curl --request PUT \
  --url https://api.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json;charset=UTF-8' \
  --data '
{
  "id": "groupID",
  "name": "group-name",
  "parentId": "rootGroupId",
  "vehicleIds": [
    "[\"vehicleID1\",\"vehicleID2\"]"
  ],
  "personIds": [
    "[\"personID1\",\"personID2\"]"
  ]
}
'

import requests

url = "https://api.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group"

payload = {
    "id": "groupID",
    "name": "group-name",
    "parentId": "rootGroupId",
    "vehicleIds": ["[\"vehicleID1\",\"vehicleID2\"]"],
    "personIds": ["[\"personID1\",\"personID2\"]"]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json;charset=UTF-8"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json;charset=UTF-8'
  },
  body: JSON.stringify({
    id: 'groupID',
    name: 'group-name',
    parentId: 'rootGroupId',
    vehicleIds: ['["vehicleID1","vehicleID2"]'],
    personIds: ['["personID1","personID2"]']
  })
};

fetch('https://api.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group', 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.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group",
  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([
    'id' => 'groupID',
    'name' => 'group-name',
    'parentId' => 'rootGroupId',
    'vehicleIds' => [
        '["vehicleID1","vehicleID2"]'
    ],
    'personIds' => [
        '["personID1","personID2"]'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json;charset=UTF-8"
  ],
]);

$response = curl_exec($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.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group"

	payload := strings.NewReader("{\n  \"id\": \"groupID\",\n  \"name\": \"group-name\",\n  \"parentId\": \"rootGroupId\",\n  \"vehicleIds\": [\n    \"[\\\"vehicleID1\\\",\\\"vehicleID2\\\"]\"\n  ],\n  \"personIds\": [\n    \"[\\\"personID1\\\",\\\"personID2\\\"]\"\n  ]\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json;charset=UTF-8")

	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.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json;charset=UTF-8")
  .body("{\n  \"id\": \"groupID\",\n  \"name\": \"group-name\",\n  \"parentId\": \"rootGroupId\",\n  \"vehicleIds\": [\n    \"[\\\"vehicleID1\\\",\\\"vehicleID2\\\"]\"\n  ],\n  \"personIds\": [\n    \"[\\\"personID1\\\",\\\"personID2\\\"]\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.connectedfleet.michelin.com/fleet-management/public/v1/customer/{customerId}/group")

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

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json;charset=UTF-8'
request.body = "{\n  \"id\": \"groupID\",\n  \"name\": \"group-name\",\n  \"parentId\": \"rootGroupId\",\n  \"vehicleIds\": [\n    \"[\\\"vehicleID1\\\",\\\"vehicleID2\\\"]\"\n  ],\n  \"personIds\": [\n    \"[\\\"personID1\\\",\\\"personID2\\\"]\"\n  ]\n}"

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

{
  "id": "groupID",
  "name": "group-name",
  "parentId": "rootGroupId",
  "path": "rootGroupId.groupID",
  "vehicleIds": [
    "[\"vehicleID1\",\"vehicleID2\"]"
  ],
  "personIds": [
    "[\"personID1\",\"personID2\"]"
  ]
}

[
  {
    "errorCode": 123,
    "errorMessage": "<string>",
    "offendingFields": [
      "<string>"
    ]
  }
]

{
  "errorCode": 123,
  "errorMessage": "<string>",
  "offendingFields": [
    "<string>"
  ]
}