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# List study feedback

GET https://api.prolific.com/api/v1/studies/{id}/feedback/responses/

Returns the feedback participants have left about a study, including their reasons, written comments and ratings.

**Limited availability.** This endpoint is not yet available to all accounts. If you need access, please contact Prolific support.

A participant's ID is only included when they have agreed to share it; otherwise `participant_id` is `null`.

Reference: https://docs.prolific.com/api-reference/studies/list-study-feedback-responses

## Authentication

- `Authorization` header (required) (prefixed with ` Token  `) — The Prolific API uses API token to authenticate requests. You can create an API token directly from your settings. Your API token does not have an expiry date and carries full permission, so be sure to keep them secure. If your token is leaked, delete it and create a new one directly in the app. In your requests add `Authorization` header with the value `Token <your token>`.

## Request

### Path parameters

- `id` (string, required) — Study id

### Query parameters

- `has_written_feedback` (boolean, optional, default: false) — Only return feedback that includes a written comment.
- `source` (string, optional) — Comma-separated list of feedback sources to include, for example `completed,returned`.
- `category` (string, optional) — Comma-separated list of feedback categories to include, for example `technical-issue,screened-out`.
- `limit` (integer, optional) — Number of results to return per page. Defaults to 25.
- `offset` (integer, optional) — Number of results to skip.

## Response

### 200

A page of feedback for the study

- `results` (list of StudyFeedback, required)
- `meta` (StudyFeedbackListResponseMeta, required)
- `_links` (map from string to any, optional) — HAL-style links; typically includes `self` and `related`.

## Errors

### 400 Client Request Error

Error

- `status` (integer, required) — Status code as in the http standards
- `error_code` (integer, required) — Internal error code
- `title` (string, required) — Error title
- `detail` (ErrorDetailDetail, required) — Error detail
- `additional_information` (string, optional) — Optional extra information
- `traceback` (string, optional) — Optional debug information
- `interactive` (boolean, optional)

## Types

### StudyFeedback

- `participant_id` (string, required, nullable) — The participant's ID. `null` unless the participant agreed to share it, and always `null` for dismissals.
- `source` (enum, required) — Where the feedback was given.
  - Allowed values: `completed`, `returned`, `dismissed`, `unavailable`
- `category` (list of string, optional) — Reasons the participant selected, for example `technical-issue`, `screened-out`, `study-not-as-described` or `low-reward`.
- `text` (string, optional) — The participant's written comment, if any.
- `ratings` (StudyFeedbackRatings, optional)

### StudyFeedbackListResponseMeta

- `count` (integer, optional) — Total number of feedback items matching the filters.
- `facets` (StudyFeedbackFacets, optional) — Counts of each source and category, for building filters.

### ErrorDetailDetail

Error detail

### StudyFeedbackRatings

- `clarity_rating` (double, optional)
- `difficulty_rating` (double, optional)
- `fairness_rating` (double, optional)

### StudyFeedbackFacets

Counts of each source and category, for building filters.

- `source` (list of StudyFeedbackFacetValue, optional)
- `category` (list of StudyFeedbackFacetValue, optional)

### ErrorDetailDetail2

All fields with validation errors

- `any_field` (list of string, optional) — Name of the field with a validation error and as a value an array with the error descriptions

### StudyFeedbackFacetValue

- `value` (string, optional)
- `count` (integer, optional)

## Examples

**Response**

```json
{
  "results": [
    {
      "participant_id": "60a1b2c3d4e5f60718293a4b",
      "source": "completed",
      "category": [
        "technical-issue"
      ],
      "text": "The page froze when I tried to submit.",
      "ratings": {
        "clarity_rating": 4,
        "difficulty_rating": 2,
        "fairness_rating": 5
      }
    },
    {
      "participant_id": null,
      "source": "dismissed",
      "category": [
        "low-reward"
      ]
    }
  ],
  "meta": {
    "count": 2,
    "facets": {
      "source": [
        {
          "value": "completed",
          "count": 1
        },
        {
          "value": "dismissed",
          "count": 1
        }
      ],
      "category": [
        {
          "value": "technical-issue",
          "count": 1
        },
        {
          "value": "low-reward",
          "count": 1
        }
      ]
    }
  },
  "_links": {
    "self": {
      "href": "https://api.prolific.com/api/v1/studies/60aca280709ee40ec37d4885/feedback/responses/",
      "title": "Current"
    },
    "related": [
      {
        "href": "https://api.prolific.com/api/v1/studies/60aca280709ee40ec37d4885/",
        "title": "Study"
      }
    ]
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.prolific.com/api/v1/studies/id/feedback/responses/"

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

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

print(response.json())
```

```javascript
const url = 'https://api.prolific.com/api/v1/studies/id/feedback/responses/';
const options = {method: 'GET', headers: {Authorization: 'Token <token>'}};

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 := "https://api.prolific.com/api/v1/studies/id/feedback/responses/"

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

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

	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.prolific.com/api/v1/studies/id/feedback/responses/")

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

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

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.prolific.com/api/v1/studies/id/feedback/responses/")
  .header("Authorization", "Token <token>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.prolific.com/api/v1/studies/id/feedback/responses/', [
  'headers' => [
    'Authorization' => 'Token <token>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.prolific.com/api/v1/studies/id/feedback/responses/");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Token <token>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Token <token>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.prolific.com/api/v1/studies/id/feedback/responses/")! 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()
```