Pass a list to Elasticsearch query template - list

Question

I am trying to pass a list of parameters to a search query (filter by terms) in Elasticsearch. It works when it's not in a template, just in a query:
"terms": {
"speaker": ["HAMLET", "KING HENRY IV"]
}
I've put it into the template like this:
"terms": {
"{{filter1}}": "{{filter1_val}}"}
}
And then call it like this:
GET shakespeare/_search/template
{
"id":"template",
"params": {
"filter1": "speaker",
"filter_value1": ["HAMLET", "KING HENRY IV"]
}
}
And I get the following error:
{
"error": {
"root_cause": [
{
"type": "parsing_exception",
"reason": "[terms] query does not support [speaker]",
"line": 1,
"col": 98
}
],
"type": "parsing_exception",
"reason": "[terms] query does not support [speaker]",
"line": 1,
"col": 98
},
"status": 400
}
I have tried adding brackets to the template itself like "{{filter1}}": [{{filter1_val}}] and adding quotes and deleting them, and passing a parameters in the form of "[\"HAMLET\", \"KING HENRY IV\"]", but none of this worked.
What am I doing wrong? What is the right way to do this? Any suggestions are welcome.
Thank you!

Answer 1

Found the solution here:
https://www.elastic.co/guide/en/elasticsearch/reference/1.6/search-template.html#_passing_an_array_of_strings
Passing an array of strings
GET /_search/template
{
"template": {
"query": {
"terms": {
"status": [
"{{#status}}",
"{{.}}",
"{{/status}}"
]
}
}
},
"params": {
"status": [ "pending", "published" ]
}
}
which is rendered as:
{
"query": {
"terms": {
"status": [ "pending", "published" ]
}
}