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# Retrieve a knowledge store item

GET https://api.twelvelabs.io/v1.3/knowledge-stores/{knowledge_store_id}/items/{item_id}

This method retrieves the details of a specific knowledge store item.


Reference: https://docs.twelvelabs.io/api-reference/knowledge-store-items/retrieve

## Authentication

- `x-api-key` header (required) — Your API key. You can find your API key on the API Keys page.

## Request

### Path parameters

- `knowledge_store_id` (string, required) — The unique identifier of the knowledge store.
- `item_id` (string, required) — The unique identifier of the knowledge store item.

## Response

### 200

The knowledge store item has been successfully retrieved.

- `asset_type` (enum, required) — The type of item.
  - Allowed values: `video`, `image`
- `_id` (string, optional) — The unique identifier of the knowledge store item.
- `asset_id` (string, optional) — The unique identifier of the source asset.
- `status` (enum, optional) — The processing status of the item. For the meaning of each value, see the [Item statuses](/v1.3/api-reference/knowledge-store-items/the-knowledge-store-item-object#item-statuses) section on **The knowledge store item object** page.
  - Allowed values: `queued`, `pending`, `processing`, `ready`, `failed`
- `system_metadata` (KnowledgeStoreItemSystemMetadata, optional) — System-generated media metadata for the source asset. Its `asset_type` field always matches the item's top-level `asset_type` field.
- `metadata` (map from string to KnowledgeStoreMetadataValue, optional) — Custom metadata for the item. Keys are strings; each value is a string, a number, a boolean, or an array of strings.
- `created_at` (string, optional) — The date and time when the item was created, in the RFC 3339 format.
- `updated_at` (string, optional) — The date and time when the item was last updated, in the RFC 3339 format.

## Errors

### 400 Bad Request Error

The request has failed.

- `code` (string, optional) — A string representing the code associated with the error. See the [Error codes](/v1.3/api-reference/error-codes) page for details.
- `message` (string, optional) — A human-readable string describing the error, intended to be suitable for display in a user interface.

## Types

### KnowledgeStoreItemSystemMetadata

System-generated media metadata for the source asset. Its `asset_type` field always matches the item's top-level `asset_type` field.

- `asset_type`: `video` (video)
  - `codec_name` (string, optional) — The codec used to encode the video.
  - `duration` (double, optional) — The duration of the video in seconds.
  - `filename` (string, optional) — The original filename of the video.
  - `fps` (double, optional) — The frame rate of the video in frames per second.
  - `height` (integer, optional) — The height of the video in pixels.
  - `size` (integer, optional) — The file size of the video in bytes.
  - `width` (integer, optional) — The width of the video in pixels.
- `asset_type`: `image` (image)
  - `codec_name` (string, optional) — The codec used to encode the image.
  - `filename` (string, optional) — The original filename of the image.
  - `height` (integer, optional) — The height of the image in pixels.
  - `size` (integer, optional) — The file size of the image in bytes.
  - `width` (integer, optional) — The width of the image in pixels.

### KnowledgeStoreMetadataValue

A single custom-metadata value: a string, a number, a boolean, or an array of strings. The value keeps the JSON type sent; a nested object, an array containing anything other than strings, and a null value are rejected. An integer must fit in 53 bits (-9007199254740991 to 9007199254740991). A wider integer, or an identifier that must be preserved verbatim, must be sent as a string.

## Examples

**Response**

```json
{
  "asset_type": "video",
  "_id": "ksi_069e9870-3c4d-7abc-9012-3456789abcde",
  "asset_id": "6298d673f1090f1100476d4c",
  "status": "ready",
  "system_metadata": {
    "asset_type": "video",
    "codec_name": "h264",
    "duration": 531.998133,
    "filename": "01.mp4",
    "fps": 29.97,
    "height": 1080,
    "size": 65749715,
    "width": 1920
  },
  "metadata": {},
  "created_at": "2024-01-15T09:30:00Z",
  "updated_at": "2024-01-15T09:30:00Z"
}
```

**SDK Code**

```python
import requests

url = "https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde"

headers = {"x-api-key": "<apiKey>"}

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

print(response.json())
```

```javascript
const url = 'https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde';
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 := "https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde"

	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("https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde")

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

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("https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde")
  .header("x-api-key", "<apiKey>")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde', [
  'headers' => [
    'x-api-key' => '<apiKey>',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde");
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: "https://api.twelvelabs.io/v1.3/knowledge-stores/ks_069e9869-1ea3-7481-8000-dae72bf6be6e/items/ksi_069e9870-3c4d-7abc-9012-3456789abcde")! 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()
```