Indexing Attachment file to elastic search

Question

I have typed this command to index a document in Elasticsearch

create an index

curl -X PUT \"localhost:9200/test_idx_1x\"
         


        

Answer 1

First, you don't specify whether you have the attachment plugin installed. If not, you can do so with:

./bin/plugin -install mapper-attachments

You will need to restart ElasticSearch for it to load the plugin.

Then, as you do above, you map a field to have type attachment:

curl -XPUT 'http://127.0.0.1:9200/foo/?pretty=1'  -d '
{
   "mappings" : {
      "doc" : {
         "properties" : {
            "file" : {
               "type" : "attachment"
            }
         }
      }
   }
}
'

When you try to index a document, you need to encode the contents of your file in Base64. You could do this on the command line using the base64 command line utility. However, to be legal JSON, you also need to encode new lines, which you can do by piping the output from base64 through Perl:

curl -XPOST 'http://127.0.0.1:9200/foo/doc?pretty=1'  -d '
{
   "file" : '`base64 /path/to/file | perl -pe 's/\n/\\n/g'`'
}
'

Now you can search your file:

curl -XGET 'http://127.0.0.1:9200/foo/doc/_search?pretty=1'  -d '
{
   "query" : {
      "text" : {
         "file" : "text to look for"
      }
   }
}
'

See ElasticSearch attachment type for more.