curl --request POST \
  --url https://api-sandbox.endl.io/api/v0/cards/{cardholderId}/single-use \
  --header 'Api-Key: <api-key>' \
  --header 'Api-Version: <api-version>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "amount": {
    "amount": "250.00",
    "currency": "USD"
  },
  "bufferPercentage": 10,
  "purpose": "Conference booking"
}
'

import requests

url = "https://api-sandbox.endl.io/api/v0/cards/{cardholderId}/single-use"

payload = {
    "amount": {
        "amount": "250.00",
        "currency": "USD"
    },
    "bufferPercentage": 10,
    "purpose": "Conference booking"
}
headers = {
    "Api-Version": "<api-version>",
    "Idempotency-Key": "<idempotency-key>",
    "Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Api-Version': '<api-version>',
    'Idempotency-Key': '<idempotency-key>',
    'Api-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    amount: {amount: '250.00', currency: 'USD'},
    bufferPercentage: 10,
    purpose: 'Conference booking'
  })
};

fetch('https://api-sandbox.endl.io/api/v0/cards/{cardholderId}/single-use', 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.endl.io/api/v0/cards/{cardholderId}/single-use",
  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' => [
        'amount' => '250.00',
        'currency' => 'USD'
    ],
    'bufferPercentage' => 10,
    'purpose' => 'Conference booking'
  ]),
  CURLOPT_HTTPHEADER => [
    "Api-Key: <api-key>",
    "Api-Version: <api-version>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($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.endl.io/api/v0/cards/{cardholderId}/single-use"

	payload := strings.NewReader("{\n  \"amount\": {\n    \"amount\": \"250.00\",\n    \"currency\": \"USD\"\n  },\n  \"bufferPercentage\": 10,\n  \"purpose\": \"Conference booking\"\n}")

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

	req.Header.Add("Api-Version", "<api-version>")
	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Api-Key", "<api-key>")
	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.endl.io/api/v0/cards/{cardholderId}/single-use")
  .header("Api-Version", "<api-version>")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Api-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"amount\": {\n    \"amount\": \"250.00\",\n    \"currency\": \"USD\"\n  },\n  \"bufferPercentage\": 10,\n  \"purpose\": \"Conference booking\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.endl.io/api/v0/cards/{cardholderId}/single-use")

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

request = Net::HTTP::Post.new(url)
request["Api-Version"] = '<api-version>'
request["Idempotency-Key"] = '<idempotency-key>'
request["Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"amount\": {\n    \"amount\": \"250.00\",\n    \"currency\": \"USD\"\n  },\n  \"bufferPercentage\": 10,\n  \"purpose\": \"Conference booking\"\n}"

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

{
  "cardId": "crd_4fT9...",
  "cardholderId": "cus_8Qw2...",
  "businessId": "<string>",
  "type": "<string>",
  "kind": "standard",
  "status": "active",
  "closedReason": "canceled",
  "displayName": "<string>",
  "last4": "<string>",
  "expiryMonth": "<string>",
  "expiryYear": "<string>",
  "controls": {
    "spendLimit": {
      "amount": {
        "amount": "42.99",
        "currency": "USD"
      },
      "period": "transaction"
    }
  },
  "usage": {
    "spent": {
      "amount": "42.99",
      "currency": "USD"
    },
    "period": "<string>"
  },
  "singleUse": {
    "amount": {
      "amount": "42.99",
      "currency": "USD"
    },
    "bufferPercentage": 123,
    "lifetimeLimit": "<unknown>",
    "expiresAt": "2023-11-07T05:31:56Z",
    "allowedMccs": [
      "<string>"
    ],
    "allowedMerchants": [
      "<string>"
    ],
    "purpose": "<string>",
    "spentAt": "<unknown>"
  },
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "encryptedCard": {
    "alg": "RSA-OAEP-256+A256GCM",
    "keyId": "key_2026_01",
    "encryptedKey": "<string>",
    "iv": "<string>",
    "ciphertext": "<string>",
    "tag": "<string>",
    "aad": "<string>"
  }
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}

{
  "code": 123,
  "message": "<string>",
  "status": "ERROR",
  "data": null,
  "errors": [
    {
      "code": "<string>",
      "message": "<string>",
      "field": "<string>"
    }
  ]
}