亚马逊MWS API中的RequestThrottling问题 [英] RequestThrottling issue in Amazon MWS API

问题描述

我正在测试使用C＃中的Amazon MWS API提交提要，但是在代码中设置了AWS秘密密钥，访问密钥等之后，我收到了RequestThrottled错误，因此有详细信息，但找不到任何代码

I am testing API Sample of Amazon MWS API in C# for submit feeds however after setting AWS Secret key , access key etc. in code i am getting error of RequestThrottled , so there is details what is that but could not find any code sample how to resolved that.

我想将feed.xml上传到亚马逊卖家帐户

I would like to upload feed.xml to amazon seller account

  <?xml version="1.0" encoding="iso-8859-1"?>
<AmazonEnvelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:noNamespaceSchemaLocation="amzn-envelope.xsd">
  <Header>
    <DocumentVersion>1.01</DocumentVersion>
    <MerchantIdentifier>M_EXAMPLE_123456</MerchantIdentifier>
  </Header>
  <MessageType>Product</MessageType>
  <PurgeAndReplace>true</PurgeAndReplace>
  <Message>
    <MessageID>1</MessageID>
    <OperationType>Insert</OperationType>
    <Product>
      <SKU>56789</SKU>
      <StandardProductID>
        <Type>ASIN</Type>
        <Value>B0EXAMPLEG</Value>
      </StandardProductID>
      <ProductTaxCode>A_GEN_NOTAX</ProductTaxCode>
      <DescriptionData>
        <Title>Example Product Title</Title>
        <Brand>Example Product Brand</Brand>
        <Description>This is an example product description.</Description>
        <BulletPoint>Example Bullet Point 1</BulletPoint>
        <BulletPoint>Example Bullet Point 2</BulletPoint>
        <MSRP currency="USD">25.19</MSRP>
        <Manufacturer>Example Product Manufacturer</Manufacturer>
        <ItemType>example-item-type</ItemType>
      </DescriptionData>
      <ProductData>
        <Health>
          <ProductType>
            <HealthMisc>
              <Ingredients>Example Ingredients</Ingredients>
              <Directions>Example Directions</Directions>
            </HealthMisc>
          </ProductType>
        </Health>
      </ProductData>
    </Product>
  </Message>
</AmazonEnvelope>

按以下方式获取错误

 Caught Exception: Request from SubmitFeed:AKIAJI4PSK4HXY6UCNMA;A2DNAGZJ1EWQLW is
 throttled.
Response Status Code: ServiceUnavailable
Error Code: RequestThrottled
Error Type: Sender
Request ID: fc59c802-04da-4dd3-89a8-db5f525cac39
XML: <ErrorResponse xmlns="http://mws.amazonaws.com/doc/2009-01-01/"><Error><Typ
e>Sender</Type><Code>RequestThrottled</Code><Message>Request from SubmitFeed:AKI
AJI4PSK4HXY6UCNMA;A2DNAGZJ1EWQLW is throttled.</Message><Detail>System.Object</D
etail></Error><RequestId>fc59c802-04da-4dd3-89a8-db5f525cac39</RequestId></Error
Response>

有人可以给我解决方案吗？

Can anyone give me solution to resolve this?

谢谢！

推荐答案

根据亚马逊的API参考 SubmitFeed 操作的最大请求配额为15，每2分钟恢复请求的速率。这意味着您可以在15秒内拨打此操作电话，但此后您将节流2分钟，直到Amazon允许您再次发出请求。
您可以在其开发人员指南，他们在其中更好地描述了如何使用泄漏桶算法。

As per Amazon's API reference the SubmitFeed operation has a maximum request quota of 15 and a restore rate of a request every 2 minutes. This means that you're allowed to make calls to this operation in burst of 15, but after this you're throttled for 2 minutes, until Amazon allows you to make another request. You can find this better explained in their developer guide where they describe better how they make use of the leaky bucket algorithm.

您的Feed可能没有任何问题，但是由于您发出过多的请求（可能超过15个），因此您受到了限制。我的建议是以这样的方式构建代码：考虑到Amazon的限制并在受到限制时使用退避算法（例如在恢复率期过后返回，具体取决于您的呼叫类型）在做）。另外，请记住，MWS的另一个限制是在所有类型的呼叫中每小时每小时有10000个请求。

Probably there isn't anything wrong with your feed, but because you made too many requests (probably more than 15) you got throttled. My advice is to build your code in such a way that you take into consideration Amazon throttlening and have a back-off algorithm when you're being throttled (like come back after a "restore rate" period, specific to the type of call you're doing). Also, keep in mind that another limitation MWS has is of 10000 requests per hour across all type of calls.

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