ElasticSearch Refresh Synonyms

curl -XPOST 'localhost:9200/my_index/_close'

curl -XPUT 'localhost:9200/my_index/_settings' -d '
{
    "index" : {
        "analysis.filter.synonym.synonyms_path" : "synonyms.txt"
    }
}'

curl -XPOST 'localhost:9200/my_index/\_open'