# Finding out if result from query is different from previous result

**URL:** https://discuss.elastic.co/t/finding-out-if-result-from-query-is-different-from-previous-result/137519
**Category:** Elasticsearch
**Created:** [June 26, 2018, 10:08pm UTC](https://discuss.elastic.co/t/finding-out-if-result-from-query-is-different-from-previous-result/137519 "2018-06-26T22:08:32Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![magnusw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusw/32/32714_2.png) [@magnusw](https://discuss.elastic.co/u/magnusw)
#### Post date: [June 26, 2018, 10:08pm UTC](https://discuss.elastic.co/t/finding-out-if-result-from-query-is-different-from-previous-result/137519/1 "2018-06-26T22:08:32Z")

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Hi,

I'm using javascript 'elasticsearch.js' to query and the Sequence diagram lib 'mermaid.js' to create sequence diagram from elasticsearch data. Below is some of my code.

Question: Is there a way to check if a result (data here) is the same as last time I used search?

```
  data = {
       ...
      "body": {
        "query": {
          "bool" : {
              "must" : [
                time_range
              ]
          }
      ....

  const response = client.search(data, function(error, response, status) {
```

---

<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 24, 2018, 10:15pm UTC](https://discuss.elastic.co/t/finding-out-if-result-from-query-is-different-from-previous-result/137519/2 "2018-07-24T22:15:18Z")

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