# InfluxDB Connectivity (Connector)

To present fields of InfluxDB database as OPC UA items the server provides InfluxDB Connector. The device periodically sends requests to the database and maps the received query result to the associated tags (variables).

{% hint style="info" %}
Variables hereinafter are referred to tags specified in the server, and tags are referred to tags used in InfluxDB to store time series metadata
{% endhint %}

### Key Features <a href="#h.auy1ifvf0z1p" id="h.auy1ifvf0z1p"></a>

* Data fetch by using of Influx Query Language.
* Data writing by using of Influx Line Protocol.
* Data types: Boolean, Byte, Word, Int, DWord, DInt (32-bit signed integer), Float, Double, QWord, Long, String, DateTime.
* Block data reading.
* OPC UA Historical access (raw/aggregated data reading).


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.