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# Run materialization for a data model element

POST https://api.sigmacomputing.com/v2/dataModels/{dataModelId}:materialize
Content-Type: application/json

This endpoint runs a scheduled materialization for an element in a data model. Materialization processes the data of the specified element, allowing the data to be stored or cached for optimized access and performance.

For more details on materialization, see [Materialization](https://help.sigmacomputing.com/docs/materialization).

### Usage notes

* The materialization schedule for the specified element must be created beforehand.
* Retrieve the **sheetId** by calling the [/v2/dataModels/\{dataModelId}/materializationSchedules](https://help.sigmacomputing.com/reference/list-data-model-materialization-schedules) endpoint.
* Retrieve the **dataModelId** by calling the [/v2/dataModels](https://help.sigmacomputing.com/reference/list-data-models) endpoint.

### Usage scenarios

* **Performance optimization:** Use this endpoint to improve response times for frequently accessed data model elements.
* **Data refresh:** Allows users to manually (programmatically) refresh the data of specific data model elements to ensure that the latest data is available for analysis and reporting.

### Best practices

* Prioritize materialization for elements that are heavily used or form critical components of business reports.
* Monitor the performance impacts of materialization and adjust strategies as necessary to optimize resource usage and response times.

Reference: https://help.sigmacomputing.com/reference/materialize-data-model-element

## Authentication

- OAuth2 — send the obtained token as `Authorization: Bearer <token>`

## Servers

- `https://api.sigmacomputing.com` (Server for GCP (US) hosted organizations, default)
- `https://api.sa.gcp.sigmacomputing.com` (Server for GCP (KSA) hosted organizations)
- `https://aws-api.sigmacomputing.com` (Server for AWS US (West) hosted organizations)
- `https://api.us-a.aws.sigmacomputing.com` (Server for AWS US (East) hosted organizations)
- `https://api.ca.aws.sigmacomputing.com` (Server for AWS Canada hosted organizations)
- `https://api.eu.aws.sigmacomputing.com` (Server for AWS Europe hosted organizations)
- `https://api.au.aws.sigmacomputing.com` (Server for AWS Australia and APAC hosted organizations)
- `https://api.uk.aws.sigmacomputing.com` (Server for AWS UK hosted organizations)
- `https://api.us.azure.sigmacomputing.com` (Server for Azure US hosted organizations)
- `https://api.eu.azure.sigmacomputing.com` (Server for Azure Europe hosted organizations)
- `https://api.ca.azure.sigmacomputing.com` (Server for Azure Canada hosted organizations)
- `https://api.uk.azure.sigmacomputing.com` (Server for Azure United Kingdom hosted organizations)
- `https://api.au.azure.sigmacomputing.com` (Server for Azure Australia hosted organizations)

## Request

### Path parameters

- `dataModelId` (string, required)

### Body (application/json)

- `sheetId` (string, required) — Identifier for the materialization schedule of this element.

## Response

### 200

The response body.

- `materializationId` (string, required)

## Examples

**Request**

```json
{
  "sheetId": "string"
}
```

**Response**

```json
{
  "materializationId": "string"
}
```

**SDK Code**

```python
import requests

url = "https://api.sigmacomputing.com/v2/dataModels/dataModelId:materialize"

payload = { "sheetId": "string" }
headers = {
    "Authorization": "<token>.",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.sigmacomputing.com/v2/dataModels/dataModelId:materialize';
const options = {
  method: 'POST',
  headers: {Authorization: '<token>.', 'Content-Type': 'application/json'},
  body: '{"sheetId":"string"}'
};

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.sigmacomputing.com/v2/dataModels/dataModelId:materialize"

	payload := strings.NewReader("{\n  \"sheetId\": \"string\"\n}")

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

	req.Header.Add("Authorization", "<token>.")
	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.sigmacomputing.com/v2/dataModels/dataModelId:materialize")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<token>.'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"sheetId\": \"string\"\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.sigmacomputing.com/v2/dataModels/dataModelId:materialize")
  .header("Authorization", "<token>.")
  .header("Content-Type", "application/json")
  .body("{\n  \"sheetId\": \"string\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.sigmacomputing.com/v2/dataModels/dataModelId:materialize', [
  'body' => '{
  "sheetId": "string"
}',
  'headers' => [
    'Authorization' => '<token>.',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.sigmacomputing.com/v2/dataModels/dataModelId:materialize");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "<token>.");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"sheetId\": \"string\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "<token>.",
  "Content-Type": "application/json"
]
let parameters = ["sheetId": "string"] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.sigmacomputing.com/v2/dataModels/dataModelId:materialize")! 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()
```