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# Update a transformer in a database

PUT https://meta.feedonomics.com/api.php/dbs/{db_id}/transformers/{transformer_id}
Content-Type: application/json

Reference: https://docs.feedonomics.com/developer/api-reference/rest/platform-api/transformers/update-a-transformer-in-a-database

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `db_id` (integer, required) — ID of the database
- `transformer_id` (integer, required) — ID of the transformer

### Headers

- `x-api-key` (string, required)

### Body (application/json)

This endpoint expects an object.

- `enabled` (boolean, optional) — Whether the transformer is executed
- `field_name` (string, optional) — The name of the field to transform
- `selector` (string, optional) — The transformer selector ('if')
- `transformer` (string, optional) — The transformer output ('then')
- `export_id` (list of integer, optional) — The export ID to apply the transformer to (empty if all)

## Response

### 200

Successful operation

- `id` (string, optional)
- `db_id` (string, optional)
- `export_id` (string, optional)
- `field_name` (string, optional)
- `sort_order` (string, optional)
- `selector` (string, optional)
- `transformer` (string, optional)
- `exports` (string, optional)
- `enabled` (string, optional)
- `created_at` (string, optional)

## Examples

**Request**

```json
{
  "enabled": true,
  "field_name": "availability",
  "selector": "true",
  "transformer": "nohtml( [availability] )",
  "export_id": [
    0
  ]
}
```

**Response**

```json
{
  "id": "40",
  "db_id": "136",
  "export_id": "0",
  "field_name": "availability",
  "sort_order": "0",
  "selector": "true",
  "transformer": "nohtml( [availability] )",
  "exports": "json data",
  "enabled": "1",
  "created_at": "2021-11-15 19:28:05"
}
```

**SDK Code**

```python Transformers_updateATransformerInADatabase_example
import requests

url = "https://meta.feedonomics.com/api.php/dbs/1/transformers/1"

payload = {
    "enabled": True,
    "field_name": "availability",
    "selector": "true",
    "transformer": "nohtml( [availability] )",
    "export_id": [0]
}
headers = {
    "x-api-key": "x-api-key",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Transformers_updateATransformerInADatabase_example
const url = 'https://meta.feedonomics.com/api.php/dbs/1/transformers/1';
const options = {
  method: 'PUT',
  headers: {
    'x-api-key': 'x-api-key',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: '{"enabled":true,"field_name":"availability","selector":"true","transformer":"nohtml( [availability] )","export_id":[0]}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go Transformers_updateATransformerInADatabase_example
package main

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

func main() {

	url := "https://meta.feedonomics.com/api.php/dbs/1/transformers/1"

	payload := strings.NewReader("{\n  \"enabled\": true,\n  \"field_name\": \"availability\",\n  \"selector\": \"true\",\n  \"transformer\": \"nohtml( [availability] )\",\n  \"export_id\": [\n    0\n  ]\n}")

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

	req.Header.Add("x-api-key", "x-api-key")
	req.Header.Add("Authorization", "Bearer <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 Transformers_updateATransformerInADatabase_example
require 'uri'
require 'net/http'

url = URI("https://meta.feedonomics.com/api.php/dbs/1/transformers/1")

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

request = Net::HTTP::Put.new(url)
request["x-api-key"] = 'x-api-key'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"enabled\": true,\n  \"field_name\": \"availability\",\n  \"selector\": \"true\",\n  \"transformer\": \"nohtml( [availability] )\",\n  \"export_id\": [\n    0\n  ]\n}"

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

```java Transformers_updateATransformerInADatabase_example
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.put("https://meta.feedonomics.com/api.php/dbs/1/transformers/1")
  .header("x-api-key", "x-api-key")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"enabled\": true,\n  \"field_name\": \"availability\",\n  \"selector\": \"true\",\n  \"transformer\": \"nohtml( [availability] )\",\n  \"export_id\": [\n    0\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('PUT', 'https://meta.feedonomics.com/api.php/dbs/1/transformers/1', [
  'body' => '{
  "enabled": true,
  "field_name": "availability",
  "selector": "true",
  "transformer": "nohtml( [availability] )",
  "export_id": [
    0
  ]
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
    'x-api-key' => 'x-api-key',
  ],
]);

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

```csharp Transformers_updateATransformerInADatabase_example
using RestSharp;

var client = new RestClient("https://meta.feedonomics.com/api.php/dbs/1/transformers/1");
var request = new RestRequest(Method.PUT);
request.AddHeader("x-api-key", "x-api-key");
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"enabled\": true,\n  \"field_name\": \"availability\",\n  \"selector\": \"true\",\n  \"transformer\": \"nohtml( [availability] )\",\n  \"export_id\": [\n    0\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Transformers_updateATransformerInADatabase_example
import Foundation

let headers = [
  "x-api-key": "x-api-key",
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "enabled": true,
  "field_name": "availability",
  "selector": "true",
  "transformer": "nohtml( [availability] )",
  "export_id": [0]
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://meta.feedonomics.com/api.php/dbs/1/transformers/1")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PUT"
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()
```