ToolJet allows you to connect to your Elasticsearch cluster to perform data read/write operations and execute various queries.
## Connection
To connect to an Elasticsearch data source in ToolJet, you can either click the **+ Add new data source** button on the query panel or navigate to the **[Data Sources](/docs/data-sources/overview)** page in the ToolJet dashboard.
:::info
Please make sure the **Host/IP** of the database is accessible from your VPC if you have self-hosted ToolJet. If you are using ToolJet cloud, please **whitelist** our IP.
:::
To connect to your Elasticsearch cluster, the following details are required:
1. Click the **+ Add** button in the query manager at the bottom of the editor and select the Elasticsearch data source added earlier.
2. Choose the operation you want to perform on your Elasticsearch cluster.
:::tip
Query results can be transformed using transformations. Refer to our transformations documentation for more details: **[link](/docs/tutorial/transformations)**
:::
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## Supported Operations
ToolJet supports the following Elasticsearch operations:
This operation executes a search query and returns matching search hits. For more details, see the Elasticsearch search guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/search-search.html)**.
This operation adds a JSON document to the specified index or data stream. For more details, see the Elasticsearch index guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html)**.
#### Required Parameter
- **Index**: The name of the index to add the document to
This operation retrieves the specified JSON document from the index. For more details, see the Elasticsearch get guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-get.html)**.
#### Required Parameter
- **Index**: The name of the index to get the document from
This operation updates a document using the specified script. For more details, see the Elasticsearch update guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-update.html)**.
#### Required Parameter
- **Index**: The name of the index containing the document
- **Id**: The ID of the document to update
- **Body**: The update script or partial document in JSON format
This operation removes a JSON document from the specified index. For more details, see the Elasticsearch delete guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-delete.html)**.
#### Required Parameter
- **Index**: The name of the index containing the document
This operation performs multiple index/update/delete operations in a single API call. For more details, see the Elasticsearch bulk guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html)**.
#### Required Parameter
- **Operations**: The bulk operations to perform in JSON format
This operation returns the number of matches for a search query. For more details, see the Elasticsearch count guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/search-count.html)**.
#### Required Parameter
- **Index**: The name of the index to count documents in.
#### Optional Parameter
- **Query**: The query to filter documents in JSON format
This operation checks if a document exists in an index. For more details, see the Elasticsearch exists guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-get.html#docs-get-api-response-codes)**.
#### Required Parameter:
- **Index**: The name of the index to check for document existence
This operation retrieves multiple documents in a single request. For more details, see the Elasticsearch multi-get guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-multi-get.html)**.
#### Required Parameter
- **Operations**: The multi-get operations to perform in JSON format
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<imgclassName="screenshot-full"src="/img/datasource-reference/elasticsearch/mget.png"alt="Elastic multi get"style={{marginBottom:'15px'}}/>
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#### Example:
```yaml
{
"docs": [
{ "_index": "books", "_id": "book124" },
{ "_index": "books", "_id": "book125" }
]
}
```
### Scroll Search
This operation retrieves large numbers of results from a single search request. For more details, see the Elasticsearch scroll guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/paginate-search-results.html#scroll-search-results)**.
This operation clears the search context for a scroll. For more details, see the Elasticsearch clear scroll guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/clear-scroll-api.html)**.
This operation provides a compact, column-aligned view of indices in a cluster. For more details, see the Elasticsearch cat indices guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-indices.html)**.
This operation retrieves the status of the cluster’s health. For more details, see the Elasticsearch cluster health guide **[here](https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html)**.
