---
sidebar_label: REST
title: REST
description: Insert data using REST API
---

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In this section we will explain how to query data from TDengine cloud service using REST API.

## Config

Run this command in your terminal to save the TDengine cloud token and URL as variables:

<Tabs defaultValue="bash">
<TabItem value="bash" label="Bash">

```bash
export TDENGINE_CLOUD_TOKEN="<token>"
export TDENGINE_CLOUD_URL="<url>"
```

</TabItem>
<TabItem value="cmd" label="CMD">

```bash
set TDENGINE_CLOUD_TOKEN="<token>"
set TDENGINE_CLOUD_URL="<url>"
```

</TabItem>
<TabItem value="powershell" label="Powershell">

```powershell
$env:TDENGINE_CLOUD_TOKEN="<token>"
$env:TDENGINE_CLOUD_URL="<url>"
```

</TabItem>
</Tabs>

## Query

Following command below show how to query data into from table `ins_databases` of the database `information_schema` via the command line utility `curl`.

```bash
curl -L \
  -d "select name, ntables, status from information_schema.ins_databases;" \
  $TDENGINE_CLOUD_URL/rest/sql/test?token=$TDENGINE_CLOUD_TOKEN
```

Please refer to [REST-API](https://docs.tdengine.com/reference/rest-api/) for detailed documentation.