如何在Cloudfront lambda@edge原始请求中添加自定义头？

Question

下面是我的Lambda函数。custom_header在我的Lambda的Cloudwatch日志中可见，但在我的自定义服务器请求头中不显示：（。

exports.handler = (event, context, callback) => {
  const request = event.Records[0].cf.request;
  const headers = request.headers;

  headers['custom_header'] = [{ key: 'custom_header', value: 'custom_header' }];

  return callback(null, request);
}

我希望custom_header在req.headers下的node.js路由中可见。

Answer 1

自定义头可以通过下面的结构传递。

Request.Origin.Custom.CustomHeaders

参考:https://docs.aws.amazon.com/amazoncloudfront/latest/developerguide/lambda-event-structure.html#lambda-event-structure-request

exports.handler = (event, context, callback) => {
  const request = event.Records[0].cf.request;
  const headers = request.headers;

  request.origin.custom.customHeaders['custom_header'] = [{ key: 'custom_header', value: 'custom_header' }];

  return callback(null, request);
}