如何通过Amazon API Gateway + Lambda(节点)检索用户的公共IP地址 [英] How can I retrieve a user's public IP address via Amazon API Gateway + Lambda (node)

问题描述

我当前正在编写一个Node.js lambda函数，我想在其中记录传入请求者的公共IP地址.我整天都在浏览API网关和Lambda文档，但没有找到解决方案.

I'm currently writing a Node.js lambda function, in which I want to log the incoming requester's public IP address. I've been looking through both the API Gateway and Lambda docs all day, but haven't found a solution.

lambda event对象是否包含我可以用来提取用户IP的请求元数据?

Does the lambda event object include request metadata I can use to extract the user's IP?

推荐答案

这是在Lambda函数中使用API​​网关的$context.identity.sourceIp的简单演示.

Here is a simple demonstration of using API Gateway's $context.identity.sourceIp in a Lambda function.

API映射模板:

{
    "sourceIP" : "$context.identity.sourceIp"
}

Lambda函数:

'use strict';
console.log('Loading function');
exports.handler = (event, context, callback) => {
    console.log('SourceIP =', event.identity.sourceIP);
    callback(null, event.identity.sourceIP);
};

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