## List MeterGroups

### cURL

```bash
curl --request GET \
  --url https://api.m3ter.com/organizations/{orgId}/metergroups \
  --header 'Authorization: Bearer <token>'
```

### Python

```python
import requests

url = "https://api.m3ter.com/organizations/{orgId}/metergroups"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)
```

### JavaScript (Fetch)

```javascript
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.m3ter.com/organizations/{orgId}/metergroups', 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.m3ter.com/organizations/{orgId}/metergroups",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($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.m3ter.com/organizations/{orgId}/metergroups"

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

req.Header.Add("Authorization", "Bearer <token>")

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

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

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

### Unirest (Java)

```java
HttpResponse<String> response = Unirest.get("https://api.m3ter.com/organizations/{orgId}/metergroups")
  .header("Authorization", "Bearer <token>")
  .asString();
```

### Ruby

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

url = URI("https://api.m3ter.com/organizations/{orgId}/metergroups")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

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

### Response

#### 200 Response Structure
```json
{
  "data": [
    {
      "id": "<string>",
      "version": 123,
      "name": "<string>",
      "dtCreated": "2023-11-07T05:31:56Z",
      "dtLastModified": "2023-11-07T05:31:56Z",
      "createdBy": "<string>",
      "lastModifiedBy": "<string>"
    }
  ],
  "nextToken": "<string>"
}
```

#### Error Responses

```json
{
  "message": "<string>"
}
```

### Authorizations

**Authorization**  
Type: string  
Location: header  
Required: Yes

m3ter supports machine to machine authentication using the `clientCredentials` OAuth2 flow. The `authorizationCode` flow controls access for human users via the m3ter Console application.

### Path Parameters

- **orgId**: string (required)  
  UUID of the organization

### Query Parameters

- **pageSize**: integer<int32>  
  Number of MeterGroups to retrieve per page (Required range: `1 <= x <= 100`)
- **nextToken**: string  
  nextToken for multi page retrievals
- **ids**: string[]  
  list of ids to retrieve

### Response

**200**  
Content-Type: application/json  
ListMeterGroups 200 response

- **data**: object[]  
  List of Meter Group objects  
- **nextToken**: string  
  token for fetching the next set of results.