# Elasticsearch Processors

**URL:** <https://discuss.elastic.co/t/elasticsearch-processors/141435>\
**Category:** Elasticsearch\
**Created:** [July 24, 2018, 7:21pm UTC](https://discuss.elastic.co/t/elasticsearch-processors/141435 "2018-07-24T19:21:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![amandrell](https://avatars.discourse-cdn.com/v4/letter/a/bbe5ce/32.png) [@amandrell](https://discuss.elastic.co/u/amandrell)\
**Post date:** [July 24, 2018, 7:21pm UTC](https://discuss.elastic.co/t/elasticsearch-processors/141435/1 "2018-07-24T19:21:58Z")

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Hello,

I am going through the list of Processors to use to pre-process documents before they get indexed into ES. For example, let's talk about the Convert Processor. I understand that it is necessary to provide the "field" (the field whose value is to be converted). Say that somewhere in my document, I have an array called "stringRowArray" that contains other fields. Within this array, say I have a field called "name" with each item. When I provide "name" as the "field" in the Convert Processor, and load my data, none of these "name" fields gets changed. I get a "java.lang.IllegalArgumentException: java.lang.IllegalArgumentException: field [name] not present as part of path [name]" error when I try to create the static mapping (i.e, my\_index/\_my\_doc/my\_id?pipeline=my\_pipeline). What am I doing incorrectly? My initial understanding is that the processor goes through the document, string by string, and finds a match to the provided "field," then processes it as necessary.

How do I provide the correct field if it is not just the "name" itself?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 24, 2018, 9:43pm UTC](https://discuss.elastic.co/t/elasticsearch-processors/141435/2 "2018-07-24T21:43:37Z")

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You probably need to specify the full path, so try `[stringRowArray][name]`.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 22, 2018, 6:23pm UTC](https://discuss.elastic.co/t/elasticsearch-processors/141435/4 "2018-08-22T18:23:24Z")

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Closed on August 22, 2018, 6:23pm UTC

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