curl --request POST \
  --url https://api.dintero.com/v1/accounts/{aid}/auth/users/{username}/change_username \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "username": "<string>"
}
'

import requests

url = "https://api.dintero.com/v1/accounts/{aid}/auth/users/{username}/change_username"

payload = { "username": "<string>" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({username: '<string>'})
};

fetch('https://api.dintero.com/v1/accounts/{aid}/auth/users/{username}/change_username', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.dintero.com/v1/accounts/{aid}/auth/users/{username}/change_username"

	payload := strings.NewReader("{\n  \"username\": \"<string>\"\n}")

	req, _ := http.NewRequest("POST", 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.post("https://api.dintero.com/v1/accounts/{aid}/auth/users/{username}/change_username")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"username\": \"<string>\"\n}")
  .asString();

{
  "username": "<string>",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created_at": "2023-11-07T05:31:56Z",
  "created_by": "1c92f7e1-2897-4d46-bdcc-c127a914fb4e",
  "updated_at": "2023-11-07T05:31:56Z",
  "deleted_by": "1c92f7e1-2897-4d46-bdcc-c127a914fb4e",
  "deleted_at": "2023-11-07T05:31:56Z",
  "links": [
    {
      "rel": "customers_user",
      "href": "https://api.dintero.com/v1/accounts/P12345678/users/99919"
    },
    {
      "rel": "phone_number",
      "href": "tel:+4799999999"
    },
    {
      "rel": "email",
      "href": "mailto:name@email.com"
    }
  ],
  "mfa": {
    "challenge_type": "<string>",
    "oob_channels": []
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}