var apiInstance = new InvoicesApi(Configuration.Default);
            var id = "183da83c-c007-4fbb-afcd-b00c07c41ffe";  // string | ID of the existing Lago Invoice
            var invoiceInput = new InvoiceOneOffInput();

            try
            {
                // Update an existing invoice status
                Invoice result = apiInstance.CreateInvoice(invoiceInput);
                Debug.WriteLine(result);
            }
            catch (ApiException e)
            {
                Debug.Print("Exception when calling InvoicesApi.CreateInvoice: " + e.Message );
                Debug.Print("Status Code: "+ e.ErrorCode);
                Debug.Print(e.StackTrace);
            }
        }
    }
  }
  ```

  ```php PHP
  <?php
  require_once(__DIR__ . '/vendor/autoload.php');


  // Configure Bearer authorization: bearerAuth
  $config = OpenAPI\Client\Configuration::getDefaultConfiguration()->setAccessToken('YOUR_ACCESS_TOKEN');


  $apiInstance = new OpenAPI\Client\Api\InvoicesApi(
    // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
    // This is optional, `GuzzleHttp\Client` will be used as default.
    new GuzzleHttp\Client(),
    $config
  );
  $invoice_input = new \OpenAPI\Client\Model\InvoiceOneOffInput();

  try {
    $result = $apiInstance->createInvoice($invoice_input);
    print_r($result);
  } catch (Exception $e) {
    echo 'Exception when calling InvoicesApi->createInvoice: ', $e->getMessage(), PHP_EOL;
  }
  ```
</RequestExample>