curl --request POST \
  --url https://api-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amount": 123,
  "currency": "USD"
}
'

import requests

url = "https://api-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals"

payload = {
    "amount": 123,
    "currency": "USD"
}
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({amount: 123, currency: 'USD'})
};

fetch('https://api-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals', 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-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'amount' => 123,
    'currency' => 'USD'
  ]),
  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-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals"

	payload := strings.NewReader("{\n  \"amount\": 123,\n  \"currency\": \"USD\"\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-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"amount\": 123,\n  \"currency\": \"USD\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.synctera.com/v0/external_cards/transfers/{transfer_id}/reversals")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"amount\": 123,\n  \"currency\": \"USD\"\n}"

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

{
  "account_id": "7d943c51-e4ff-4e57-9558-08cab6b963c7",
  "amount": 123,
  "country_code": "US",
  "created_time": "2010-05-06T12:23:34.321Z",
  "currency": "USD",
  "customer_id": "7d943c51-e4ff-4e57-9558-08cab6b963c7",
  "external_card_id": "7d943c51-e4ff-4e57-9558-08cab6b963c7",
  "id": "<string>",
  "last_modified_time": "2010-05-06T12:23:34.321Z",
  "merchant": {
    "address": {
      "address_line_1": "100 Main St.",
      "city": "New York",
      "country_code": "US",
      "postal_code": "49633",
      "state": "NY",
      "address_line_2": "Suite 99"
    },
    "name": "<string>",
    "email": "alice@example.com",
    "phone_number": "+14374570680"
  },
  "type": "PULL",
  "network_decline_details": "<string>",
  "reason": "<string>",
  "transaction_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "three_ds_id": "40e2de9e-4375-4fa1-9393-92da972a9338"
}

{
  "code": "BAD_REQUEST_BODY",
  "detail": "missing required fields: first_name, dob",
  "status": 400,
  "title": "Bad Request Body",
  "type": "https://dev.synctera.com/errors/bad-request-body"
}

{
  "code": "BAD_REQUEST_BODY",
  "detail": "missing required fields: first_name, dob",
  "status": 400,
  "title": "Bad Request Body",
  "type": "https://dev.synctera.com/errors/bad-request-body"
}

{
  "code": "BAD_REQUEST_BODY",
  "detail": "missing required fields: first_name, dob",
  "status": 400,
  "title": "Bad Request Body",
  "type": "https://dev.synctera.com/errors/bad-request-body"
}

{
  "code": "BAD_REQUEST_BODY",
  "detail": "missing required fields: first_name, dob",
  "status": 400,
  "title": "Bad Request Body",
  "type": "https://dev.synctera.com/errors/bad-request-body"
}

{
  "code": "BAD_REQUEST_BODY",
  "detail": "missing required fields: first_name, dob",
  "status": 400,
  "title": "Bad Request Body",
  "type": "https://dev.synctera.com/errors/bad-request-body"
}