Question

我正在尝试通过elasticsearch中的Node.js api更新具有特定ID的文档。我是Node.js的新手，所以我无法弄清楚更新失败的原因。以下是我webapp.js文件中的相关snipet：

app.post('/api/resources/:id', function(req, res) {
 var resource = req.body;
var param = { index: 'test', type: 'tes', _id : req.params.id, doc:resource
};
  console.log("Modifying resource:", req.params.id, resource);
  client.update(param, function (error, response) {
//   client.get({ index: 'test', type: 'tes', id: req.params.id }, function(err, resource) {
      res.send(response);
    });
//  });
});

我正在使用此命令从命令行通过curl对此进行测试：

curl -v \
  --data '{"name":"xxx"}' \
  http://localhost:3000/api/resources/AV2EbdzXWlL5FjuPDx0r

以下是我从命令行收到的响应：

*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 3000 (#0)
> POST /api/resources/AV2EbdzXWlL5FjuPDx0r HTTP/1.1
> Host: localhost:3000
> User-Agent: curl/7.51.0
> Accept: */*
> Content-Length: 81
> Content-Type: application/x-www-form-urlencoded
> 
* upload completely sent off: 81 out of 81 bytes
< HTTP/1.1 200 OK
< X-Powered-By: Express
< Date: Fri, 28 Jul 2017 16:40:53 GMT
< Connection: keep-alive
< Content-Length: 0
< 
* Curl_http_done: called premature == 0
* Connection #0 to host localhost left intact

该文档未获得更新。有人可以帮我弄清楚我在做错了什么。

Answer 1

您的param哈希不正确，_id应为id，doc应为body。另一件事是，对于部分更新，您需要将部分字段括在doc结构中：

var resource = {doc: req.body};
var param = { index: 'test', type: 'tes', id: req.params.id, body: resource }
                                           ^                   ^
                                           |                   |
                                          change these two params

请参阅官方文档here

通过节点js api更新elasticsearch doc

1 个答案: