curl --request PATCH \
  --url https://api.citadel.example/api/v1/wallets/{reference} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "tags": [
    "vip",
    "payouts"
  ],
  "end_user_ref": "user-5120"
}
'

const options = {
  method: 'PATCH',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({tags: ['vip', 'payouts'], end_user_ref: 'user-5120'})
};

fetch('https://api.citadel.example/api/v1/wallets/{reference}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.citadel.example/api/v1/wallets/{reference}"

payload = {
    "tags": ["vip", "payouts"],
    "end_user_ref": "user-5120"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.citadel.example/api/v1/wallets/{reference}"

	payload := strings.NewReader("{\n  \"tags\": [\n    \"vip\",\n    \"payouts\"\n  ],\n  \"end_user_ref\": \"user-5120\"\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))

}