curl --request POST \
  --url https://sandbox.users.niobi.co/api/niobi-signature \
  --header 'Content-Type: application/json' \
  --data '
{
  "client_id": "K1PoY1WYricSpXh6Wm24txxxxxxxxxx",
  "sender": "Niobi integration",
  "salt": "mySalt12342423",
  "params": {
    "amount": 10000,
    "currency": "KES",
    "mobile": "254161166649",
    "payment_method_type": "send money",
    "callback_url": "https://yourdomain.com/niobi/callback"
  }
}
'

import requests

url = "https://sandbox.users.niobi.co/api/niobi-signature"

payload = {
    "client_id": "K1PoY1WYricSpXh6Wm24txxxxxxxxxx",
    "sender": "Niobi integration",
    "salt": "mySalt12342423",
    "params": {
        "amount": 10000,
        "currency": "KES",
        "mobile": "254161166649",
        "payment_method_type": "send money",
        "callback_url": "https://yourdomain.com/niobi/callback"
    }
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    client_id: 'K1PoY1WYricSpXh6Wm24txxxxxxxxxx',
    sender: 'Niobi integration',
    salt: 'mySalt12342423',
    params: {
      amount: 10000,
      currency: 'KES',
      mobile: '254161166649',
      payment_method_type: 'send money',
      callback_url: 'https://yourdomain.com/niobi/callback'
    }
  })
};

fetch('https://sandbox.users.niobi.co/api/niobi-signature', 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://sandbox.users.niobi.co/api/niobi-signature",
  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([
    'client_id' => 'K1PoY1WYricSpXh6Wm24txxxxxxxxxx',
    'sender' => 'Niobi integration',
    'salt' => 'mySalt12342423',
    'params' => [
        'amount' => 10000,
        'currency' => 'KES',
        'mobile' => '254161166649',
        'payment_method_type' => 'send money',
        'callback_url' => 'https://yourdomain.com/niobi/callback'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "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://sandbox.users.niobi.co/api/niobi-signature"

	payload := strings.NewReader("{\n  \"client_id\": \"K1PoY1WYricSpXh6Wm24txxxxxxxxxx\",\n  \"sender\": \"Niobi integration\",\n  \"salt\": \"mySalt12342423\",\n  \"params\": {\n    \"amount\": 10000,\n    \"currency\": \"KES\",\n    \"mobile\": \"254161166649\",\n    \"payment_method_type\": \"send money\",\n    \"callback_url\": \"https://yourdomain.com/niobi/callback\"\n  }\n}")

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

	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://sandbox.users.niobi.co/api/niobi-signature")
  .header("Content-Type", "application/json")
  .body("{\n  \"client_id\": \"K1PoY1WYricSpXh6Wm24txxxxxxxxxx\",\n  \"sender\": \"Niobi integration\",\n  \"salt\": \"mySalt12342423\",\n  \"params\": {\n    \"amount\": 10000,\n    \"currency\": \"KES\",\n    \"mobile\": \"254161166649\",\n    \"payment_method_type\": \"send money\",\n    \"callback_url\": \"https://yourdomain.com/niobi/callback\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.users.niobi.co/api/niobi-signature")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"client_id\": \"K1PoY1WYricSpXh6Wm24txxxxxxxxxx\",\n  \"sender\": \"Niobi integration\",\n  \"salt\": \"mySalt12342423\",\n  \"params\": {\n    \"amount\": 10000,\n    \"currency\": \"KES\",\n    \"mobile\": \"254161166649\",\n    \"payment_method_type\": \"send money\",\n    \"callback_url\": \"https://yourdomain.com/niobi/callback\"\n  }\n}"

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

{
  "success": true,
  "message": "Signature was generated successfully.",
  "data": {
    "client_id": "U72j7racuxK7CUwN4GmRVmfBt6JsivGKoDPx0EQl",
    "params": {
      "account_name": "Test Account",
      "amount": 500,
      "callback_url": "https://example.com/callback",
      "country_id": 1,
      "currency": "KES",
      "mobile": "254161166649",
      "name": "John Doe",
      "payment_method_type": "send money",
      "third_party_reference_1": "REF-001",
      "third_party_reference_2": "REF-002"
    },
    "salt": "mySalt12342423",
    "sender": "your_app",
    "timestamp": 1780472896,
    "signature": "ce56d1b22b03c1728528fed89c50411fe3faf8d8ec35d6dfc9712f4697543551"
  }
}

{
  "success": false,
  "message": "Entity integration record not found."
}