curl --request PUT \
  --url https://api.mentionlab.io/api/v1/entity-groups/{id}/entities \
  --header 'Content-Type: application/json' \
  --header 'x-project-id: <x-project-id>' \
  --data '
{
  "entityIds": [
    "550e8400-e29b-41d4-a716-446655440000",
    "6ba7b810-9dad-11d1-80b4-00c04fd430c8"
  ]
}
'

import requests

url = "https://api.mentionlab.io/api/v1/entity-groups/{id}/entities"

payload = { "entityIds": ["550e8400-e29b-41d4-a716-446655440000", "6ba7b810-9dad-11d1-80b4-00c04fd430c8"] }
headers = {
    "x-project-id": "<x-project-id>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {'x-project-id': '<x-project-id>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    entityIds: ['550e8400-e29b-41d4-a716-446655440000', '6ba7b810-9dad-11d1-80b4-00c04fd430c8']
  })
};

fetch('https://api.mentionlab.io/api/v1/entity-groups/{id}/entities', 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://api.mentionlab.io/api/v1/entity-groups/{id}/entities",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'entityIds' => [
        '550e8400-e29b-41d4-a716-446655440000',
        '6ba7b810-9dad-11d1-80b4-00c04fd430c8'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-project-id: <x-project-id>"
  ],
]);

$response = curl_exec($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://api.mentionlab.io/api/v1/entity-groups/{id}/entities"

	payload := strings.NewReader("{\n  \"entityIds\": [\n    \"550e8400-e29b-41d4-a716-446655440000\",\n    \"6ba7b810-9dad-11d1-80b4-00c04fd430c8\"\n  ]\n}")

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

	req.Header.Add("x-project-id", "<x-project-id>")
	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.put("https://api.mentionlab.io/api/v1/entity-groups/{id}/entities")
  .header("x-project-id", "<x-project-id>")
  .header("Content-Type", "application/json")
  .body("{\n  \"entityIds\": [\n    \"550e8400-e29b-41d4-a716-446655440000\",\n    \"6ba7b810-9dad-11d1-80b4-00c04fd430c8\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.mentionlab.io/api/v1/entity-groups/{id}/entities")

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

request = Net::HTTP::Put.new(url)
request["x-project-id"] = '<x-project-id>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"entityIds\": [\n    \"550e8400-e29b-41d4-a716-446655440000\",\n    \"6ba7b810-9dad-11d1-80b4-00c04fd430c8\"\n  ]\n}"

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

{
  "statusCode": 400,
  "message": "Validation failed",
  "error": "Bad Request"
}

{
  "statusCode": 400,
  "message": "Validation failed",
  "error": "Bad Request"
}

{
  "statusCode": 400,
  "message": "Validation failed",
  "error": "Bad Request"
}