curl --request PUT \
  --url https://{instance}.domo.com/api/content/v2/groups/access \
  --header 'Content-Type: application/json' \
  --header 'X-DOMO-Developer-Token: <api-key>' \
  --data '
[
  {
    "groupId": "1231231232",
    "removeMembers": [
      {
        "type": "USER",
        "id": "112321221"
      }
    ]
  }
]
'

import requests

url = "https://{instance}.domo.com/api/content/v2/groups/access"

payload = [
    {
        "groupId": "1231231232",
        "removeMembers": [
            {
                "type": "USER",
                "id": "112321221"
            }
        ]
    }
]
headers = {
    "X-DOMO-Developer-Token": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {'X-DOMO-Developer-Token': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify([{groupId: '1231231232', removeMembers: [{type: 'USER', id: '112321221'}]}])
};

fetch('https://{instance}.domo.com/api/content/v2/groups/access', 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://{instance}.domo.com/api/content/v2/groups/access",
  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([
    [
        'groupId' => '1231231232',
        'removeMembers' => [
                [
                                'type' => 'USER',
                                'id' => '112321221'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-DOMO-Developer-Token: <api-key>"
  ],
]);

$response = curl_exec($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://{instance}.domo.com/api/content/v2/groups/access"

	payload := strings.NewReader("[\n  {\n    \"groupId\": \"1231231232\",\n    \"removeMembers\": [\n      {\n        \"type\": \"USER\",\n        \"id\": \"112321221\"\n      }\n    ]\n  }\n]")

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

	req.Header.Add("X-DOMO-Developer-Token", "<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.put("https://{instance}.domo.com/api/content/v2/groups/access")
  .header("X-DOMO-Developer-Token", "<api-key>")
  .header("Content-Type", "application/json")
  .body("[\n  {\n    \"groupId\": \"1231231232\",\n    \"removeMembers\": [\n      {\n        \"type\": \"USER\",\n        \"id\": \"112321221\"\n      }\n    ]\n  }\n]")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{instance}.domo.com/api/content/v2/groups/access")

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

request = Net::HTTP::Put.new(url)
request["X-DOMO-Developer-Token"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "[\n  {\n    \"groupId\": \"1231231232\",\n    \"removeMembers\": [\n      {\n        \"type\": \"USER\",\n        \"id\": \"112321221\"\n      }\n    ]\n  }\n]"

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

true