blocks|key|23864|text|API+Gateway现在支持WebSockets，你可以在Lambda中处理事件，也可以以一种简化的方式响应。有关更多信息，请参阅Announcing+WebSocket+APIs+in+Amazon+API+Gateway|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|23865|​|23866|📷|atomic|23867|23868|此外，您还可以使用AWS中的其他两个服务来实现这一点，|23869|的想法是客户端将订阅物联网主题，并从Lambda将消息推送到客户端。|23870|23871|23872|23873|23874|AWS+AppSync+(新引入的)：-在Lambda和DynamoDB之间有一个层，它将提供WebSocket支持。|unordered-list-item|23875|23876|注意:您可能需要在此时请求AppSync的预览。|23877|entityMap|0|LINK|mutability|MUTABLE|url|https://aws.amazon.com/blogs/compute/announcing-websocket-apis-in-amazon-api-gateway/|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/f56f8e3ed7013e82d02b4290a8f3e17a.png|imageAlt|2|https://ask.qcloudimg.com/http-save/yehe-900000/2530b7287dc9b3cc1993d6d252d72fc9.png|3|https://aws.amazon.com/appsync/^0|1U|1B|0|0|0|0|1|1|0|0|0|0|0|0|1|2|0|0|0|0|B|3|0|0|0^^$0|@$1|2|3|4|5|6|7|1F|8|@]|9|@$A|1G|B|1H|1|1I]]|C|$]]|$1|D|3|E|5|6|7|1J|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1K|8|@]|9|@$A|1L|B|1M|1|1N]]|C|$]]|$1|I|3|E|5|6|7|1O|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|1P|8|@]|9|@]|C|$]]|$1|L|3|M|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|N|3|E|5|6|7|1R|8|@]|9|@]|C|$]]|$1|O|3|G|5|H|7|1S|8|@]|9|@$A|1T|B|1U|1|1V]]|C|$]]|$1|P|3|E|5|6|7|1W|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|1X|8|@]|9|@]|C|$]]|$1|R|3|S|5|T|7|1Y|8|@]|9|@$A|1Z|B|20|1|21]]|C|$]]|$1|U|3|-4|5|6|7|22|8|@]|9|@]|C|$]]|$1|V|3|W|5|6|7|23|8|@]|9|@]|C|$]]|$1|X|3|-4|5|6|7|24|8|@]|9|@]|C|$]]]|Y|$Z|$5|10|11|12|C|$13|14]]|15|$5|16|11|17|C|$18|19|1A|-4]]|1B|$5|16|11|17|C|$18|1C|1A|-4]]|1D|$5|10|11|12|C|$13|1E]]]]

API Gateway now supports WebSockets where you can handle the events in Lambda and also respond in a simplified way. For more information refer <a href="https://aws.amazon.com/blogs/compute/announcing-websocket-apis-in-amazon-api-gateway/" rel="nofollow noreferrer">Announcing WebSocket APIs in Amazon API Gateway</a>
<a href="https://i.stack.imgur.com/LXwc8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LXwc8.png" alt="enter image description here" /></a>
Also there are two other services in AWS you can use to achieve this,
<ul>
<li><a href="http://docs.aws.amazon.com/iot/latest/developerguide/protocols.html" rel="nofollow noreferrer">AWS IOT Websockets</a>:- The idea is clients will subscribe to IOT Topics and from Lambda it will push messages to client.</li>
</ul>
<a href="https://i.stack.imgur.com/NQWaA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NQWaA.png" alt="enter image description here" /></a>
<ul>
<li><a href="https://aws.amazon.com/appsync/" rel="nofollow noreferrer">AWS AppSync</a> (Newly Introduced):- Having a layer in between Lambda and DynamoDB which will provide WebSocket support.</li>
</ul>
Note: You might need to request for the preview of AppSync at the moment.

blocks|key|2479455|text|难道你们看不出他不想做服务端，而是客户端吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2479456|因此，如果我们谈论的是客户端，到目前为止，在Amazon+AWS上还没有解决方案/服务，这种解决方案/服务是无服务器的，并且仅在套接字的生存时间(从连接到断开)内保持活动。|2479457|不幸的是，我认为对于这种情况，我们只能使用实例。|2479458|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Can't you guys see that he does not want to be server, but the client instead?

