我尝试使用亚马逊产品广告API获取ASIN号码的价格。
代码:
$artNr = "B003TKSD8E";
$base_url = "http://ecs.amazonaws.de/onca/xml";
$params = array(
'AWSAccessKeyId' => self::API_KEY,
'AssociateTag' => self::API_ASSOCIATE_TAG,
'Version' => "2010-11-01",
'Operation' => "ItemLookup",
'Service' => "AWSECommerceService",
'Condition' => "All",
'IdType' => 'ASIN',
'ItemId' => $artNr);
$params['Timestamp'] = gmdate("Y-m-d\TH:i:s.\\0\\0\\0\\Z", time());
$url_parts = array();
foreach(array_keys($params) as $key)
$url_parts[] = $key . "=" . str_replace('%7E', '~', rawurlencode($params[$key]));
sort($url_parts);
$url_string = implode("&", $url_parts);
$string_to_sign = "GET\necs.amazonaws.de\n/onca/xml\n" . $url_string;
$signature = hash_hmac("sha256", $string_to_sign, self::API_SECRET, TRUE);
$signature = urlencode(base64_encode($signature));
$url = $base_url . '?' . $url_string . "&Signature=" . $signature;
$response = file_get_contents($url);
$parsed_xml = simplexml_load_string($response);
我认为这应该是正确的 - 但我没有在回复中得到报价:
<?xml version="1.0" ?>
<ItemLookupResponse xmlns="http://webservices.amazon.com/AWSECommerceService/2010-11-01">
<OperationRequest>
<RequestId>*********************</RequestId>
<Arguments>
<Argument Name="Condition" Value="All">
</Argument>
<Argument Name="Operation" Value="ItemLookup">
</Argument>
<Argument Name="Service" Value="AWSECommerceService">
</Argument>
<Argument Name="ItemId" Value="B003TKSD8E">
</Argument>
<Argument Name="IdType" Value="ASIN">
</Argument>
<Argument Name="AWSAccessKeyId" Value="*********************">
</Argument>
<Argument Name="Timestamp" Value="2011-11-29T01:49:01.000Z">
</Argument>
<Argument Name="Signature" Value="*********************">
</Argument>
<Argument Name="AssociateTag" Value="*********************">
</Argument>
<Argument Name="Version" Value="2010-11-01">
</Argument>
</Arguments>
<RequestProcessingTime>0.0083130000000000</RequestProcessingTime>
</OperationRequest>
<Items>
<Request>
<IsValid>True</IsValid>
<ItemLookupRequest>
<Condition>All</Condition>
<IdType>ASIN</IdType>
<ItemId>B003TKSD8E</ItemId>
<ResponseGroup>Small</ResponseGroup>
<VariationPage>All</VariationPage>
</ItemLookupRequest>
</Request>
<Item>
<ASIN>B003TKSD8E</ASIN>
<DetailPageURL>http://www.amazon.de/Apple-iPhone-4-32GB-schwarz/dp/B003TKSD8E%3FSubscriptionId%3DAKIAI6NFQHK2DQIPRUEQ%26tag%3Dbanholzerme-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB003TKSD8E</DetailPageURL>
<ItemLinks>
<ItemLink>
<Description>Add To Wishlist</Description>
<URL>http://www.amazon.de/gp/registry/wishlist/add-item.html%3Fasin.0%3DB003TKSD8E%26SubscriptionId%3DAKIAI6NFQHK2DQIPRUEQ%26tag%3Dbanholzerme-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12738%26creativeASIN%3DB003TKSD8E</URL>
</ItemLink>
<ItemLink>
<Description>Tell A Friend</Description>
<URL>http://www.amazon.de/gp/pdp/taf/B003TKSD8E%3FSubscriptionId%3DAKIAI6NFQHK2DQIPRUEQ%26tag%3Dbanholzerme-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12738%26creativeASIN%3DB003TKSD8E</URL>
</ItemLink>
<ItemLink>
<Description>All Customer Reviews</Description>
<URL>http://www.amazon.de/review/product/B003TKSD8E%3FSubscriptionId%3DAKIAI6NFQHK2DQIPRUEQ%26tag%3Dbanholzerme-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12738%26creativeASIN%3DB003TKSD8E</URL>
</ItemLink>
<ItemLink>
<Description>All Offers</Description>
<URL>http://www.amazon.de/gp/offer-listing/B003TKSD8E%3FSubscriptionId%3DAKIAI6NFQHK2DQIPRUEQ%26tag%3Dbanholzerme-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D12738%26creativeASIN%3DB003TKSD8E</URL>
</ItemLink>
</ItemLinks>
<ItemAttributes>
<Manufacturer>Apple Computer</Manufacturer>
<ProductGroup>CE</ProductGroup>
<Title>Apple iPhone 4 32GB schwarz</Title>/ItemAttributes>
</Item>
</Items>
</ItemLookupResponse>
有人可以解释一下为什么我没有得到任何价格信息吗?
