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API - Add Drivers

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To help you get started with the iWantFuel API quickly and confidently, we’ve created plug-and-play code samples across all major programming languages and libraries.

Whether you're building in PHP, Python, JavaScript, Java, or beyond, these examples are designed to simplify your development process.

At iWantFuel, our mission is to help you unlock the full power of our platform—while keeping integration seamless, secure, and developer-friendly.

Available Code Samples Include:

  • C# – HttpClient, RestSharp
  • cURL
  • Dart – dio, http
  • Go – Native
  • HTTP (raw)
  • Java – OkHttp, Unirest
  • JavaScript – Fetch, jQuery, XHR
  • Kotlin – OkHttp
  • C – libcurl
  • Node.js – Axios, Native, Request, Unirest
  • Objective-C – NSURLSession
  • OCaml – Cohttp
  • PHP – cURL, Guzzle, HTTP_Request2, pecl_http
  • PowerShell – Invoke-RestMethod
  • Python – http.client, Requests
  • R – httr, RCurl
  • Ruby – Net::HTTP, reqwest, Httpie
  • Shell – wget
  • Swift – URLSession

Start integrating with confidence—and bring seamless driver management to your platform today.

C# - HttpClient 

var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Post, "https://www.iwantfuel.tech/api/add_driver.php");
request.Headers.Add("X-API-Key", "Enter Your API Key Here");
request.Headers.Add("X-Secret-Key", "Enter Your Secret Key Here");
var content = new StringContent("{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}", null, "application/json");
request.Content = content;
var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
Console.WriteLine(await response.Content.ReadAsStringAsync());

C# - RestSharp 

var options = new RestClientOptions("https://www.iwantfuel.tech")
{
  MaxTimeout = -1,
};
var client = new RestClient(options);
var request = new RestRequest("/api/add_driver.php", Method.Post);
request.AddHeader("X-API-Key", "Enter Your API Key Here");
request.AddHeader("X-Secret-Key", "Enter Your Secret Key Here");
request.AddHeader("Content-Type", "application/json");
var body = @"{" + "\n" +
@"  ""first_name"": ""John""," + "\n" +
@"  ""last_name"": ""Doe""," + "\n" +
@"  ""Mobile_Number"": ""0821234567""," + "\n" +
@"  ""dialing_code"": ""+27""," + "\n" +
@"  ""int_num"": ""+27""," + "\n" +
@"  ""active"": ""Yes""" + "\n" +
@"}";
request.AddStringBody(body, DataFormat.Json);
RestResponse response = await client.ExecuteAsync(request);
Console.WriteLine(response.Content);

cURL 

curl --location 'https://www.iwantfuel.tech/api/add_driver.php' \
--header 'X-API-Key: Enter Your API Key Here' \
--header 'X-Secret-Key: Enter Your Secret Key Here' \
--header 'Content-Type: application/json' \
--data '{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}'

Dart - dio 

var headers = {
  'X-API-Key': 'Enter Your API Key Here',
  'X-Secret-Key': 'Enter Your Secret Key Here',
  'Content-Type': 'application/json'
};
var data = json.encode({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});
var dio = Dio();
var response = await dio.request(
  'https://www.iwantfuel.tech/api/add_driver.php',
  options: Options(
    method: 'POST',
    headers: headers,
  ),
  data: data,
);

if (response.statusCode == 200) {
  print(json.encode(response.data));
}
else {
  print(response.statusMessage);
}

Dart - http 

var headers = {
  'X-API-Key': 'Enter Your API Key Here',
  'X-Secret-Key': 'Enter Your Secret Key Here',
  'Content-Type': 'application/json'
};
var request = http.Request('POST', Uri.parse('https://www.iwantfuel.tech/api/add_driver.php'));
request.body = json.encode({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});
request.headers.addAll(headers);

http.StreamedResponse response = await request.send();

if (response.statusCode == 200) {
  print(await response.stream.bytesToString());
}
else {
  print(response.reasonPhrase);
}

Go - Native 

package main

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

func main() {

  url := "https://www.iwantfuel.tech/api/add_driver.php"
  method := "POST"

  payload := strings.NewReader(`{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}`)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("X-API-Key", "Enter Your API Key Here")
  req.Header.Add("X-Secret-Key", "Enter Your Secret Key Here")
  req.Header.Add("Content-Type", "application/json")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := io.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}

