AWS API网关和弹性搜索获取查询 [英] AWS API gateway and elastic search get query

问题描述

我需要使用http连接直接从api网关调用弹性搜索引擎.

I need to call elastic search engine directly from api gateway using http connection eg.

https:////__ doc/_search?pretty& filter_path = hits.hits._source

https:////_doc/_search?pretty&filter_path=hits.hits._source

我在弹性搜索引擎中有n个订单，我想使用get查询获得订单，但是我只希望发布json数组，并且不希望响应中包含任何其他信息.我该怎么办?

i have n number of orders in elastic search engine which i want to get using get query ,but i want only array of json i posted and dont want any other information in the response.how can i do that ?

例如

这就是我得到的:

   {
      "hits" : {
        "hits" : [
          {
            "_index" : "gpss_orders",
            "_type" : "_doc",
            "_id" : "4867254",
            "_score" : 1.0,
            "_source" : {
              "orderId" : 4867254,
              "loadId" : 18214,
              "orderTypeId" : 1
          }
       ]
     }
   }

但是我想要回复这样的内容:

But i would want response something like this :

[ {
                  "orderId" : 4867254,
                  "loadId" : 18214,
                  "orderTypeId" : 1
              }]

我需要更改api网关方法响应吗?

do i need to change in api gateway method response?

我更改了api网关方法响应模板并获得了预期的结果

i changed the api gateway method response template and got the expected out

#set($esOutput = $input.path('$.hits.hits'))
#set($orders = [])
#foreach( $elem in $esOutput )
 #set($order = $elem["_source"])
 #set($response = $orders.add($order) )
#end
$orders

但是现在我面临的问题是，尽管弹性搜索引擎的响应是正确的json，但方法集成模板更新后的响应变成这样，没有任何花括号:

but now the problem i am facing is that though response from elastic search engine is the proper json,response after method integration template update become like this without any braces :

[{orderId=4867254, loadId=18214, orderTypeId=1, orderTypeName=Fuel}]

弹性搜索的响应:

"took" : 1,
  "hits" : {
    "hits" : [
      {
        "_id" : "4867254",
        "_score" : 1.0,
        "_source" : {
          "orderId" : 4867254,
          "loadId" : 18214,
          "orderTypeId" : 1,

推荐答案

没有一种方法可以通过Elasticsearch调整返回对象的形状.根据访问此数据的方式，您可以将自己的服务器端代码作为代理进行查询，并删除多余的信息，然后再将其返回给客户端.好处是，您可以使用代理根据权限，缓存或速率限制等因素来决定返回哪些信息.

There isn't a way to shape the return object from elasticsearch. Depending on how you access this data, you could have your own server-side code as a proxy make the query and remove extraneous information before returning it to the clients. A bonus is you can use the proxy to decide what information to return depending on factors such as permissions, caching or rate-limiting, etc.

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