curl --request PATCH \
  --url https://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "memo": "<string>",
  "paid_amount": 49999999,
  "cancel_reason": "<string>",
  "custom_fields": {},
  "send_cancel_notification": false,
  "has_step_immediately": false,
  "has_step_scheduled": false,
  "has_reminder": false
}
'

import requests

url = "https://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}"

payload = {
    "memo": "<string>",
    "paid_amount": 49999999,
    "cancel_reason": "<string>",
    "custom_fields": {},
    "send_cancel_notification": False,
    "has_step_immediately": False,
    "has_step_scheduled": False,
    "has_reminder": False
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    memo: '<string>',
    paid_amount: 49999999,
    cancel_reason: '<string>',
    custom_fields: {},
    send_cancel_notification: false,
    has_step_immediately: false,
    has_step_scheduled: false,
    has_reminder: false
  })
};

fetch('https://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}', 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.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}",
  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([
    'memo' => '<string>',
    'paid_amount' => 49999999,
    'cancel_reason' => '<string>',
    'custom_fields' => [
        
    ],
    'send_cancel_notification' => false,
    'has_step_immediately' => false,
    'has_step_scheduled' => false,
    'has_reminder' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}"

	payload := strings.NewReader("{\n  \"memo\": \"<string>\",\n  \"paid_amount\": 49999999,\n  \"cancel_reason\": \"<string>\",\n  \"custom_fields\": {},\n  \"send_cancel_notification\": false,\n  \"has_step_immediately\": false,\n  \"has_step_scheduled\": false,\n  \"has_reminder\": false\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"memo\": \"<string>\",\n  \"paid_amount\": 49999999,\n  \"cancel_reason\": \"<string>\",\n  \"custom_fields\": {},\n  \"send_cancel_notification\": false,\n  \"has_step_immediately\": false,\n  \"has_step_scheduled\": false,\n  \"has_reminder\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.utage-system.com/v1/events/{project_id}/applicants/{applicant_id}")

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

request = Net::HTTP::Patch.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"memo\": \"<string>\",\n  \"paid_amount\": 49999999,\n  \"cancel_reason\": \"<string>\",\n  \"custom_fields\": {},\n  \"send_cancel_notification\": false,\n  \"has_step_immediately\": false,\n  \"has_step_scheduled\": false,\n  \"has_reminder\": false\n}"

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