HTTP 

package main

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

func main() {

  url := "https://www.iwantfuel.tech/api/add_driver.php"
  method := "POST"

  payload := strings.NewReader(`{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}`)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("X-API-Key", "Enter Your API Key Here")
  req.Header.Add("X-Secret-Key", "Enter Your Secret Key Here")
  req.Header.Add("Content-Type", "application/json")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := io.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}

Java - OkHttp 

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}");
Request request = new Request.Builder()
  .url("https://www.iwantfuel.tech/api/add_driver.php")
  .method("POST", body)
  .addHeader("X-API-Key", "Enter Your API Key Here")
  .addHeader("X-Secret-Key", "Enter Your Secret Key Here")
  .addHeader("Content-Type", "application/json")
  .build();
Response response = client.newCall(request).execute();

Java - Unirest 

Unirest.setTimeouts(0, 0);
HttpResponse<String> response = Unirest.post("https://www.iwantfuel.tech/api/add_driver.php")
  .header("X-API-Key", "Enter Your API Key Here")
  .header("X-Secret-Key", "Enter Your Secret Key Here")
  .header("Content-Type", "application/json")
  .body("{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}")
  .asString();

JavaScript - Fetch 

const myHeaders = new Headers();
myHeaders.append("X-API-Key", "Enter Your API Key Here");
myHeaders.append("X-Secret-Key", "Enter Your Secret Key Here");
myHeaders.append("Content-Type", "application/json");

const raw = JSON.stringify({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});

const requestOptions = {
  method: "POST",
  headers: myHeaders,
  body: raw,
  redirect: "follow"
};

fetch("https://www.iwantfuel.tech/api/add_driver.php", requestOptions)
  .then((response) => response.text())
  .then((result) => console.log(result))
  .catch((error) => console.error(error));

JavaScript - jQuery 

var settings = {
  "url": "https://www.iwantfuel.tech/api/add_driver.php",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "X-API-Key": "Enter Your API Key Here",
    "X-Secret-Key": "Enter Your Secret Key Here",
    "Content-Type": "application/json"
  },
  "data": JSON.stringify({
    "first_name": "John",
    "last_name": "Doe",
    "Mobile_Number": "0821234567",
    "dialing_code": "+27",
    "int_num": "+27",
    "active": "Yes"
  }),
};

$.ajax(settings).done(function (response) {
  console.log(response);
});

JavaScript - XHR 

// WARNING: For POST requests, body is set to null by browsers.
var data = JSON.stringify({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;

xhr.addEventListener("readystatechange", function() {
  if(this.readyState === 4) {
    console.log(this.responseText);
  }
});

xhr.open("POST", "https://www.iwantfuel.tech/api/add_driver.php");
xhr.setRequestHeader("X-API-Key", "Enter Your API Key Here");
xhr.setRequestHeader("X-Secret-Key", "Enter Your Secret Key Here");
xhr.setRequestHeader("Content-Type", "application/json");

xhr.send(data);

Kotlin - Okhttp 

val client = OkHttpClient()
val mediaType = "application/json".toMediaType()
val body = "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}".toRequestBody(mediaType)
val request = Request.Builder()
  .url("https://www.iwantfuel.tech/api/add_driver.php")
  .post(body)
  .addHeader("X-API-Key", "Enter Your API Key Here")
  .addHeader("X-Secret-Key", "Enter Your Secret Key Here")
  .addHeader("Content-Type", "application/json")
  .build()
val response = client.newCall(request).execute()

C - libcurl 

CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "POST");
  curl_easy_setopt(curl, CURLOPT_URL, "https://www.iwantfuel.tech/api/add_driver.php");
  curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
  curl_easy_setopt(curl, CURLOPT_DEFAULT_PROTOCOL, "https");
  struct curl_slist *headers = NULL;
  headers = curl_slist_append(headers, "X-API-Key: Enter Your API Key Here");
  headers = curl_slist_append(headers, "X-Secret-Key: Enter Your Secret Key Here");
  headers = curl_slist_append(headers, "Content-Type: application/json");
  curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
  const char *data = "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}";
  curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
  res = curl_easy_perform(curl);
  curl_slist_free_all(headers);
}
curl_easy_cleanup(curl);

