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# Validate API Key

GET http://127.0.0.1:58931/api/system/auth-check

Validate the supplied API Key through a minimal authenticated, read-only backend request. No business data is returned.

Reference: https://docs.flashid.app/api-reference/system/validate-api-key

## Authentication

- `X-API-Key` header (required) — API Key generated in the FlashID app.

## Response

### 200

Key valid

- `success` (boolean, required)
- `code` (integer, required)
- `data` (object, optional)
  - `valid` (boolean, optional)

## Examples

**Response**

```json
{
  "success": true,
  "code": 0,
  "data": {
    "valid": true
  }
}
```

**SDK Code**

```python
import requests

url = "http://127.0.0.1:58931/api/system/auth-check"

headers = {"X-API-Key": "<apiKey>"}

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

print(response.json())
```

```javascript
const url = 'http://127.0.0.1:58931/api/system/auth-check';
const options = {method: 'GET', headers: {'X-API-Key': '<apiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

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

func main() {

	url := "http://127.0.0.1:58931/api/system/auth-check"

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

	req.Header.Add("X-API-Key", "<apiKey>")

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

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

	fmt.Println(res)
	fmt.Println(string(body))

}
```

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

url = URI("http://127.0.0.1:58931/api/system/auth-check")

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

request = Net::HTTP::Get.new(url)
request["X-API-Key"] = '<apiKey>'

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

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("http://127.0.0.1:58931/api/system/auth-check")
  .header("X-API-Key", "<apiKey>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'http://127.0.0.1:58931/api/system/auth-check', [
  'headers' => [
    'X-API-Key' => '<apiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("http://127.0.0.1:58931/api/system/auth-check");
var request = new RestRequest(Method.GET);
request.AddHeader("X-API-Key", "<apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["X-API-Key": "<apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "http://127.0.0.1:58931/api/system/auth-check")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```