Overview
The mongodb node stores and retrieves JSON documents from MongoDB.
Perfect for IoT data with varying structures, it supports flexible schemas, powerful queries,
and horizontal scaling through sharding.
JSON
Native Documents
Schema
Flexible
Atlas
Cloud Support
Aggregation
Pipeline
Properties
| Property | Type | Default | Description |
|---|---|---|---|
| uri | string | "mongodb://localhost" | Connection URI |
| database | string | "edgeflow" | Database name |
| collection | string | "data" | Collection name |
| operation | string | "insert" | insert, find, update, delete, aggregate |
Operations
insert
{
"payload": {
"device": "pi-001",
"temp": 23.5,
"timestamp": new Date()
}
}find
{
"payload": {
"device": "pi-001",
"temp": { "$gt": 20 }
}
}update
{
"filter": { "device": "pi-001" },
"update": { "$set": { "status": "active" } }
}aggregate
{
"payload": [
{ "$match": { "device": "pi-001" } },
{ "$group": { "_id": "$device", "avg": { "$avg": "$temp" } } }
]
}