NodeJs - Axios 

const axios = require('axios');
let data = JSON.stringify({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});

let config = {
  method: 'post',
  maxBodyLength: Infinity,
  url: 'https://www.iwantfuel.tech/api/add_driver.php',
  headers: { 
    'X-API-Key': 'Enter Your API Key Here', 
    'X-Secret-Key': 'Enter Your Secret Key Here', 
    'Content-Type': 'application/json'
  },
  data : data
};

axios.request(config)
.then((response) => {
  console.log(JSON.stringify(response.data));
})
.catch((error) => {
  console.log(error);
});

NodeJs - Native 

var https = require('follow-redirects').https;
var fs = require('fs');

var options = {
  'method': 'POST',
  'hostname': 'www.iwantfuel.tech',
  'path': '/api/add_driver.php',
  'headers': {
    'X-API-Key': 'Enter Your API Key Here',
    'X-Secret-Key': 'Enter Your Secret Key Here',
    'Content-Type': 'application/json'
  },
  'maxRedirects': 20
};

var req = https.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function (chunk) {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });

  res.on("error", function (error) {
    console.error(error);
  });
});

var postData = JSON.stringify({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
});

req.write(postData);

req.end();

NodeJs - Request 

var request = require('request');
var options = {
  'method': 'POST',
  'url': 'https://www.iwantfuel.tech/api/add_driver.php',
  'headers': {
    'X-API-Key': 'Enter Your API Key Here',
    'X-Secret-Key': 'Enter Your Secret Key Here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "first_name": "John",
    "last_name": "Doe",
    "Mobile_Number": "0821234567",
    "dialing_code": "+27",
    "int_num": "+27",
    "active": "Yes"
  })

};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});

NodeJs - Unirest 

var unirest = require('unirest');
var req = unirest('POST', 'https://www.iwantfuel.tech/api/add_driver.php')
  .headers({
    'X-API-Key': 'Enter Your API Key Here',
    'X-Secret-Key': 'Enter Your Secret Key Here',
    'Content-Type': 'application/json'
  })
  .send(JSON.stringify({
    "first_name": "John",
    "last_name": "Doe",
    "Mobile_Number": "0821234567",
    "dialing_code": "+27",
    "int_num": "+27",
    "active": "Yes"
  }))
  .end(function (res) { 
    if (res.error) throw new Error(res.error); 
    console.log(res.raw_body);
  });

Objective-C - NSURLSession 

#import <Foundation/Foundation.h>

dispatch_semaphore_t sema = dispatch_semaphore_create(0);

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://www.iwantfuel.tech/api/add_driver.php"]
  cachePolicy:NSURLRequestUseProtocolCachePolicy
  timeoutInterval:10.0];
NSDictionary *headers = @{
  @"X-API-Key": @"Enter Your API Key Here",
  @"X-Secret-Key": @"Enter Your Secret Key Here",
  @"Content-Type": @"application/json"
};

[request setAllHTTPHeaderFields:headers];
NSData *postData = [[NSData alloc] initWithData:[@"{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}" dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:postData];

[request setHTTPMethod:@"POST"];

NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
  if (error) {
    NSLog(@"%@", error);
    dispatch_semaphore_signal(sema);
  } else {
    NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
    NSError *parseError = nil;
    NSDictionary *responseDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError];
    NSLog(@"%@",responseDictionary);
    dispatch_semaphore_signal(sema);
  }
}];
[dataTask resume];
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);

OCaml - Cohttp 

open Lwt
open Cohttp
open Cohttp_lwt_unix

let postData = ref "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}";;

let reqBody = 
  let uri = Uri.of_string "https://www.iwantfuel.tech/api/add_driver.php" in
  let headers = Header.init ()
    |> fun h -> Header.add h "X-API-Key" "Enter Your API Key Here"
    |> fun h -> Header.add h "X-Secret-Key" "Enter Your Secret Key Here"
    |> fun h -> Header.add h "Content-Type" "application/json"
  in
  let body = Cohttp_lwt.Body.of_string !postData in

