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https://github.com/haohanyang/mongodb-datasource

MongoDB datasource for Grafana
https://github.com/haohanyang/mongodb-datasource

golang grafana mongodb react

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MongoDB datasource for Grafana

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# Grafana MongoDB Data Source

Integrate MongoDB to Grafana

![ci](https://github.com/haohanyang/mongodb-datasource/actions/workflows/ci.yml/badge.svg?branch=master)

This plugin enables you to query and visualize data from your MongoDB databases directly within Grafana. Leverage the flexibility of MongoDB's aggregation pipeline to create insightful dashboards and panels.

![screenshot](/static/screenshot.png)

## Features

- **Flexible Querying:** Query data using MongoDB's aggregation pipeline syntax in JSON or JavaScript. Support query variables to create dynamic dashboards.
- **Time Series & Table Data:** Visualize time-based data or display results in tabular format for various Grafana panels.
- **MongoDB Atlas Support** Connect to MongoDB Atlas Services.
- **Legacy Plugin Compatibility:** Easy migrate from the legacy plugin with support for its query syntax.

## Authentication methods
* No authentication
* Username/Password authentication

## Getting Started
### Quick start
Run the script [quick_start.py](scripts/quick_start.py) in the root directory to start MongoDB and Grafana containers with the plugin
```
python3 scripts/quick_start.py
```
### Full steps
1. **Download:** Obtain the latest plugin build from the [Release page](https://github.com/haohanyang/mongodb-datasource/releases) or [workflow artifacts](https://github.com/haohanyang/mongodb-datasource/actions?query=branch%3Amaster).

2. **Install:**
- Extract the downloaded archive (`haohanyang-mongodb-datasource-.zip`) into your Grafana plugins directory (`/var/lib/grafana/plugins` or similar).
- Ensure the plugin binaries (`mongodb-datasource/gpx_mongodb_datasource_*`) have execute permissions (`chmod +x`).
- Configure the plugin as a data source within Grafana, providing your MongoDB connection details.

Refer to the [example docker-compose.prod.yaml](/docker-compose.prod.yaml) file for a production-ready setup.

3. **Start Querying:**
- Select your MongoDB data source in a Grafana panel.
- Use the query editor to write your aggregation pipeline queries (see Query Language below).

## Query Language

### JSON (Recommended)

Provide the collection name and your MongoDB aggregation pipeline in standard JSON format.

**Example:** Retrieve 10 AirBnB listings scraped within the selected time range:
```json
[
{
"$match": {
"last_scraped": {
"$gt": {
"$date": {
"$numberLong": "$__from"
}
},
"$lt": {
"$date": {
"$numberLong": "$__to"
}
}
}
}
},
{
"$limit": 10
}
]
```

### JavaScript (Legacy & ShadowRealm)

- **Legacy:** Maintain compatibility with the older plugin's syntax:
```javascript
db.listingsAndReviews.aggregate([ /* Your aggregation pipeline (JSON) */ ]);
```
This gives the same result as the previous JSON query.
```js
db.listingsAndReviews.aggregate([
{
"$match": {
"last_scraped": {
"$gt": {
"$date": {
"$numberLong": "$__from"
}
},
"$lt": {
"$date": {
"$numberLong": "$__to"
}
}
}
}
},
{
"$limit": 10
}
])
```
- **ShadowRealm (Secure):** Define an `aggregate()` function that returns your pipeline. The function executes within a [ShadowRealm](https://github.com/tc39/proposal-shadowrealm) sandboxed environment.
```javascript
function aggregate() {
// ... your logic based on template variables ...
return [ /* Your aggregation pipeline */ ];
}
```
In this example, only the admin user to can view the query result.
```js
function aggregate() {
const user = "${__user.login}"
let filter = {}
if (user !== "admin") {
filter = {
noop: true
}
}
return [
{
$match: filter
},
{
$limit: 10
}
]
}
```

### Query Types

- **Time series:** For time-based visualizations. Your query must return documents with `ts` (timestamp) and `value` fields. An optional `name` field enables grouping by category.

The following query of [Sample AirBnB Listings Dataset](https://www.mongodb.com/docs/atlas/sample-data/sample-airbnb/) shows the number of AirBnB listings in each month that have the first review in the selected time range.
```json
[
{
"$match": {
"first_review": {
"$gt": {
"$date": {
"$numberLong": "$__from"
}
},
"$lt": {
"$date": {
"$numberLong": "$__to"
}
}
}
}
},
{
"$group": {
"_id": {
"month": {
"$dateToString": {
"format": "%Y-%m",
"date": "$first_review"
}
},
"property_type": "$property_type"
},
"value": {
"$count": {}
}
}
},
{
"$project": {
"ts": {
"$toDate": "$_id.month"
},
"name": "$_id.property_type",
"value": 1
}
}
]
```
- **Table:** For more flexible data display in tables, pie charts, etc. No specific output schema is required.

## Supported Data Types

| BSON Type | Support | Go Type | Notes |
|-----------------------|---------|-------------------|-------------------------------------------|
| Double | ✅ | float64 | |
| String | ✅ | string | |
| Object | ✅ | json.RawMessage | May be converted to string if necessary |
| Array | ✅ | json.RawMessage | May be converted to string if necessary |
| ObjectId | ✅ | string | |
| Boolean | ✅ | bool | |
| Date | ✅ | time.Time | |
| Null | ✅ | nil | |
| 32-bit integer | ✅ | int32 | May be converted to int64/float64 |
| 64-bit integer | ✅ | int64 | May be converted to float64 |

**Note:** Unsupported BSON types are not included in the table and will display as `"[Unsupported type]"`.

## License
Apache-2.0