title: Translate Elasticsearch DSL to gopkg.in/olivere/elastic.v5
body: <p>
  I've got json that I want to translate into an Elasticsearch query using <a href="https://godoc.org/gopkg.in/olivere/elastic.v5" rel="nofollow noreferrer">https://godoc.org/gopkg.in/olivere/elastic.v5</a></p>
  
  <p>
  json = </p>
  
  <pre><code>{
    "query": {
      "bool": {
        "filter": [
          {
            "exists": {
              "field": "Videos.en"
            }
          }
        ]
      }
    }
  }
  </code></pre>
  
  <p>
  Pretty simple!  What I've got so far - which clearly isn't working - is:</p>
  
  <pre><code>enVidsQuery, err := elastic.NewBoolQuery().
          Filter(elastic.Exists("field", "Videos.en"))
  </code></pre>
  
  <p>Where <code>elastic</code> references "gopkg.in/olivere/elastic.v5" in my imports.</p>
  
  <p>
  Can anyone provide me with the correct syntax?  I figure it's a trivial solution for anyone familiar with the library.</p>