  Client.call ~headers ~body `POST uri >>= fun (_resp, body) ->
  body |> Cohttp_lwt.Body.to_string >|= fun body -> body

let () =
  let respBody = Lwt_main.run reqBody in
  print_endline (respBody)

PHP - cURL 

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://www.iwantfuel.tech/api/add_driver.php',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS =>'{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}',
  CURLOPT_HTTPHEADER => array(
    'X-API-Key: Enter Your API Key Here',
    'X-Secret-Key: Enter Your Secret Key Here',
    'Content-Type: application/json'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

PHP - Guzzle 

<?php
$client = new Client();
$headers = [
  'X-API-Key' => 'Enter Your API Key Here',
  'X-Secret-Key' => 'Enter Your Secret Key Here',
  'Content-Type' => 'application/json'
];
$body = '{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}';
$request = new Request('POST', 'https://www.iwantfuel.tech/api/add_driver.php', $headers, $body);
$res = $client->sendAsync($request)->wait();
echo $res->getBody();

PHP - HTTP_Request2 

<?php
require_once 'HTTP/Request2.php';
$request = new HTTP_Request2();
$request->setUrl('https://www.iwantfuel.tech/api/add_driver.php');
$request->setMethod(HTTP_Request2::METHOD_POST);
$request->setConfig(array(
  'follow_redirects' => TRUE
));
$request->setHeader(array(
  'X-API-Key' => 'Enter Your API Key Here',
  'X-Secret-Key' => 'Enter Your Secret Key Here',
  'Content-Type' => 'application/json'
));
$request->setBody('{\n  "first_name": "John",\n  "last_name": "Doe",\n  "Mobile_Number": "0821234567",\n  "dialing_code": "+27",\n  "int_num": "+27",\n  "active": "Yes"\n}');
try {
  $response = $request->send();
  if ($response->getStatus() == 200) {
    echo $response->getBody();
  }
  else {
    echo 'Unexpected HTTP status: ' . $response->getStatus() . ' ' .
    $response->getReasonPhrase();
  }
}
catch(HTTP_Request2_Exception $e) {
  echo 'Error: ' . $e->getMessage();
}

PHP - pecl_http 

<?php
$client = new http\Client;
$request = new http\Client\Request;
$request->setRequestUrl('https://www.iwantfuel.tech/api/add_driver.php');
$request->setRequestMethod('POST');
$body = new http\Message\Body;
$body->append('{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}');
$request->setBody($body);
$request->setOptions(array());
$request->setHeaders(array(
  'X-API-Key' => 'Enter Your API Key Here',
  'X-Secret-Key' => 'Enter Your Secret Key Here',
  'Content-Type' => 'application/json'
));
$client->enqueue($request)->send();
$response = $client->getResponse();
echo $response->getBody();

PowerShell - RestMethod 

$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("X-API-Key", "Enter Your API Key Here")
$headers.Add("X-Secret-Key", "Enter Your Secret Key Here")
$headers.Add("Content-Type", "application/json")

$body = @"
{
  `"first_name`": `"John`",
  `"last_name`": `"Doe`",
  `"Mobile_Number`": `"0821234567`",
  `"dialing_code`": `"+27`",
  `"int_num`": `"+27`",
  `"active`": `"Yes`"
}
"@

$response = Invoke-RestMethod 'https://www.iwantfuel.tech/api/add_driver.php' -Method 'POST' -Headers $headers -Body $body
$response | ConvertTo-Json

Python - http.client 

import http.client
import json

conn = http.client.HTTPSConnection("www.iwantfuel.tech")
payload = json.dumps({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
})
headers = {
  'X-API-Key': 'Enter Your API Key Here',
  'X-Secret-Key': 'Enter Your Secret Key Here',
  'Content-Type': 'application/json'
}
conn.request("POST", "/api/add_driver.php", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

Python - Requests 

import requests
import json

url = "https://www.iwantfuel.tech/api/add_driver.php"

payload = json.dumps({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
})
headers = {
  'X-API-Key': 'Enter Your API Key Here',
  'X-Secret-Key': 'Enter Your Secret Key Here',
  'Content-Type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

