# Object interpolation in template queries

**URL:** <https://discuss.elastic.co/t/object-interpolation-in-template-queries/17574>\
**Category:** Elasticsearch\
**Created:** [May 18, 2014, 12:49am UTC](https://discuss.elastic.co/t/object-interpolation-in-template-queries/17574 "2014-05-18T00:49:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex\_G](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@Alex\_G](https://discuss.elastic.co/u/Alex_G)\
**Post date:** [May 18, 2014, 12:49am UTC](https://discuss.elastic.co/t/object-interpolation-in-template-queries/17574/1 "2014-05-18T00:49:39Z")

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Hello,

I'm interested in using query templates -  
[http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-template-query.html](http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-template-query.html)

- however for my purposes I was hoping ES treaded queries as simple strings  
for the purpose of mustache interpretation and I would to be able to  
substitute in parameters more complex than partial strings - for example to  
define a param as the contents of a value and then pass in an arbitrary  
object.

IE something along the lines of  
{  
"query": {  
"template": {  
"query": {  
"filtered": {  
"filter" : {  
"and" : {{ filters }}  
}  
}  
},  
"params" : {  
"filters" : [  
{"terms" : { "foo" : ["a","b"] } },  
{"terms" : { "bar" : ["q","z"] } }  
]  
}  
}  
}  
}

Experimentation suggests this isn't supported but I understand that the  
query templates system is somewhat under construction or review - are there  
plans to offer support for passing in entire parts of queries via params or  
should I look at doing this kind of interpolation before the query gets to  
ES? Or is this possible and I'm simply doing it wrong?

Thanks,  
Alex

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 1:28am UTC](https://discuss.elastic.co/t/object-interpolation-in-template-queries/17574/2 "2017-07-06T01:28:40Z")

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