So, if we are talking about to be the client, there's not solution/service, until now, on Amazon AWS that is serverless and stay alive just for the socket's living time (from connect to disconnect).

Unfortunately, I think we are left to work with instances for this kind of scenario.

blocks|key|23764|text|API+Gateway直接支持websockets。因此，您可以将APIGW+websocket+api连接到一个lambda函数，然后将其连接到DynamoDB。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|23765|提供了详细的setting+up+websockets+in+APIGW分步指南。|23766|示例设置可能是：|23767|#+1.+Create+API+Gateway+Websocket
#+2.+Create+integration
aws+apigatewayv2+create-integration+
++--api-id+APIGW_ID+--integration-type+AWS_PROXY+
++--integration-method+POST
++--integration-uri+arn:aws:apigateway:REGION:lambda:path/2015-03-31/functions/LAMBDA_ARN/invocations|code-block|syntax|javascript|23768|entityMap|0|LINK|mutability|MUTABLE|url|https://aws.amazon.com/blogs/compute/announcing-websocket-apis-in-amazon-api-gateway/|1|https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-websocket-api-integration-requests.html^0|0|B|0|0|6|U|1|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]]|C|$]]|$1|F|3|G|5|6|7|14|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|15|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

<a href="https://aws.amazon.com/blogs/compute/announcing-websocket-apis-in-amazon-api-gateway/" rel="nofollow noreferrer">API Gateway</a> directly supports websockets. So you can connect you connect APIGW websocket api to a lambda function and connect this to DynamoDB.
Detailed step by step guide for <a href="https://docs.aws.amazon.com/apigateway/latest/developerguide/apigateway-websocket-api-integration-requests.html" rel="nofollow noreferrer">setting up websockets in APIGW</a> is available.
An example setup might be:
<pre class="lang-sh prettyprint-override"><code># 1. Create API Gateway Websocket
# 2. Create integration
aws apigatewayv2 create-integration 
 --api-id APIGW_ID --integration-type AWS_PROXY 
 --integration-method POST
 --integration-uri arn:aws:apigateway:REGION:lambda:path/2015-03-31/functions/LAMBDA_ARN/invocations
</code></pre>

A website offers a websocket to get real-time data from. I'm trying to record data received from the websocket in a DynamoDB table for a data source for a serverless application. Their example of how to use the websocket is some Node.JS code using socket.io-client. Being JavaScript I thought to use an AWS Lambda function but they are not purposed to run constantly. Is there an AWS service to handle this sort of subscription? I don't want to make a small EC2 instance to run a tiny application just for this purpose.

Things I've looked at:

<ul>
<li>Lambda functions - Only for short executions not long running tasks.</li>
<li>SNS subscriptions - From what I understand this needs to subscribe to an SNS publisher.</li>
<li>Kinesis Stream - Requires producer to use Streams PUT API.</li>
</ul>

Any help would be greatly appreciated!

Is it possible to subscribe to a WebSocket in a serverless fashion using AWS?

服务器

物联网

网站提供了一个websocket来获取实时数据。我正在尝试将从websocket接收的数据记录在无服务器应用程序的数据源的DynamoDB表中。他们如何使用websocket的示例是一些使用socket.io-client的Node.JS代码。作为JavaScript，我想使用AWS Lambda函数，但它们并不是经常...

问是否可以使用亚马逊网络服务以无服务器方式订阅WebSocket？
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问是否可以使用亚马逊网络服务以无服务器方式订阅WebSocket？
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