Update

curl --request PATCH \
  --url https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "options": {},
  "datasources": [
    {
      "type": "file",
      "options": {
        "url": "https://yourserver/your_data_feed.xml"
      }
    }
  ]
}
'

import requests

url = "https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}"

payload = {
    "options": {},
    "datasources": [
        {
            "type": "file",
            "options": { "url": "https://yourserver/your_data_feed.xml" }
        }
    ]
}
headers = {
    "Authorization": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    options: {},
    datasources: [{type: 'file', options: {url: 'https://yourserver/your_data_feed.xml'}}]
  })
};

fetch('https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'options' => [
        
    ],
    'datasources' => [
        [
                'type' => 'file',
                'options' => [
                                'url' => 'https://yourserver/your_data_feed.xml'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <api-key>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}"

	payload := strings.NewReader("{\n  \"options\": {},\n  \"datasources\": [\n    {\n      \"type\": \"file\",\n      \"options\": {\n        \"url\": \"https://yourserver/your_data_feed.xml\"\n      }\n    }\n  ]\n}")

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

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

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}")
  .header("Authorization", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"options\": {},\n  \"datasources\": [\n    {\n      \"type\": \"file\",\n      \"options\": {\n        \"url\": \"https://yourserver/your_data_feed.xml\"\n      }\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{search_zone}-api.doofinder.com/api/v2/search_engines/{hashid}/indices/{name}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"options\": {},\n  \"datasources\": [\n    {\n      \"type\": \"file\",\n      \"options\": {\n        \"url\": \"https://yourserver/your_data_feed.xml\"\n      }\n    }\n  ]\n}"

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

{
  "name": "product",
  "preset": "product",
  "options": {},
  "datasources": [
    {
      "type": "file",
      "options": {
        "url": "https://yourserver/your_data_feed.xml"
      }
    }
  ]
}

{
  "error": {
    "code": "bad_params",
    "message": "Bad parameters error",
    "details": [
      {
        "name": "language",
        "fields": [
          "language"
        ],
        "reason": "is invalid"
      }
    ]
  }
}

{
  "error": {
    "code": "not_authenticated",
    "message": "Authentication required"
  }
}

{
  "error": {
    "code": "access_denied",
    "message": "Access denied"
  }
}

{
  "error": {
    "code": "not_found",
    "message": "Not found"
  }
}

{
  "error": {
    "code": "searchengine_timeout",
    "message": "Timeout connecting to backend"
  }
}

{
  "error": {
    "code": "searchengine_locked",
    "message": "Search engine is being processed"
  }
}

{
  "error": {
    "code": "too_many_requests",
    "message": "Too many requests"
  }
}

{
  "error": {
    "code": "internal_error",
    "message": "Internal server error"
  }
}