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# Simulate grok pattern

POST https://api.mezmo.com/v3/pipeline/grok-pattern/simulate
Content-Type: application/json

Simulate data flowing through a grok pattern

Reference: https://mezmo.ferndocs.com/api-reference/pipeline/sampling/simulate-grok-pattern

## Authentication

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

## Request

### Body (application/json)

This endpoint expects an object.

- `pattern` (string, required)
- `values` (list of string, required)

## Response

### 200

Default Response

## Examples

**Request**

```json
{
  "pattern": "%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}",
  "values": [
    "ERROR payment-service - Transaction failed due to timeout",
    "INFO auth-gateway - User login successful",
    "WARN order-processor - Order processing delayed by 200ms"
  ]
}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests

url = "https://api.mezmo.com/v3/pipeline/grok-pattern/simulate"

payload = {
    "pattern": "%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}",
    "values": ["ERROR payment-service - Transaction failed due to timeout", "INFO auth-gateway - User login successful", "WARN order-processor - Order processing delayed by 200ms"]
}
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/grok-pattern/simulate';
const options = {
  method: 'POST',
  headers: {
    Authorization: 'Token <pipeline-service-key>',
    'Content-Type': 'application/json'
  },
  body: '{"pattern":"%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}","values":["ERROR payment-service - Transaction failed due to timeout","INFO auth-gateway - User login successful","WARN order-processor - Order processing delayed by 200ms"]}'
};

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/grok-pattern/simulate"

	payload := strings.NewReader("{\n  \"pattern\": \"%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}\",\n  \"values\": [\n    \"ERROR payment-service - Transaction failed due to timeout\",\n    \"INFO auth-gateway - User login successful\",\n    \"WARN order-processor - Order processing delayed by 200ms\"\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/grok-pattern/simulate")

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  \"pattern\": \"%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}\",\n  \"values\": [\n    \"ERROR payment-service - Transaction failed due to timeout\",\n    \"INFO auth-gateway - User login successful\",\n    \"WARN order-processor - Order processing delayed by 200ms\"\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/grok-pattern/simulate")
  .header("Authorization", "Token <pipeline-service-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"pattern\": \"%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}\",\n  \"values\": [\n    \"ERROR payment-service - Transaction failed due to timeout\",\n    \"INFO auth-gateway - User login successful\",\n    \"WARN order-processor - Order processing delayed by 200ms\"\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.mezmo.com/v3/pipeline/grok-pattern/simulate', [
  'body' => '{
  "pattern": "%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}",
  "values": [
    "ERROR payment-service - Transaction failed due to timeout",
    "INFO auth-gateway - User login successful",
    "WARN order-processor - Order processing delayed by 200ms"
  ]
}',
  '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/grok-pattern/simulate");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Token <pipeline-service-key>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"pattern\": \"%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}\",\n  \"values\": [\n    \"ERROR payment-service - Transaction failed due to timeout\",\n    \"INFO auth-gateway - User login successful\",\n    \"WARN order-processor - Order processing delayed by 200ms\"\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 = [
  "pattern": "%{LOGLEVEL:level} %{DATA:service} - %{GREEDYDATA:message}",
  "values": ["ERROR payment-service - Transaction failed due to timeout", "INFO auth-gateway - User login successful", "WARN order-processor - Order processing delayed by 200ms"]
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.mezmo.com/v3/pipeline/grok-pattern/simulate")! 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()
```