VGSCheckoutDataMergePolicy

FieldName will be treated as a flat key without any nested levels. data.cardNumber -> [“data.cardNumber” : “4111111111111111”]

Map data to the nested JSON. data.cardNumber -> [“data” : [“cardNumber” : “4111111111111111”]].

Map field name to nested JSON and array if array index is specified. Example: card_data[1].number => nested JSON with array

{
    "card_data" :
        [
            null,

            { "number" : "4111111111111111" }
        ]
}

Completely overwrite extra data array with Checkout Array data.

        // Checkout fields JSON:
        [
         { "cvc" : "555" }
        ]

        // Extra data JSON:
        [
         { "number" : "4111111111111111" },
         { "id" : "1111" }
        ]

        // JSON to submit:
        [
         {
            "cvc" : "555",
         }
        ]

Map field name to nested JSON and array if array index is specified. Example: card_data[1].number => nested JSON with array

{
    "card_data" :
        [
            null,

            { "number" : "4111111111111111" }
        ]
}

Merge arrays content at the same nested level if possible.

        // Checkout fields JSON:
        [
         { "cvc" : "555" }
        ]

        // Extra data JSON:
        [
         { "number" : "4111111111111111" }
        ]

        // JSON to submit:
        [
         {
            "cvc" : "555",
            "number" : "4111111111111111"
         }
        ]