протоколы двоичной синхронной передачи данных общего назначения

custom_attributes, value - массивы

Alamofire.request("http://adorableprojects.store/rest/V1/detailProduct/configurable-product").responseJSON { (responseData) -> Void in
    if((responseData.result.value) != nil) {

        let swiftyJsonVar = JSON(responseData.result.value!).dictionaryValue
        if let resData = swiftyJsonVar["custom_attributes"]?.arrayValue , let sec  =  resData.first?.dictionaryValue["value"]?.arrayValue , let color =  sec.first?.dictionaryValue["color"]?.arrayValue {
             print("dhjjhdhdsjhdsjdshjdsjhds   ",color) 
        }
        else {


        }

    }
}

Редактировать : доступ к размеру

Alamofire.request("http://adorableprojects.store/rest/V1/detailProduct/configurable-product").responseJSON { (responseData) -> Void in
    if((responseData.result.value) != nil) {

        let swiftyJsonVar = JSON(responseData.result.value!).dictionaryValue
        if let resData = swiftyJsonVar["custom_attributes"]?.arrayValue , let sec  =  resData.first?.dictionaryValue["value"]?.arrayValue , let color =  sec[1].dictionaryValue["size"]?.arrayValue {
             print("dhjjhdhdsjhdsjdshjdsjhds   ",size) 
        }
        else {


        }

    }
}

между прочим рекомендовать

struct Root: Codable {
    let customAttributes: [CustomAttribute]

    enum CodingKeys: String, CodingKey {
        case customAttributes = "custom_attributes"
    }
}

struct CustomAttribute: Codable {
    let attributeCode: String
    let value: [Value]

    enum CodingKeys: String, CodingKey {
        case attributeCode = "attribute_code"
        case value
    }
}

struct Value: Codable {
    let color: [Color]
}

struct Color: Codable {
    let valueIndex, label, productSuperAttributeID, defaultLabel: String
    let storeLabel: String
    let useDefaultValue: Bool

    enum CodingKeys: String, CodingKey {
        case valueIndex = "value_index"
        case label
        case productSuperAttributeID = "product_super_attribute_id"
        case defaultLabel = "default_label"
        case storeLabel = "store_label"
        case useDefaultValue = "use_default_value"
    }
}