curl --request GET \
  --url https://app.flowglad.com/api/v1/customers \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "id": "<string>",
      "createdAt": "<string>",
      "updatedAt": "<string>",
      "createdByCommit": "<string>",
      "updatedByCommit": "<string>",
      "livemode": true,
      "organizationId": "<string>",
      "email": "<string>",
      "name": "<string>",
      "invoiceNumberBase": "<string>",
      "archived": true,
      "logoURL": "<string>",
      "iconURL": "<string>",
      "domain": "<string>",
      "billingAddress": {
        "name": "<string>",
        "firstName": "<string>",
        "lastName": "<string>",
        "email": "jsmith@example.com",
        "address": {
          "name": "<string>",
          "line1": "<string>",
          "line2": "<string>",
          "city": "<string>",
          "state": "<string>",
          "postal_code": "<string>",
          "country": "<string>"
        },
        "phone": "<string>"
      },
      "externalId": "<string>",
      "userId": "<string>",
      "pricingModelId": "<string>"
    }
  ],
  "currentCursor": "<string>",
  "nextCursor": "<string>",
  "hasMore": true,
  "total": 123
}