AWS DynamoDB DAX Node.js示例 [英] AWS DynamoDB DAX Node.js Example

问题描述

有人在node.js中使用AWS DynamoDB DAX有很好的例子吗?那需要考虑什么呢?(例如VPC，子网，安全组等).

Does anyone have a good example using AWS DynamoDB DAX in node.js? And what needs to be considered? (E.g. VPC, Subnet, Security Group, etc.).

我得到

错误:NoRouteException:没有可用的终结点

Error: NoRouteException: No endpoints available

部分

错误:ValidationException:必需的键之一未提供值

Error: ValidationException: One of the required keys was not given a value

不获取数据，既不存储在缓存中，也不存储在数据库中.

Don't get data stored, not in the cache, nor on the DB.

谢谢！

推荐答案

有

There is the TryDax example in the documentation, which describes how to access data using both DynamoDB and DAX - the DAX client should be a drop in replacement. The second error is most likely just a missing part of the key.

要设置VPC和子网要复杂得多-客户端计算机和群集必须位于同一VPC(或对等VPC)中，并且两者都必须位于允许从客户端到群集的流量的安全组中.您还需要 IAM政策和角色配置正确，以便DAX可以对客户端进行身份验证.

Getting VPCs and subnets set up is a bit more involved - the client machine and the cluster must be in the same VPC (or peered VPCs) and both must be in a security group that allows traffic from the client to the cluster. You also need IAM policies and roles configured correctly so that DAX can authenticate the client.

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