> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# Get call flow

GET https://%7BYour_Space_Name%7D.signalwire.com/api/fabric/resources/call_flows/{id}

Retrieves one Call Flow from your SignalWire project for viewing or editing. Use [List call flows](/docs/apis/rest/call-flows/list-call-flows) to find flows, or [Get SWML Script](/docs/apis/rest/swml-scripts/get-swml-script) for a directly authored SWML handler.

#### Permissions

The API token used to authenticate must have the following scope(s) enabled to make a successful request: _Voice_, _Messaging_, _Fax_, or _Video_.

[Learn more about API scopes](/docs/platform/your-signalwire-api-space).

Reference: https://signalwire.com/docs/apis/rest/call-flows/get-call-flow

## Authentication

- `Authorization` header (basic auth, required) — SignalWire Basic Authentication using Project ID and API Token. The client sends HTTP requests with the Authorization header containing the word Basic followed by a space and a base64-encoded string of project_id:token. The project ID will be used as the username and the API token as the password. Example: ``` Authorization: Basic base64(project_id:token) ```

## Request

### Path parameters

- `id` (string, required) — Unique ID of a Call Flow.

## Response

### 200

The request has succeeded.

- `id` (string, required) — Unique ID of the Call Flow.
- `project_id` (string, required) — Unique ID of the Project.
- `display_name` (string, required) — Display name of the Call Flow Fabric Resource
- `type` (enum, required) — Type of the Fabric Resource
  - Allowed values: `call_flow`
- `created_at` (datetime, required) — Date and time when the resource was created.
- `updated_at` (datetime, required) — Date and time when the resource was updated.
- `call_flow` (CallFlow, required) — Call Flow data.

## Errors

### 401 Unauthorized Error

Access is unauthorized.

- `error` (enum, required)
  - Allowed values: `Unauthorized`

### 404 Not Found Error

The server cannot find the requested resource.

- `error` (enum, required)
  - Allowed values: `Not Found`

### 500 Internal Server Error

An internal server error occurred.

- `error` (enum, required)
  - Allowed values: `Internal Server Error`

## Types

### CallFlow

- `id` (string, required) — Unique ID of a Call Flow.
- `title` (string, required) — The name of the Call Flow
- `flow_data` (CallFlowFlowData, optional) — Call Flow Builder state, stored as an opaque JSON object. Produced and consumed by the SignalWire Call Flow Builder UI; not used by SWML execution.
- `relayml` (CallFlowRelayml, optional) — The calling SWML document this Call Flow executes. Uses [calling SWML methods](/docs/swml/reference/calling).
- `document_version` (integer, optional) — The current revision of the call flow. Every update must increase this number.

### CallFlowFlowData

Call Flow Builder state, stored as an opaque JSON object. Produced and consumed by the SignalWire Call Flow Builder UI; not used by SWML execution.

### CallFlowRelayml

The calling SWML document this Call Flow executes. Uses [calling SWML methods](/docs/swml/reference/calling).

## Examples

**Response**

```json
{
  "id": "993ed018-9e79-4e50-b97b-984bd5534095",
  "project_id": "1313fe58-5e14-4c11-bbe7-6fdfa11fe780",
  "display_name": "Welcome Call Flow",
  "type": "call_flow",
  "created_at": "2024-05-06T12:20:00Z",
  "updated_at": "2024-05-06T12:25:00Z",
  "call_flow": {
    "id": "993ed018-9e79-4e50-b97b-984bd5534095",
    "title": "Welcome Call Flow",
    "flow_data": {},
    "relayml": {
      "sections": {
        "main": [
          {
            "play": {
              "url": "https://cdn.signalwire.com/swml/audio.mp3"
            }
          }
        ]
      },
      "version": "1.0.0"
    },
    "document_version": 1
  }
}
```

**SDK Code**

```python Call flow
import requests

url = "https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id"

response = requests.get(url, auth=("<project_id>", "<api_token>"))

print(response.json())
```

```javascript Call flow
const url = 'https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id';
const credentials = btoa("<project_id>:<api_token>");

const options = {method: 'GET', headers: {Authorization: `Basic ${credentials}`}};

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

```go Call flow
package main

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

func main() {

	url := "https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id"

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

	req.SetBasicAuth("<project_id>", "<api_token>")

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

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

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

}
```

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

url = URI("https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id")

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

request = Net::HTTP::Get.new(url)
request.basic_auth("<project_id>", "<api_token>")

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

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

HttpResponse<String> response = Unirest.get("https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id")
  .basicAuth("<project_id>", "<api_token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id', [
  'headers' => [
  ],
    'auth' => ['<project_id>', '<api_token>'],
]);

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

```csharp Call flow
using RestSharp;
using RestSharp.Authenticators;

var client = new RestClient("https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id");
client.Authenticator = new HttpBasicAuthenticator("<project_id>", "<api_token>");
var request = new RestRequest(Method.GET);

IRestResponse response = client.Execute(request);
```

```swift Call flow
import Foundation

let credentials = Data("<project_id>:<api_token>".utf8).base64EncodedString()

let headers = ["Authorization": "Basic \(credentials)"]

let request = NSMutableURLRequest(url: NSURL(string: "https://{your_space_name}.signalwire.com/api/fabric/resources/call_flows/id")! 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()
```