请求包含未识别的参数:[键入]在弹性搜索中提出建议

Question

我是Node JS Express中的弹性搜索的新手，我正在努力在弹性搜索中获得建议。

以下内容，我在提出ES建议之前已经完成。

1）我创建了ES索引（名称 - "电影"）和类型（"电影"）和索引映射。

索引是：

return elasticClient.indices.create({
      index:"movies",
      body : {
        "settings" : {
          "index" : {
              "number_of_shards" : 5,
              "number_of_replicas" : 2
          }
        }
      }
    });
  }

映射是：

createMovieMapping:function(){
    return elasticClient.indices.putMapping({
      index:"movies",
      type:"movie",
      body:{
          properties:{
            movieName : {type:"string"},
            suggest:{
              type:"completion",
              analyzer:"simple",
              search_analyzer:"simple",
              payloads:true
            }
          }
        }
    })
  }

2）将一些数据从我的数据库推到了带有"电影"的索引"电影"。

添加索引数据的功能：

addDataToMovieEsIndex:function(document){
    return elasticClient.index({
      index:"movies",
      type:"movie",
      id:document._id, // for preventing duplicate insertion
      body:{
        movieName:document.movie_name,
        suggest:{
          input : document.movie_name.split(" "),
          output : document.movie_name,
          payload : document
        }
      }
    })
  }

3）现在，我试图通过以下创建功能获得建议结果 -

getMovieSuggestion: function(input){
    elasticClient.suggest({
      index:"movies",
      type:"movie",
      body : {
        moviesuggest:{
          text: input,
          completion:{
            field : "suggest",
            fuzzy : true
          }
        }
      }
    },function(err,resp){
      if(resp){
        console.log('response ',resp)
      }
      if(err){
        console.log('error ',err);        
      }      
    })
  }

，但我在要求获得电影结果建议时要低于错误。

{ Error: [illegal_argument_exception] request [/movies/_suggest] contains unrecognized parameter: [type]
    at respond (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/transport.js:307:15)
    at checkRespForFailure (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/transport.js:266:7)
    at HttpConnector.<anonymous> (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/connectors/http.js:159:7)
    at IncomingMessage.bound (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/lodash/dist/lodash.js:729:21)
    at emitNone (events.js:91:20)
    at IncomingMessage.emit (events.js:185:7)
    at endReadableNT (_stream_readable.js:974:12)
    at _combinedTickCallback (internal/process/next_tick.js:80:11)
    at process._tickCallback (internal/process/next_tick.js:104:9)
  status: 400,
  displayName: 'BadRequest',
  message: '[illegal_argument_exception] request [/movies/_suggest] contains unrecognized parameter: [type]',
  path: '/movies/_suggest',
  query: { type: 'movie' },
  body: '{"moviesuggest":{"text":"Sultan","completion":{"field":"suggest","fuzzy":true}}}',

注意：我尝试删除类型：从getMoviesuggestion函数中删除"电影"，然后给我以下错误：

Error: [illegal_argument_exception] no mapping found for field [suggest]

任何帮助将不胜感激。谢谢。

Answer 1

您不应该使用

type:"movie"

在呼叫Elasticclient.suggest中。

请参阅此处的参考，https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/current/api-referent.html#api-suggest

应该只是：

getMovieSuggestion: function(input){
    elasticClient.suggest({
      index:"movies",
      body : {
        moviesuggest:{
          text: input,
          completion:{
            field : "suggest",
            fuzzy : true
          }
        }
      }
    },function(err,resp){
      if(resp){
        console.log('response ',resp)
      }
      if(err){
        console.log('error ',err);        
      }      
    })
  }

此外，根据OP对ES 5.5的使用，ES JS API仍然使用_suggest端点，该端点已弃用。如注释中所示，使用_search端点使用适当的参数起作用。