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> For a complete documentation index, see https://mezmo.ferndocs.com/api-reference/pipeline/sampling/create-data-sample/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mezmo.ferndocs.com/_mcp/server.

# Create data sample

POST https://api.mezmo.com/v3/pipeline/{container_id}/source/{source_id}/sample
Content-Type: application/json

Create sample data for use in simulation

Reference: https://mezmo.ferndocs.com/api-reference/pipeline/sampling/create-data-sample

## Authentication

- `Authorization` header (required) (prefixed with ` Token  `) — Header authentication of the form `Token <token>`

## Request

### Path parameters

- `container_id` (string, required) — The ID of the container entity, either a Pipeline or Processor Group
- `source_id` (string, required) — The ID of the source to retrieve samples for

### Body (application/json)

This endpoint expects an object.

- `data` (list of any, required)
- `title` (string, optional, nullable)
- `version` (enum, optional, default: v2)
  - Allowed values: `v2`
- `container_type` (enum, optional, default: pipeline) — Discriminator to identify the type of container referenced by the container_id
  - Allowed values: `pipeline`, `transform_group`

## Response

### 200

Default Response

## Examples

**Request**

```json
{
  "data": [
    "2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io",
    "2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345",
    "2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout",
    "2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io"
  ]
}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests

url = "https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample"

payload = { "data": ["2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io", "2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345", "2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout", "2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io"] }
headers = {
    "Authorization": "Token <pipeline-service-key>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample';
const options = {
  method: 'POST',
  headers: {
    Authorization: 'Token <pipeline-service-key>',
    'Content-Type': 'application/json'
  },
  body: '{"data":["2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io","2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345","2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout","2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io"]}'
};

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 := "https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample"

	payload := strings.NewReader("{\n  \"data\": [\n    \"2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io\",\n    \"2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345\",\n    \"2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout\",\n    \"2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io\"\n  ]\n}")

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

	req.Header.Add("Authorization", "Token <pipeline-service-key>")
	req.Header.Add("Content-Type", "application/json")

	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.mezmo.com/v3/pipeline/container_id/source/source_id/sample")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Token <pipeline-service-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": [\n    \"2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io\",\n    \"2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345\",\n    \"2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout\",\n    \"2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io\"\n  ]\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("https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample")
  .header("Authorization", "Token <pipeline-service-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": [\n    \"2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io\",\n    \"2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345\",\n    \"2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout\",\n    \"2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io\"\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample', [
  'body' => '{
  "data": [
    "2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io",
    "2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345",
    "2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout",
    "2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io"
  ]
}',
  'headers' => [
    'Authorization' => 'Token <pipeline-service-key>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Token <pipeline-service-key>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"data\": [\n    \"2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io\",\n    \"2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345\",\n    \"2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout\",\n    \"2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io\"\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Token <pipeline-service-key>",
  "Content-Type": "application/json"
]
let parameters = ["data": ["2024-06-01T12:00:00Z payment-service INFO Request processed successfully from 192.168.1.10 to logs.acme-corp.io", "2024-06-01T12:00:01Z auth-gateway WARN Authentication token expired for userID 12345", "2024-06-01T12:00:02Z order-processor ERROR Failed to process orderID 98765 due to timeout", "2024-06-01T12:00:03Z payment-service INFO request_latency_ms=120 error_rate_5xx=0.01 host=telemetry.acme-corp.io"]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.mezmo.com/v3/pipeline/container_id/source/source_id/sample")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
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()
```