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# Get Overlays

GET /v1/parameter/overlay

Return overlays, optionally filtered by location and isolation type.

Reference: https://docs.nvidia.com/switch-infrastructure/config-manager/switch-infrastructure/config-manager/services/temporal/temporal-api/parameters/get-overlays-v-1-parameter-overlay-get

## OpenAPI Specification

```yaml
openapi: 3.1.0
info:
  title: temporal-api
  version: 1.0.0
paths:
  /v1/parameter/overlay:
    get:
      operationId: get_overlays_v1_parameter_overlay_get
      summary: Get Overlays
      description: Return overlays, optionally filtered by location and isolation type.
      tags:
        - parameters
      parameters:
        - name: location
          in: query
          description: Limit to overlays at this location
          required: false
          schema:
            type:
              - string
              - 'null'
        - name: isolation_type
          in: query
          description: Limit to overlays with this isolation type
          required: false
          schema:
            type:
              - string
              - 'null'
        - name: Authorization
          in: header
          description: >-
            Bearer JWT used by CLI and machine clients on svc-* endpoints.
            Authentication is required by default, but deployments may disable
            it with [auth] required = false. Browser OIDC sessions, mTLS, SPIFFE
            identities, and trusted gateway identity headers may also satisfy
            authentication outside this generated client flow.
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Overlay'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    Overlay:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
      required:
        - id
        - name
      description: Overlay data for dropdown population.
      title: Overlay
    ValidationErrorCtx:
      type: object
      properties: {}
      title: ValidationErrorCtx
    ValidationErrorLocItems:
      oneOf:
        - type: string
        - type: integer
      title: ValidationErrorLocItems
    ValidationError:
      type: object
      properties:
        ctx:
          $ref: '#/components/schemas/ValidationErrorCtx'
        input:
          description: Any type
        loc:
          type: array
          items:
            $ref: '#/components/schemas/ValidationErrorLocItems'
        msg:
          type: string
        type:
          type: string
      required:
        - loc
        - msg
        - type
      title: ValidationError
    HTTPValidationError:
      type: object
      properties:
        detail:
          type: array
          items:
            $ref: '#/components/schemas/ValidationError'
      title: HTTPValidationError
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        Bearer JWT used by CLI and machine clients on svc-* endpoints.
        Authentication is required by default, but deployments may disable it
        with [auth] required = false. Browser OIDC sessions, mTLS, SPIFFE
        identities, and trusted gateway identity headers may also satisfy
        authentication outside this generated client flow.

```

## Examples



**Request**

```json
{}
```

**Response**

```json
[
  {
    "id": "overlay-1234",
    "name": "North America Temperature Overlay"
  },
  {
    "id": "overlay-5678",
    "name": "Europe Precipitation Overlay"
  }
]
```

**SDK Code**

```python
import requests

url = "https://api.example.com/v1/parameter/overlay"

payload = {}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.example.com/v1/parameter/overlay';
const options = {
  method: 'GET',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{}'
};

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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/v1/parameter/overlay"

	payload := strings.NewReader("{}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	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("https://api.example.com/v1/parameter/overlay")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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("https://api.example.com/v1/parameter/overlay")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.example.com/v1/parameter/overlay', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.example.com/v1/parameter/overlay");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.example.com/v1/parameter/overlay")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

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()
```