# iotdb_node

**Repository Path**: dufzh/iotdb_node

## Basic Information

- **Project Name**: iotdb_node
- **Description**: node-red中的iotdb节点
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-05-14
- **Last Updated**: 2026-05-14

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# node-red-contrib-iotdb

Node-RED nodes for Apache IoTDB

## Installation

```bash
cd ~/.node-red
npm install node-red-contrib-iotdb
```

Or for local development:

```bash
cd /path/to/node-red-contrib-iotdb
npm link
cd ~/.node-red
npm link node-red-contrib-iotdb
```

## Nodes

### iotdb-config

Configuration node for IoTDB server connection.

**Properties:**
- Host: IoTDB server host
- Port: IoTDB server port (default 6667)
- Username: IoTDB username
- Password: IoTDB password
- Timezone: Timezone

### iotdb-in

Query data from IoTDB.

**Query modes:
- Custom SQL: Execute custom SQL query
- Template: Use predefined templates

**Predefined templates:**
- Latest Data
- Time Range Query
- Latest N Records
- Average
- Sum
- Max
- Min
- Count
- Group By Time

**Inputs:**
- payload: SQL string (custom mode) or parameters object (template mode)

**Outputs:**
- payload: Query result array

### iotdb-out

Write data to IoTDB.

**Write modes:**
- Single Record: Write single time-series record
- Batch: Write multiple records

**Input payload format (single):
```javascript
{
  timestamp: 1600000000000,
  measurements: {
    temperature: 25.5,
    humidity: 60
  }
}
```

**Input payload format (batch):
```javascript
[
  { timestamp: 1600000000000, measurements: { temperature: 25.5 } },
  { timestamp: 1600000001000, measurements: { temperature: 26.0 } }
]
```

### iotdb-delete

Delete data from IoTDB.

**Delete modes:**
- Time Range: Delete data in specified time range
- Delete Device: Delete entire device
- Delete Timeseries: Delete specific time series

### iotdb-batch

Execute multiple SQL statements.

**Input:** Array of SQL strings or semicolon-separated SQL string.

**Output:** Array of execution results.

## Requirements

- Node.js >= 12.x
- Node-RED >= 1.x
- Apache IoTDB >= 2.x