curl --request POST \
  --url https://api.paycashless.com/v1/payments/checkout \
  --header 'Content-Type: application/json' \
  --header 'Request-Signature: <request-signature>' \
  --header 'Request-Timestamp: <request-timestamp>' \
  --data '
{
  "reference": "<string>",
  "amount": {
    "value": 50001,
    "currency": "NGN"
  },
  "customer": {
    "email": "[email protected]",
    "name": "<string>"
  },
  "returnUrl": "<string>",
  "callbackUrl": "<string>",
  "metadata": {}
}
'

import requests

url = "https://api.paycashless.com/v1/payments/checkout"

payload = {
    "reference": "<string>",
    "amount": {
        "value": 50001,
        "currency": "NGN"
    },
    "customer": {
        "email": "[email protected]",
        "name": "<string>"
    },
    "returnUrl": "<string>",
    "callbackUrl": "<string>",
    "metadata": {}
}
headers = {
    "Request-Signature": "<request-signature>",
    "Request-Timestamp": "<request-timestamp>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Request-Signature': '<request-signature>',
    'Request-Timestamp': '<request-timestamp>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    reference: '<string>',
    amount: {value: 50001, currency: 'NGN'},
    customer: {email: '[email protected]', name: '<string>'},
    returnUrl: '<string>',
    callbackUrl: '<string>',
    metadata: {}
  })
};

fetch('https://api.paycashless.com/v1/payments/checkout', 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.paycashless.com/v1/payments/checkout",
  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([
    'reference' => '<string>',
    'amount' => [
        'value' => 50001,
        'currency' => 'NGN'
    ],
    'customer' => [
        'email' => '[email protected]',
        'name' => '<string>'
    ],
    'returnUrl' => '<string>',
    'callbackUrl' => '<string>',
    'metadata' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Request-Signature: <request-signature>",
    "Request-Timestamp: <request-timestamp>"
  ],
]);

$response = curl_exec($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.paycashless.com/v1/payments/checkout"

	payload := strings.NewReader("{\n  \"reference\": \"<string>\",\n  \"amount\": {\n    \"value\": 50001,\n    \"currency\": \"NGN\"\n  },\n  \"customer\": {\n    \"email\": \"[email protected]\",\n    \"name\": \"<string>\"\n  },\n  \"returnUrl\": \"<string>\",\n  \"callbackUrl\": \"<string>\",\n  \"metadata\": {}\n}")

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

	req.Header.Add("Request-Signature", "<request-signature>")
	req.Header.Add("Request-Timestamp", "<request-timestamp>")
	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.paycashless.com/v1/payments/checkout")
  .header("Request-Signature", "<request-signature>")
  .header("Request-Timestamp", "<request-timestamp>")
  .header("Content-Type", "application/json")
  .body("{\n  \"reference\": \"<string>\",\n  \"amount\": {\n    \"value\": 50001,\n    \"currency\": \"NGN\"\n  },\n  \"customer\": {\n    \"email\": \"[email protected]\",\n    \"name\": \"<string>\"\n  },\n  \"returnUrl\": \"<string>\",\n  \"callbackUrl\": \"<string>\",\n  \"metadata\": {}\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.paycashless.com/v1/payments/checkout")

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

request = Net::HTTP::Post.new(url)
request["Request-Signature"] = '<request-signature>'
request["Request-Timestamp"] = '<request-timestamp>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"reference\": \"<string>\",\n  \"amount\": {\n    \"value\": 50001,\n    \"currency\": \"NGN\"\n  },\n  \"customer\": {\n    \"email\": \"[email protected]\",\n    \"name\": \"<string>\"\n  },\n  \"returnUrl\": \"<string>\",\n  \"callbackUrl\": \"<string>\",\n  \"metadata\": {}\n}"

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

{
  "id": "<string>",
  "reference": "<string>",
  "amount": {
    "value": 123,
    "currency": "<string>"
  },
  "authorizationUrl": "<string>",
  "returnUrl": "<string>",
  "expiresAt": "2023-11-07T05:31:56Z",
  "callbackUrl": "<string>",
  "metadata": {}
}