# Elasticsearch Java Client 8.7 String List to FieldAndFormat List

**URL:** <https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677>\
**Category:** Elasticsearch\
**Tags:** language-clients\
**Created:** [May 17, 2023, 3:48pm UTC](https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677 "2023-05-17T15:48:45Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tcpeiris](https://avatars.discourse-cdn.com/v4/letter/t/54ee81/32.png) [@tcpeiris](https://discuss.elastic.co/u/tcpeiris)\
**Post date:** [May 17, 2023, 3:48pm UTC](https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677/1 "2023-05-17T15:48:45Z")

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How do I pass Java String List to .fields as FieldAndFormat in search(req -\> req.index(index).fields())

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**Author:** ![RabBit\_BR](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rabbit_br/32/82261_2.png) [@RabBit\_BR](https://discuss.elastic.co/u/RabBit_BR)\
**Post date:** [May 17, 2023, 6:04pm UTC](https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677/2 "2023-05-17T18:04:57Z")

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Hi @tcpeiris

Are you looking for it?

```
var list = List.of(
    FieldAndFormat.of(ff -> ff.field("fieldA")),
    FieldAndFormat.of(ff -> ff.field("timestamp").format("epoch_millis")));

var request = SearchRequest.of(sr -> sr
    .index("idx_movies").fields(list));

```

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<div class="post-metadata">

**Author:** ![tcpeiris](https://avatars.discourse-cdn.com/v4/letter/t/54ee81/32.png) [@tcpeiris](https://discuss.elastic.co/u/tcpeiris)\
**Post date:** [May 18, 2023, 3:38am UTC](https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677/3 "2023-05-18T03:38:43Z")

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Hi. This is exactly what I was looking for. Thank you very much.

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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:** [June 15, 2023, 3:39am UTC](https://discuss.elastic.co/t/elasticsearch-java-client-8-7-string-list-to-fieldandformat-list/333677/4 "2023-06-15T03:39:29Z")

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