curl --request POST \
  --url https://flickopenapi.co/direct-debit/initialize \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "transactionId": "uuid-34l45m5-5mfo9-em43-",
  "bvn": "001122334",
  "phone_no": "07011220033",
  "email": "kings@user.com",
  "address": "Abuja",
  "amount": "1000",
  "start_date": "2024-04-11",
  "end_date": "2024-04-28",
  "frequency": "daily",
  "currency": "NGN",
  "redirectUrl": "https://google.com",
  "webhookUrl": "https://google.com"
}
'

import requests

url = "https://flickopenapi.co/direct-debit/initialize"

payload = {
    "transactionId": "uuid-34l45m5-5mfo9-em43-",
    "bvn": "001122334",
    "phone_no": "07011220033",
    "email": "kings@user.com",
    "address": "Abuja",
    "amount": "1000",
    "start_date": "2024-04-11",
    "end_date": "2024-04-28",
    "frequency": "daily",
    "currency": "NGN",
    "redirectUrl": "https://google.com",
    "webhookUrl": "https://google.com"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    transactionId: 'uuid-34l45m5-5mfo9-em43-',
    bvn: '001122334',
    phone_no: '07011220033',
    email: 'kings@user.com',
    address: 'Abuja',
    amount: '1000',
    start_date: '2024-04-11',
    end_date: '2024-04-28',
    frequency: 'daily',
    currency: 'NGN',
    redirectUrl: 'https://google.com',
    webhookUrl: 'https://google.com'
  })
};

fetch('https://flickopenapi.co/direct-debit/initialize', 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://flickopenapi.co/direct-debit/initialize",
  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([
    'transactionId' => 'uuid-34l45m5-5mfo9-em43-',
    'bvn' => '001122334',
    'phone_no' => '07011220033',
    'email' => 'kings@user.com',
    'address' => 'Abuja',
    'amount' => '1000',
    'start_date' => '2024-04-11',
    'end_date' => '2024-04-28',
    'frequency' => 'daily',
    'currency' => 'NGN',
    'redirectUrl' => 'https://google.com',
    'webhookUrl' => 'https://google.com'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://flickopenapi.co/direct-debit/initialize"

	payload := strings.NewReader("{\n  \"transactionId\": \"uuid-34l45m5-5mfo9-em43-\",\n  \"bvn\": \"001122334\",\n  \"phone_no\": \"07011220033\",\n  \"email\": \"kings@user.com\",\n  \"address\": \"Abuja\",\n  \"amount\": \"1000\",\n  \"start_date\": \"2024-04-11\",\n  \"end_date\": \"2024-04-28\",\n  \"frequency\": \"daily\",\n  \"currency\": \"NGN\",\n  \"redirectUrl\": \"https://google.com\",\n  \"webhookUrl\": \"https://google.com\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://flickopenapi.co/direct-debit/initialize")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transactionId\": \"uuid-34l45m5-5mfo9-em43-\",\n  \"bvn\": \"001122334\",\n  \"phone_no\": \"07011220033\",\n  \"email\": \"kings@user.com\",\n  \"address\": \"Abuja\",\n  \"amount\": \"1000\",\n  \"start_date\": \"2024-04-11\",\n  \"end_date\": \"2024-04-28\",\n  \"frequency\": \"daily\",\n  \"currency\": \"NGN\",\n  \"redirectUrl\": \"https://google.com\",\n  \"webhookUrl\": \"https://google.com\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://flickopenapi.co/direct-debit/initialize")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transactionId\": \"uuid-34l45m5-5mfo9-em43-\",\n  \"bvn\": \"001122334\",\n  \"phone_no\": \"07011220033\",\n  \"email\": \"kings@user.com\",\n  \"address\": \"Abuja\",\n  \"amount\": \"1000\",\n  \"start_date\": \"2024-04-11\",\n  \"end_date\": \"2024-04-28\",\n  \"frequency\": \"daily\",\n  \"currency\": \"NGN\",\n  \"redirectUrl\": \"https://google.com\",\n  \"webhookUrl\": \"https://google.com\"\n}"

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

{
  "CustomerCode": "S1_RFVcKsbBySc6",
  "transactionId": "uuid-34l45m5-5mfo9-",
  "directdeitReference": "uuid-34l45m5-5mfo9-",
  "dated": "2024-04-11T14:49:31.998Z",
  "mandate_status": "initiated",
  "total_expected_deductions": 18,
  "frequency": "daily",
  "amount_per_charge": "1000",
  "total_charge_amount": "1500",
  "url": " https://google.com"
}