Support for Document Partial Updates

[robvolk]

I'd like to use Elastic's Update API to make partial or scripted update to an existing document. Any plans on adding this? thanks in advance!

[robvolk]

Here's the code I used and I'll try to open a PR at some point:

uri = "#{Elastix.config(:uri)}/index_name/type/#{id}/_update"
    body = %{
      script: %{
        inline: "ctx._source.tags.add(params.tag)",
        lang: "painless",
        params: %{
          tag: %{
            name: name,
          }
        }
      }
    }

    {_, response} = Elastix.HTTP.post(uri, Poison.encode!(body))

[werbitzky]

Would be a good next feature! I'll milestone it for the next version.