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https://github.com/socketsomeone/nestjs-hot-shots

🐶 Hot-shots Module for Nest.js Framework
https://github.com/socketsomeone/nestjs-hot-shots

datadog hot-shots metrics nest nestjs telegraf typescript

Last synced: 7 months ago
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🐶 Hot-shots Module for Nest.js Framework

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README

          

# NestJS Hot-shots ![npm](https://img.shields.io/npm/v/nestjs-hot-shots) ![LICENSE](https://img.shields.io/npm/l/nestjs-hot-shots) ![Downloads](https://img.shields.io/npm/dm/nestjs-hot-shots) ![Last Commit](https://img.shields.io/github/last-commit/SocketSomeone/nestjs-hot-shots)

Nest.JS logo

Hot-shots Module for Nest.js Framework. A Node.js client for [Etsy](http://etsy.com)'s [StatsD](https://github.com/statsd/statsd) server,
Datadog's [DogStatsD](https://docs.datadoghq.com/developers/dogstatsd/?tab=hostagent) server,
and [InfluxDB's](https://github.com/influxdata/telegraf) Telegraf
StatsD server.

**Features**

- TypeScript types
- Telegraf support
- Events
- Child clients
- TCP/UDS Protocol support
- Raw Stream Protocol support
- Mock mode
- Much more, including many bug fixes

For questions and support please use
the [Issues](https://github.com/SocketSomeone/nestjs-hot-shots/issues/new?assignees=&labels=question&template=question.yml).

## Installation

```bash
$ npm i nestjs-hot-shots hot-shots
$ yarn add nestjs-hot-shots hot-shots
$ pnpm add nestjs-hot-shots hot-shots
```

## Usage

Once the installation process is complete, we can import the `HotShotsModule` into the root `AppModule`:

```typescript
import { Module } from '@nestjs/common'
import { HotShotsModule } from 'nestjs-hot-shots';

@Module({
imports: [
HotShotsModule.forRoot({
port: 8020,
globalTags: { env: process.env.NODE_ENV }
})
]
})
export class AppModule {
}
```

Then inject `StatsD` provider for use `hot-shots`:

```typescript
import { Injectable } from '@nestjs/common';
import { StatsD } from 'hot-shots';

@Injectable()
export class AppMetrics {
public constructor(private readonly metrics: StatsD) {
}

public metricStuff() {
this.metrics.increment('somecounter');
}
}
```

### Metrics

You can use the `MetricsService` for metrics collection. It`s factory for creating metrics. It provides a set of methods to create different
types of metrics, such as counters, gauges, and histograms.

```typescript
import { Controller, Post } from '@nestjs/common';
import { MetricsService } from 'nestjs-hot-shots';
import { StatsD } from 'hot-shots';

@Controller
export class BooksController {
private readonly booksAdded = this.metricsService.getCounter('books.added.count');

public constructor(private readonly metricsService: MetricsService) {
}

@Post()
public async addBook() {
// some logic
this.booksAdded.add();
}
}
```

| Method | Description |
|----------------------------------|--------------------------------------------------------|
| `getCounter(name: string)` | Returns a counter metric with the given name. |
| `getGauge(name: string)` | Returns a gauge metric with the given name. |
| `getHistogram(name: string)` | Returns a histogram metric with the given name. |
| `getTimer(name: string)` | Returns a timer metric with the given name. |
| `getUpDownCounter(name: string)` | Returns an up-down counter metric with the given name. |

### HTTP Metrics via Middleware

You can use the `HttpMetricsMiddleware` to collect HTTP metrics. It will automatically collect metrics for all incoming requests and
outgoing responses.

```typescript
import { Module } from '@nestjs/common';
import { HotShotsModule } from 'nestjs-hot-shots';
import { HttpMetricsMiddleware } from 'nestjs-hot-shots';

@Module({
imports: [
HotShotsModule.forRoot({
...
})
]
})
export class AppModule {
public configure(consumer: MiddlewareConsumer) {
consumer
.apply(HttpMetricsMiddleware)
.forRoutes('*');
}
}
```

| Metric | Description | Type |
|--------------------------------------|-------------------------------------------------|-----------|
| `http_server_request_count` | Total number of requests received by the server | Counter |
| `http_server_response_count` | Total number of responses sent by the server | Counter |
| `http_server_duration` | Total time taken to process requests | Histogram |
| `http_server_request_size` | Size of incoming bytes. | Histogram |
| `http_server_response_size` | Size of outgoing bytes. | Histogram |
| `http_server_response_success_count` | Total number of all successful responses. | Counter |
| `http_server_response_error_count` | Total number of server error responses. | Counter |
| `http_client_request_error_count` | Total number of client error requests. | Counter |
| `http_server_abort_count` | Total number of aborted requests | Counter |

> Inspired by [nestjs-otel](https://github.com/pragmaticivan/nestjs-otel)

See the [hot-shots](https://www.npmjs.com/package/hot-shots) module for more details.

## Stay in touch

* Author - [Alexey Filippov](https://t.me/socketsomeone)
* Twitter - [@SocketSomeone](https://twitter.com/SocketSomeone)

## License

[MIT](https://github.com/SocketSomeone/nestjs-hot-shots/blob/master/LICENSE) © [Alexey Filippov](https://github.com/SocketSomeone)