## Documentation Index

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

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

### Endpoint

/2026-01/retail-media/auction-line-items/{lineItemId}

### cURL Example

```bash
curl --request GET \
  --url https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId} \
  --header 'Authorization: Bearer <token>'
```

### Python Example

```python
import requests

url = "https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}"

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

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

print(response.text)
```

### JavaScript Example

```javascript
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));
```

### PHP Example

```php
<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

### Go Example

```go
package main

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

func main() {

url := "https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}"

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

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

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

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

fmt.Println(string(body))
}
```

### Unirest Example

```java
HttpResponse<String> response = Unirest.get("https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}")
  .header("Authorization", "Bearer <token>")
  .asString();
```

### Ruby Example

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

url = URI("https://api.criteo.com/2026-01/retail-media/auction-line-items/{lineItemId}")

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

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

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

### Response

#### Success Response (200)

```json
{
  "data": {
    "attributes": {
      "budgetRemaining": 123,
      "campaignId": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "name": "<string>",
      "startDate": "2023-11-07T05:31:56Z",
      "targetRetailerId": "<string>",
      "updatedAt": "2023-11-07T05:31:56Z",
      "budget": 123,
      "budgetSpent": 123,
      "dailyPacing": 123,
      "endDate": "2023-11-07T05:31:56Z",
      "flightSchedule": {
        "legs": [
          {
            "endTime": "<string>",
            "startTime": "<string>"
          }
        ]
      },
      "isAutoDailyPacing": true,
      "maxBid": 123,
      "monthlyPacing": 123,
      "targetBid": 123
    },
    "id": "<string>",
    "type": "<string>"
  },
  "errors": [
    {
      "code": "<string>",
      "detail": "<string>",
      "instance": "<string>",
      "source": {},
      "stackTrace": "<string>",
      "title": "<string>",
      "traceId": "<string>"
    }
  ],
  "warnings": [
    {
      "code": "<string>",
      "detail": "<string>",
      "instance": "<string>",
      "source": {},
      "stackTrace": "<string>",
      "title": "<string>",
      "traceId": "<string>"
    }
  ]
}
```

### Authorizations

#### Authorization
- **Type**: string
- **Location**: header
- **Required**: The access token received from the authorization server in the OAuth 2.0 flow.

#### Path Parameters

- **lineItemId**: string (required) - The id of the line item.

### Response Format

- 200 - application/json
- Success: A top-level object that encapsulates a Criteo API response for a single entity.