curl --request POST 'https://app.topups.co.ke/api/send_airtime' \
--header 'Accept: application/json' \
--header 'Authorization: Bearer a12f4f9a99be83f1e631e379834864e7' \
--header 'Content-Type: application/json' \
--data-raw '{
    "channel_type": "Airtime"
}'

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => 'https://app.topups.co.ke/api/get_balance',
    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 =>'{
        "channel_type": "Airtime"
    }',
    CURLOPT_HTTPHEADER => array(
        'Accept: application/json',
        'Authorization: Bearer a12f4f9a99be83f1e631e379834864e7',
        'Content-Type: application/json'
    ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

#!/usr/bin/python
import http.client
import json

conn = http.client.HTTPSConnection("app.topups.co.ke")
payload = json.dumps({
    "channel_type": "Airtime"
})
headers = {
    'Accept': 'application/json',
    'Authorization': 'Bearer a12f4f9a99be83f1e631e379834864e7',
    'Content-Type': 'application/json'
}
conn.request("POST", "/api/get_balance", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

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

url = URI("https://app.topups.co.ke/api/get_balance")

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

request = Net::HTTP::Post.new(url)
request["Accept"] = "application/json"
request["Authorization"] = "Bearer a12f4f9a99be83f1e631e379834864e7"
request["Content-Type"] = "application/json"
request.body = JSON.dump({
    "channel_type": "Airtime"
})

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

OkHttpClient client = new OkHttpClient().newBuilder()
    .build();
MediaType mediaType = MediaType.parse("application/json");
RequestBody body = RequestBody.create(mediaType, "{\r\n    \"channel_type\": \"Airtime\"\r\n}");
Request request = new Request.Builder()
    .url("https://app.topups.co.ke/api/get_balance")
    .method("POST", body)
    .addHeader("Accept", "application/json")
    .addHeader("Authorization", "Bearer a12f4f9a99be83f1e631e379834864e7")
    .addHeader("Content-Type", "application/json")
    .build();
Response response = client.newCall(request).execute();

var client = new RestClient("https://app.topups.co.ke/api/get_balance");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Accept", "application/json");
request.AddHeader("Authorization", "Bearer a12f4f9a99be83f1e631e379834864e7");
request.AddHeader("Content-Type", "application/json");
var body = @"{
" + "\n" +
@"    ""channel_type"": ""Airtime""
" + "\n" +
@"}";
request.AddParameter("application/json", body,  ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

var request = require('request');
var options = {
    'method': 'POST',
    'url': 'https://app.topups.co.ke/api/get_balance',
    'headers': {
        'Accept': 'application/json',
        'Authorization': 'Bearer a12f4f9a99be83f1e631e379834864e7',
        'Content-Type': 'application/json'
    },
    body: JSON.stringify({
        "channel_type": "Airtime"
    })
};
request(options, function (error, response) {
if (error) throw new Error(error);
    console.log(response.body);
});

package main

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

func main() {

url := "https://app.topups.co.ke/api/get_balance"
method := "POST"

payload := strings.NewReader(`{`+"
"+`
    "channel_type": "Airtime"`+"
"+`
}`)

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

if err != nil {
    fmt.Println(err)
    return
}
req.Header.Add("Accept", "application/json")
req.Header.Add("Authorization", "Bearer a12f4f9a99be83f1e631e379834864e7")
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 := ioutil.ReadAll(res.Body)
if err != nil {
    fmt.Println(err)
    return
}
fmt.Println(string(body))
}

<?xml version="1.0" encoding="utf-8"?>
<xml>
    <status>
        <type>SUCCESS</type>
        <code>0000</code>
        <message>Balance Found</message>
    </status>
    <data>
        <errors/>
        <channel>
            <type>Airtime</type>
            <currency>KES</currency>
            <balance>41226.00</balance>
        </channel>
    </data>
</xml>

<?xml version="1.0" encoding="utf-8"?>
<xml>
    <status>
        <type>FAIL</type>
        <code>3000</code>
        <message>Missing or Invalid Parameters</message>
    </status>
    <data>
        <errors>
            <error>'channel_type is required.'</error>
        </errors>
    </data>
</xml>