## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt)

Use this file to discover all available pages before exploring further.

### Update a Knowledge Chunk

#### PATCH

/v2.0/knowledgestores/{knowledgeStoreId}/sources/{sourceId}/chunks/{chunkId}

#### cURL

```
curl --request PATCH \
  --url https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/sources/{sourceId}/chunks/{chunkId} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "order": 1,
  "text": "This is a paragraph from an article",
  "data": {}
}
'
```

#### Python

```python
import requests

url = "https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/sources/{sourceId}/chunks/{chunkId}"

payload = {
    "order": 1,
    "text": "This is a paragraph from an article",
    "data": {}
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)
```

#### JavaScript

```javascript
const options = {
  method: 'PATCH',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({order: 1, text: 'This is a paragraph from an article', data: {}})
};

fetch('https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/sources/{sourceId}/chunks/{chunkId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

#### PHP

```php
$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api-trial.cognigy.ai/new/v2.0/knowledgestores/{knowledgeStoreId}/sources/{sourceId}/chunks/{chunkId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'order' => 1,
    'text' => 'This is a paragraph from an article',
    'data' => [

]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}
```

### Error Responses

- **400 Bad Request**

```json
{
  "type": "Bad Request",
  "title": "Bad Request Error",
  "status": 400,
  "detail": "Validation failed. Missing payload.",
  "instance": "/v2.0/flows/5ce7c2d833ea1e04d7e6c432",
  "code": 1000,
  "traceId": "api--f84324f4-98eb-4f02-abdd-375a2e6c3c1f",
  "details": {}
}
```

- **401 Unauthorized**

```json
{
  "type": "Unauthorized",
  "title": "Unauthorized Error",
  "status": 401,
  "detail": "<string>",
  "instance": "/v2.0/flows/5ce7c2d833ea1e04d7e6c432",
  "code": 401,
  "traceId": "api--f84324f4-98eb-4f02-abdd-375a2e6c3c1f",
  "details": {}
}
```

### Authorizations

**API Key**
- **Header**: `X-API-Key`
- **Type**: `string`
- **Required**: Yes
  
### Headers

- **Accept**: `application/json`, `application/hal+json`, `application/xml`, `text/xml`, `text/csv`.

### Path Parameters

- **knowledgeStoreId**: (required, string) The Id of the KnowledgeStore.
- **sourceId**: (required, string) The Id of the KnowledgeSource.
- **chunkId**: (required, string) The Id of the KnowledgeChunk.

### Request Body

#### application/json

- **order**: (number) The name of the KnowledgeChunk.
- **text**: (string) The text that is the actual content of the chunk.
- **data**: (object) The extended data of KnowledgeChunk.