# Watcherのconditionに変数を設定する方法について

**URL:** <https://discuss.elastic.co/t/watcher-condition/274472>\
**Category:** 日本語による質問・議論はこちら\
**Created:** [May 31, 2021, 8:14am UTC](https://discuss.elastic.co/t/watcher-condition/274472 "2021-05-31T08:14:50Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![t-nakata](https://avatars.discourse-cdn.com/v4/letter/t/8491ac/32.png) [@t-nakata](https://discuss.elastic.co/u/t-nakata)\
**Post date:** [May 31, 2021, 8:14am UTC](https://discuss.elastic.co/t/watcher-condition/274472/1 "2021-05-31T08:14:50Z")

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watcherのconditionに変数を設定する方法についてご教示頂けないでしょうか。

実現したいこと  
参考：

> **[Watcher compare condition | Elasticsearch Guide \[7.x\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/7.x/condition-compare.html)**

```
{
  "condition" : {
    "compare" : {
      "ctx.payload.hits.total" : { 
        "gte" : 5 
      }
    }
  }
}

```

例えば、上記の「5」という定数の代わりに、inputとなるインデックスAのNUMフィールドから取得した値を設定したいです。  
このようなことが実現可能かどうか、ご教示頂けないでしょうか

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<div class="post-metadata">

**Author:** ![bruce\_shimizu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bruce_shimizu/32/68786_2.png) [@bruce\_shimizu](https://discuss.elastic.co/u/bruce_shimizu)\
**Post date:** [June 2, 2021, 2:15am UTC](https://discuss.elastic.co/t/watcher-condition/274472/2 "2021-06-02T02:15:28Z")

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Painlessの出番ですね。

> **[Watcher condition context | Painless Scripting Language \[7.13\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/painless/current/painless-watcher-condition-context.html)**

この辺に良いサンプルがあるかも？です。

> **[elastic/examples](https://github.com/elastic/examples/tree/master/Alerting/Sample%20Watches)**
>
> master/Alerting/Sample%20Watches

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<div class="post-metadata">

**Author:** ![t-nakata](https://avatars.discourse-cdn.com/v4/letter/t/8491ac/32.png) [@t-nakata](https://discuss.elastic.co/u/t-nakata)\
**Post date:** [June 3, 2021, 12:25am UTC](https://discuss.elastic.co/t/watcher-condition/274472/3 "2021-06-03T00:25:00Z")

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ご回答ありがとうございます。参考にさせていただきます

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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 1, 2021, 12:25am UTC](https://discuss.elastic.co/t/watcher-condition/274472/4 "2021-07-01T00:25:28Z")

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