Adding Multiple Goods to a Transaction

To include more than one line item in a transaction, you need to add a transaction line for each good. Here is an example for a single good:

{
  transaction": {
            "currency_code": "EUR",
            "buyer_name": "Eric Papin",
            "ship_to_address": {
            "address_detail": "Palais de l'Élysée",
            "building_number": "55",
            "street_name": "Rue du Faubourg Saint-Honoré",
            "city": "Paris",
            "postal_code": "75008 ",
            "country_code": "FR"
            },
            "transaction_lines": [
             {
                "product_class": "P",
                "quantity": 1,
                "description": "Oak smoked kippers (1kg)",
                "amount": "29.00",
                "custom_id": "51315A00-DC44-408E-A575-8CE42A32AE1B",
                "import_address": {
                "country_code": "FR"
                },
                "ship_from_address": {
                        "address_detail": "Prickly Thistle Business Park",
                        "street_name": "Orton Place",
                        "city": "Glasgow",
                "postal_code": "G51 2HF",
                "country_code": "GB"
            },
            "product_cn_code": "0305420000"
    },
  ]
 }
}

Here is an example for multiple goods:

{
"transaction": {
        "currency_code": "EUR",
        "buyer_name": "Eric Papin",
        "ship_to_address": {
                "address_detail": "Palais de l'Élysée",
                "building_number": "55",
                "street_name": "Rue du Faubourg Saint-Honoré",
                "city": "Paris",
                "postal_code": "75008 ",
                "country_code": "FR"
                },
                "transaction_lines": [
                {
                    "product_class": "P",
                    "quantity": 2,
                    "description": "Oak smoked kippers (1kg)",
                    "amount": "29.00",
                    "custom_id": "51315A00-DC44-408E-A575-8CE42A32AE1B",
                    "import_address": {
                    "country_code": "FR"
                    },
                    "ship_from_address": {
                    "address_detail": "Prickly Thistle Business Park",
                    "street_name": "Orton Place",
                    "city": "Glasgow",
            "postal_code": "G51 2HF",
            "country_code": "GB"
        },
        "product_cn_code": "0305420000"
        },
    {
        "product_class": "P",
        "quantity": 1,
        "description": "Loch Lomond 18 Year Old Highland Single Malt Scotch Whisky (70cl)",
        "amount": "65.79",
        "custom_id": "24E6F0A5-4D39-41C1-9484-2197DD84EC2C",
        "import_address": {
        "country_code": "FR"
        },
        "ship_from_address": {
        "address_detail": "Prickly Thistle Business Park",
        "street_name": "Orton Place",
        "city": "Glasgow",
        "postal_code": "G51 2HF",
        "country_code": "GB"
},
"product_cn_code": "22083030000"
    },
  ]
 }
}