使用rest-client ruby​​ gem在elasticsearch中传递json数据获取请求 [英] passing json data in elasticsearch get request using rest-client ruby gem

问题描述

如何执行以下查询（在 doc <中给出/ a>）使用其余客户端。

How do I execute the below query(given in doc) using rest client.

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
'

我尝试这样做：

q = '{
    "query" : {
        "term" : { "user" : "kimchy" }
    }
}
'

r = JSON.parse(RestClient.get('http://localhost:9200/twitter/tweet/_search', q))

这引发了错误：

in `process_url_params': undefined method `delete_if' for #<String:0x8b12e18>     (NoMethodError)
    from /home/socialapps/.rvm/gems/ruby-1.9.3-p194/gems/rest-client-1.6.7/lib/restclient/request.rb:40:in `initialize'
    from /home/socialapps/.rvm/gems/ruby-1.9.3-p194/gems/rest-client-1.6.7/lib/restclient/request.rb:33:in `new'
    from /home/socialapps/.rvm/gems/ruby-1.9.3-p194/gems/rest-client-1.6.7/lib/restclient/request.rb:33:in `execute'
    from /home/socialapps/.rvm/gems/ruby-1.9.3-p194/gems/rest-client-1.6.7/lib/restclient.rb:68:in `get'
    from get_check2.rb:12:in `<main>'

中，当我使用 RestClient进行相同操作时。发布，它给了我正确的结果！但是elasticsearch doc在curl命令中使用 XGET 进行搜索查询，而不使用 XPOST 。如何使 RestClient.get 方法起作用？

When I do the same using RestClient.post, it gives me the right results!. But the elasticsearch doc uses XGET in curl command for the search query and not XPOST. How do I get the RestClient.get method to work?

如果有其他/更好的方法来执行此操作，请提出建议。

If there are alternate/better ways of doing this action, please suggest.

推荐答案

RestClient无法使用 GET 发送请求正文。您有两种选择：

RestClient can't send request bodies with GET. You've got two options:

将查询作为来源 URL参数传递：

Pass your query as the source URL parameter:

require 'rest_client'
require 'json'

# RestClient.log=STDOUT # Optionally turn on logging

q = '{
    "query" : { "term" : { "user" : "kimchy" } }
}
'
r = JSON.parse \
      RestClient.get( 'http://localhost:9200/twitter/tweet/_search',
                      params: { source: q } )

puts r

...或只使用 POST 。

UPDATE：修复了URL参数的错误传递，请注意参数哈希。

UPDATE: Fixed incorrect passing of the URL parameter, notice the params Hash.

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