curl --request POST \
  --url 'https://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile' \
  --header 'Content-Type: multipart/form-data' \
  --form action=sagescreen_update_profile \
  --form 'nonce=<string>' \
  --form user_id=123 \
  --form 'first_name=<string>' \
  --form 'last_name=<string>' \
  --form 'display_name=<string>' \
  --form email=jsmith@example.com \
  --form 'bio=<string>' \
  --form 'phone=<string>' \
  --form 'linkedin=<string>' \
  --form 'whatsapp=<string>' \
  --form 'candidate_message=<string>' \
  --form 'password=<string>' \
  --form 'password_confirm=<string>' \
  --form avatar_upload='@example-file'

import requests

url = "https://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile"

files = { "avatar_upload": ("example-file", open("example-file", "rb")) }
payload = {
    "action": "sagescreen_update_profile",
    "nonce": "<string>",
    "user_id": "123",
    "first_name": "<string>",
    "last_name": "<string>",
    "display_name": "<string>",
    "email": "jsmith@example.com",
    "bio": "<string>",
    "phone": "<string>",
    "linkedin": "<string>",
    "whatsapp": "<string>",
    "candidate_message": "<string>",
    "password": "<string>",
    "password_confirm": "<string>"
}

response = requests.post(url, data=payload, files=files)

print(response.text)

const form = new FormData();
form.append('action', 'sagescreen_update_profile');
form.append('nonce', '<string>');
form.append('user_id', '123');
form.append('first_name', '<string>');
form.append('last_name', '<string>');
form.append('display_name', '<string>');
form.append('email', 'jsmith@example.com');
form.append('bio', '<string>');
form.append('phone', '<string>');
form.append('linkedin', '<string>');
form.append('whatsapp', '<string>');
form.append('candidate_message', '<string>');
form.append('password', '<string>');
form.append('password_confirm', '<string>');
form.append('avatar_upload', '<string>');

const options = {method: 'POST'};

options.body = form;

fetch('https://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile', 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://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"action\"\r\n\r\nsagescreen_update_profile\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"nonce\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"user_id\"\r\n\r\n123\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"first_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"last_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"display_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"email\"\r\n\r\njsmith@example.com\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"phone\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"linkedin\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"whatsapp\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"candidate_message\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password_confirm\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"avatar_upload\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data"
  ],
]);

$response = curl_exec($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://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"action\"\r\n\r\nsagescreen_update_profile\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"nonce\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"user_id\"\r\n\r\n123\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"first_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"last_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"display_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"email\"\r\n\r\njsmith@example.com\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"phone\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"linkedin\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"whatsapp\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"candidate_message\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password_confirm\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"avatar_upload\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"action\"\r\n\r\nsagescreen_update_profile\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"nonce\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"user_id\"\r\n\r\n123\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"first_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"last_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"display_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"email\"\r\n\r\njsmith@example.com\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"phone\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"linkedin\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"whatsapp\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"candidate_message\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password_confirm\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"avatar_upload\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{domain}/wp-json/sagescreen/v1/wp-admin/admin-ajax.php?nonce=&action=sagescreen_update_profile")

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

request = Net::HTTP::Post.new(url)
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"action\"\r\n\r\nsagescreen_update_profile\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"nonce\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"user_id\"\r\n\r\n123\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"first_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"last_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"display_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"email\"\r\n\r\njsmith@example.com\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"bio\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"phone\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"linkedin\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"whatsapp\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"candidate_message\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"password_confirm\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"avatar_upload\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001--"

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