blocks|key|5533556|text|将新的Lambda函数处理程序添加到项目中。创建一个新的函数处理程序名称，名为'S3FunctionHandler'；使用已选择的默认输入类型S3+Event；将输出类型保留为object:|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|5533557|​|5533558|📷|atomic|5533559|5533560|这将使用Lambda函数处理程序创建一些样板代码，该处理程序接受S3事件作为输入：|5533561|5533562|5533563|5533564|选择S3FunctionHandler，然后选择一个IAM角色：|5533565|5533566|5533567|5533568|切换到亚马逊网络服务管理控制台，使用虚拟S3事件测试Lambda函数。我们需要对其进行测试，为此，让我们配置一个测试事件。选择S3+Put事件，您可以通过单击Actions选项卡找到该事件。这模拟了某人将新对象上载到S3存储桶。|5533569|5533570|5533571|5533572|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/b6ea4daa2602957989a8bb14f7c3a70a.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/f6e73a32719f834c6ddd942e87cf1c53.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/c49b0067b3e31c48b827c9504479d314.png|3|https://ask.qcloudimg.com/http-save/yehe-900000/f842fd31661134de274b77654c5e6190.png^0|0|2N|0|0|0|1|0|0|0|0|15|0|0|0|1|1|0|0|0|W|0|0|0|1|2|0|0|0|36|0|0|0|1|3|0|0^^$0|@$1|2|3|4|5|6|7|1F|8|@$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1I|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1J|8|@]|D|@$9|1K|A|1L|1|1M]]|E|$]]|$1|K|3|G|5|6|7|1N|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|1O|8|@$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|N|3|G|5|6|7|1R|8|@]|D|@]|E|$]]|$1|O|3|I|5|J|7|1S|8|@]|D|@$9|1T|A|1U|1|1V]]|E|$]]|$1|P|3|G|5|6|7|1W|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1X|8|@$9|1Y|A|1Z|B|C]]|D|@]|E|$]]|$1|S|3|G|5|6|7|20|8|@]|D|@]|E|$]]|$1|T|3|I|5|J|7|21|8|@]|D|@$9|22|A|23|1|24]]|E|$]]|$1|U|3|G|5|6|7|25|8|@]|D|@]|E|$]]|$1|V|3|W|5|6|7|26|8|@$9|27|A|28|B|C]]|D|@]|E|$]]|$1|X|3|G|5|6|7|29|8|@]|D|@]|E|$]]|$1|Y|3|I|5|J|7|2A|8|@]|D|@$9|2B|A|2C|1|2D]]|E|$]]|$1|Z|3|G|5|6|7|2E|8|@]|D|@]|E|$]]|$1|10|3|-4|5|6|7|2F|8|@]|D|@]|E|$]]]|11|$12|$5|13|14|15|E|$16|17|18|-4]]|19|$5|13|14|15|E|$16|1A|18|-4]]|1B|$5|13|14|15|E|$16|1C|18|-4]]|1D|$5|13|14|15|E|$16|1E|18|-4]]]]

Add a new Lambda function handler to the project. Create a new function handler name, say 'S3FunctionHandler'; use the default input type that is already selected, S3 Event; and as leave the output type as object:

<a href="https://i.stack.imgur.com/BcZX2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BcZX2.png" alt="New Lambda Function"></a>

This will create some boilerplate code with the Lambda function handler that takes an S3 event as input:

<a href="https://i.stack.imgur.com/Ap876.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ap876.png" alt="Boilerplate Code"></a>

Select S3FunctionHandler and select an IAM Role:

<a href="https://i.stack.imgur.com/hFUu4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hFUu4.png" alt="Functionhandler"></a>

Switch over to the AWS Management Console to test our Lambda function with a dummy S3 event. We need to test it, so to do this let's configure a test event. Select the S3 Put event, which you find by clicking on the Actions tab. This simulates somebody uploading a new object to an S3 bucket. 