非常感谢
答案 0 :(得分:22)
要获取商品的价格,您需要添加ResponseGroup
参数Offers
或OfferFull
以及MerchantId
All
参数:
$params = array(
'AWSAccessKeyId' => self::API_KEY,
'AssociateTag' => self::API_ASSOCIATE_TAG,
'Version' => "2010-11-01",
'Operation' => "ItemLookup",
'Service' => "AWSECommerceService",
'Condition' => "All",
'IdType' => 'ASIN',
'ResponseGroup' => 'Offers', <- important
'MerchantId' => 'All', <- important
'ItemId' => $artNr);
如果您不包含MerchantId
All
,则只会获得亚马逊的优惠信息(默认MerchantId
)。这将返回商品详情,您的回复将包含以下内容:
<Items>
...
<Item>
...
<Offers>
...
<Offer>
...
<OfferListing>
<Price>
<Amount>1350</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$13.50</FormattedPrice>
</Price>
...
</OfferListing>
...
</Offer>
...
有关详细信息,请参阅Offers Response Group的文档。另请参阅ItemLookup operation的响应组请求参数说明,以获取更多有效的响应组。
答案 1 :(得分:3)
我建议您使用OfferSummary响应组,它将返回如下内容: ...
["Items"]=> object(stdClass)#72 (2) {
...
["Item"]=> object(stdClass)#75 (2) {
["ASIN"]=> string(10) "1405910232"
["OfferSummary"]=> object(stdClass)#76 (6) {
["LowestNewPrice"]=> object(stdClass)#77 (3) {
["Amount"]=> int(247)
["CurrencyCode"]=> string(3) "GBP"
["FormattedPrice"]=> string(6) "£2.47"
}
["LowestUsedPrice"]=> object(stdClass)#78 (3) {
["Amount"]=> int(297)
["CurrencyCode"]=> string(3) "GBP"
["FormattedPrice"]=> string(6) "£2.97"
}
...
答案 2 :(得分:3)
对“ResponseGroup”参数使用“medium”,允许值为small,medium和large。小的回复不会有价格细节。
http://docs.aws.amazon.com/AWSECommerceService/latest/DG/RG_Small.html
答案 3 :(得分:2)
Xarem,请看一下Product Advertising API(API参考/操作)。您已经请求了ItemLookup操作,并且没有为您承诺价格。使用SellerListingLookup(或其他一些)操作来获取可用价格。这是可以理解的,因为亚马逊有很多卖家,价格也各不相同,所以他们不能提供物品的价格,而是物品 - 卖家对。
答案 4 :(得分:2)
如果我有足够的代表,我会对早期的解决方案发表评论,但是我只能提供一个新答案......
因此,如果您将MerchantId值传递给All,您会在回复中看到这一点:
<MerchantId>Deprecated</MerchantId>
这向我表明,或许你不应该提供这个参数,与所选答案的建议相反。
不仅如此,我怀疑还有其他事情发生。我可能会在这里提出一个全新的问题,但是我提交了一个有效ASIN产品的请求,返回True,请求响应组Offers,OfferFull和OfferSummary,我没有回复任何价格信息。然而,当我在amazom.com上查看相同的产品时,我看到了价格信息。
这里还有别的东西可能是错的。
答案 5 :(得分:0)
您可以使用associate script中的解析器来回答您的问题。
答案 6 :(得分:0)
编辑您的回复组,如下所示: responseGroup(&#39;中,OfferSummary,VariationSummary&#39)
在回复组中,您将获得密钥&#34; VariationSummary&#34;在这个对象中你可以查看下面的参数价格:
请注意,您可能无法在VariationSummary对象中获得4个以上的所有参数。