R - httr 

library(httr)

headers = c(
  'X-API-Key' = 'Enter Your API Key Here',
  'X-Secret-Key' = 'Enter Your Secret Key Here',
  'Content-Type' = 'application/json'
)

body = '{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}';

res <- VERB("POST", url = "https://www.iwantfuel.tech/api/add_driver.php", body = body, add_headers(headers))

cat(content(res, 'text'))

R - RCurl 

library(RCurl)
headers = c(
  "X-API-Key" = "Enter Your API Key Here",
  "X-Secret-Key" = "Enter Your Secret Key Here",
  "Content-Type" = "application/json"
)
params = "{
  \"first_name\": \"John\",
  \"last_name\": \"Doe\",
  \"Mobile_Number\": \"0821234567\",
  \"dialing_code\": \"+27\",
  \"int_num\": \"+27\",
  \"active\": \"Yes\"
}"
res <- postForm("https://www.iwantfuel.tech/api/add_driver.php", .opts=list(postfields = params, httpheader = headers, followlocation = TRUE), style = "httppost")
cat(res)

Ruby - Net::HTTP 

require "uri"
require "json"
require "net/http"

url = URI("https://www.iwantfuel.tech/api/add_driver.php")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = "Enter Your API Key Here"
request["X-Secret-Key"] = "Enter Your Secret Key Here"
request["Content-Type"] = "application/json"
request.body = JSON.dump({
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
})

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

Ruby - reqwest 

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::builder()
        .build()?;

    let mut headers = reqwest::header::HeaderMap::new();
    headers.insert("X-API-Key", "Enter Your API Key Here".parse()?);
    headers.insert("X-Secret-Key", "Enter Your Secret Key Here".parse()?);
    headers.insert("Content-Type", "application/json".parse()?);

    let data = r#"{
    "first_name": "John",
    "last_name": "Doe",
    "Mobile_Number": "0821234567",
    "dialing_code": "+27",
    "int_num": "+27",
    "active": "Yes"
}"#;

    let json: serde_json::Value = serde_json::from_str(&data)?;

    let request = client.request(reqwest::Method::POST, "https://www.iwantfuel.tech/api/add_driver.php")
        .headers(headers)
        .json(&json);

    let response = request.send().await?;
    let body = response.text().await?;

    println!("{}", body);

    Ok(())
}

Ruby - Httpie 

printf '{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}'| http  --follow --timeout 3600 POST 'https://www.iwantfuel.tech/api/add_driver.php' \
 X-API-Key:'Enter Your API Key Here' \
 X-Secret-Key:'Enter Your Secret Key Here' \
 Content-Type:'application/json'

Shell - wget 

wget --no-check-certificate --quiet \
  --method POST \
  --timeout=0 \
  --header 'X-API-Key: Enter Your API Key Here' \
  --header 'X-Secret-Key: Enter Your Secret Key Here' \
  --header 'Content-Type: application/json' \
  --body-data '{
  "first_name": "John",
  "last_name": "Doe",
  "Mobile_Number": "0821234567",
  "dialing_code": "+27",
  "int_num": "+27",
  "active": "Yes"
}' \
   'https://www.iwantfuel.tech/api/add_driver.php'

Swift - URLSession 

let parameters = "{\n  \"first_name\": \"John\",\n  \"last_name\": \"Doe\",\n  \"Mobile_Number\": \"0821234567\",\n  \"dialing_code\": \"+27\",\n  \"int_num\": \"+27\",\n  \"active\": \"Yes\"\n}"
let postData = parameters.data(using: .utf8)

var request = URLRequest(url: URL(string: "https://www.iwantfuel.tech/api/add_driver.php")!,timeoutInterval: Double.infinity)
request.addValue("Enter Your API Key Here", forHTTPHeaderField: "X-API-Key")
request.addValue("Enter Your Secret Key Here", forHTTPHeaderField: "X-Secret-Key")
request.addValue("application/json", forHTTPHeaderField: "Content-Type")

request.httpMethod = "POST"
request.httpBody = postData

let task = URLSession.shared.dataTask(with: request) { data, response, error in 
  guard let data = data else {
    print(String(describing: error))
    return
  }
  print(String(data: data, encoding: .utf8)!)
}

task.resume()