> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://www.comet.com/docs/opik/reference/rest-api/datasets/create-dataset-items-from-csv/llms.txt.

# Create dataset items from CSV file

POST http://localhost:5173/api/v1/private/datasets/items/from-csv
Content-Type: multipart/form-data

Create dataset items from uploaded CSV file. CSV should have headers in the first row. Processing happens asynchronously in batches.

Reference: https://www.comet.com/docs/opik/reference/rest-api/datasets/create-dataset-items-from-csv

## Servers

- `http://localhost:5173/api` (Local server, default)
- `https://www.comet.com/opik/api` (Opik Cloud)

## Request

### Body (multipart/form-data)

This endpoint expects a multipart form.

- `file` (V1PrivateDatasetsItemsFromCsvPostRequestBodyContentMultipartFormDataSchemaFile, required)
- `dataset_id` (string, required)

## Response

### 202

Accepted - CSV processing started

## Errors

### 400 Bad Request Error

Bad Request

- `code` (integer, optional)
- `message` (string, optional)
- `details` (string, optional)

## Examples

**Request**

```json
{
  "dataset_id": "string",
  "file": {}
}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests

url = "http://localhost:5173/api/v1/private/datasets/items/from-csv"

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"dataset_id\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\n{}\r\n-----011000010111000001101001--\r\n"
headers = {"Content-Type": "multipart/form-data; boundary=---011000010111000001101001"}

response = requests.post(url, data=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'http://localhost:5173/api/v1/private/datasets/items/from-csv';
const form = new FormData();
form.append('dataset_id', 'string');
form.append('file', '{}');

const options = {method: 'POST'};

options.body = form;

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 := "http://localhost:5173/api/v1/private/datasets/items/from-csv"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"dataset_id\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\n{}\r\n-----011000010111000001101001--\r\n")

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

	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("http://localhost:5173/api/v1/private/datasets/items/from-csv")

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

request = Net::HTTP::Post.new(url)
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"dataset_id\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\n{}\r\n-----011000010111000001101001--\r\n"

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.post("http://localhost:5173/api/v1/private/datasets/items/from-csv")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"dataset_id\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\n{}\r\n-----011000010111000001101001--\r\n")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'http://localhost:5173/api/v1/private/datasets/items/from-csv', [
  'multipart' => [
    [
        'name' => 'dataset_id',
        'contents' => 'string'
    ],
    [
        'name' => 'file',
        'contents' => '{}'
    ]
  ]
]);

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

```csharp
using RestSharp;

var client = new RestClient("http://localhost:5173/api/v1/private/datasets/items/from-csv");
var request = new RestRequest(Method.POST);
request.AddParameter("undefined", "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"dataset_id\"\r\n\r\nstring\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"\r\n\r\n{}\r\n-----011000010111000001101001--\r\n", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation
let parameters = [
  [
    "name": "dataset_id",
    "value": "string"
  ],
  [
    "name": "file",
    "value": "{}"
  ]
]

let boundary = "---011000010111000001101001"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error as Any)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "http://localhost:5173/api/v1/private/datasets/items/from-csv")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
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()
```

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