<a href="https://i.stack.imgur.com/sIhv5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sIhv5.png" alt="Function Test"></a>

blocks|key|2266433|text|如果Amazon+S3事件配置为触发AWS+Lambda函数，则S3将向Lambda函数提供有关触发该函数的S3对象的信息。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2266434|来自Using+AWS+Lambda+with+Amazon+S3+-+AWS+Lambda|offset|length|2266435|{
++"Records":+[
++++{
++++++"eventVersion":+"2.1",
++++++"eventSource":+"aws:s3",
++++++"awsRegion":+"us-east-2",
++++++"eventTime":+"2019-09-03T19:37:27.192Z",
++++++"eventName":+"ObjectCreated:Put",
++++++"userIdentity":+{
++++++++"principalId":+"AWS:AIDAINPONIXQXHT3IKHL2"
++++++},
++++++"requestParameters":+{
++++++++"sourceIPAddress":+"205.255.255.255"
++++++},
++++++"responseElements":+{
++++++++"x-amz-request-id":+"D82B88E5F771F645",
++++++++"x-amz-id-2":+"vlR7PnpV2Ce81l0PRw6jlUpck7Jo5ZsQjryTjKlc5aLWGVHPZLj5NeC6qMa0emYBDXOo6QBU0Wo="
++++++},
++++++"s3":+{
++++++++"s3SchemaVersion":+"1.0",
++++++++"configurationId":+"828aa6fc-f7b5-4305-8584-487c791949c1",
++++++++"bucket":+{
++++++++++"name":+"my-bucket",
++++++++++"ownerIdentity":+{
++++++++++++"principalId":+"A3I5XTEXAMAI3E"
++++++++++},
++++++++++"arn":+"arn:aws:s3:::my-bucket"
++++++++},
++++++++"object":+{
++++++++++"key":+"foo.jpg",
++++++++++"size":+1305107,
++++++++++"eTag":+"b21b84d653bb07b05b1e6b33684dc11b",
++++++++++"sequencer":+"0C0F6F405D6ED209E1"
++++++++}
++++++}
++++}
++]
}|code-block|syntax|javascript|2266436|这些信息包括Bucket名称、对象的键(文件名)、触发函数的事件以及其他各种信息。Lambda函数随后可以使用此信息来适当地处理对象。|2266437|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.aws.amazon.com/lambda/latest/dg/with-s3.html^0|0|2|18|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@$D|W|E|X|1|Y]]|A|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

If an Amazon S3 Event is configured to trigger an AWS Lambda function, then S3 will provide information to the Lambda function about the S3 object that triggered the function.

From <a href="https://docs.aws.amazon.com/lambda/latest/dg/with-s3.html" rel="nofollow noreferrer">Using AWS Lambda with Amazon S3 - AWS Lambda</a>:

<pre><code>{
 "Records": [
 {
 "eventVersion": "2.1",
 "eventSource": "aws:s3",
 "awsRegion": "us-east-2",
 "eventTime": "2019-09-03T19:37:27.192Z",
 "eventName": "ObjectCreated:Put",
 "userIdentity": {
 "principalId": "AWS:AIDAINPONIXQXHT3IKHL2"
 },
 "requestParameters": {
 "sourceIPAddress": "205.255.255.255"
 },
 "responseElements": {
 "x-amz-request-id": "D82B88E5F771F645",
 "x-amz-id-2": "vlR7PnpV2Ce81l0PRw6jlUpck7Jo5ZsQjryTjKlc5aLWGVHPZLj5NeC6qMa0emYBDXOo6QBU0Wo="
 },
 "s3": {
 "s3SchemaVersion": "1.0",
 "configurationId": "828aa6fc-f7b5-4305-8584-487c791949c1",
 "bucket": {
 "name": "my-bucket",
 "ownerIdentity": {
 "principalId": "A3I5XTEXAMAI3E"
 },
 "arn": "arn:aws:s3:::my-bucket"
 },
 "object": {
 "key": "foo.jpg",
 "size": 1305107,
 "eTag": "b21b84d653bb07b05b1e6b33684dc11b",
 "sequencer": "0C0F6F405D6ED209E1"
 }
 }
 }
 ]
}
</code></pre>

This information includes the Bucket name, Key (filename) of the object, the event that triggered the function and various other tidbits of information. The Lambda function can then use this information to process the object appropriately.

I am trying to trigger a Lambda once I get any file in an s3 bucket. For that I have configured the event in the s3 bucket. But, I need to give an input to the Lambda (event) that will be triggered. How do I do that?

Get input in Lambda from s3 event trigeer

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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一旦我在s3存储桶中获得任何文件，我就会尝试触发Lambda。为此，我在s3存储桶中配置了事件。但是，我需要给将被触发的Lambda (事件)提供一个输入。我该怎么做？

问从s3事件触发器获取Lambda中的输入
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问从s3事件触发器获取Lambda中的输入EN