## Metrics for casts

### cURL

```bash
curl --request GET \
  --url https://api.neynar.com/v2/farcaster/cast/metrics/ \
  --header 'x-api-key: NEYNAR_API_DOCS'
```

### Python

```python
import requests

url = "https://api.neynar.com/v2/farcaster/cast/metrics/"

headers = {"x-api-key": "NEYNAR_API_DOCS"}

response = requests.get(url, headers=headers)

print(response.text)
```

### JavaScript (Fetch)

```javascript
const options = {method: 'GET', headers: {'x-api-key': 'NEYNAR_API_DOCS'}};

fetch('https://api.neynar.com/v2/farcaster/cast/metrics/', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

### PHP

```php
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.neynar.com/v2/farcaster/cast/metrics/",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "x-api-key: NEYNAR_API_DOCS"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
```

### Go

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

url := "https://api.neynar.com/v2/farcaster/cast/metrics/"

req, _ := http.NewRequest("GET", url, nil)

req.Header.Add("x-api-key", "NEYNAR_API_DOCS")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))
}
```

### Java (Unirest)

```java
HttpResponse<String> response = Unirest.get("https://api.neynar.com/v2/farcaster/cast/metrics/")
  .header("x-api-key", "NEYNAR_API_DOCS")
  .asString();
```

### Ruby

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.neynar.com/v2/farcaster/cast/metrics/")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["x-api-key"] = 'NEYNAR_API_DOCS'

response = http.request(request)
puts response.read_body
```

### Response Codes

- 200
- 400

### JSON Response

```json
{
  "metrics": [
    {
      "cast_count": 123,
      "resolution_in_seconds": 123,
      "start": "2023-11-07T05:31:56Z"
    }
  ]
}
```

### Error Response

```json
{
  "message": "<string>",
  "code": "<string>",
  "property": "<string>",
  "status": 123
}
```

## Node.js SDK

### SDK Method: [fetchCastMetrics](https://docs.neynar.com/nodejs-sdk/metric-apis/fetchCastMetrics)
Use this API endpoint with the Neynar Node.js SDK for typed responses and better developer experience.

### Authorizations
- **x-api-key**: string (header, default: NEYNAR_API_DOCS, required)

### Headers
- **x-neynar-experimental**: boolean (header, default: false)

### Query Parameters
- **q**: string (required)  
  Example: `"star wars"`
- **interval**: enum<string> (default: 30d)  
  Available options: `1d`, `7d`, `30d`, `90d`, `180d`
- **author_fid**: integer (required)
- **channel_id**: string

### Response
- **200**: application/json

#### Response Object
- **metrics**: CastsMetrics · object[] (required)

### Related Topics
- [fetchCastMetrics](https://docs.neynar.com/nodejs-sdk/metric-apis/fetchCastMetrics)  
- [On cast](https://docs.neynar.com/reference/fetch-cast-reactions-1)  
- [To a target URL](https://docs.neynar.com/reference/fetch-reactions-by-target)  
- [Usage of user](https://docs.neynar.com/reference/lookup-user-storage-usage)  
- [Explore Event Propagation on Farcaster](https://docs.neynar.com/docs/explore-event-propagation-on-farcaster)