curl --request POST \
  --url https://flickopenapi.co/kyb/biz-advance \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "rcNumber": "0060621"
}
'

import requests

url = "https://flickopenapi.co/kyb/biz-advance"

payload = { "rcNumber": "0060621" }
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({rcNumber: '0060621'})
};

fetch('https://flickopenapi.co/kyb/biz-advance', 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/kyb/biz-advance",
  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([
    'rcNumber' => '0060621'
  ]),
  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/kyb/biz-advance"

	payload := strings.NewReader("{\n  \"rcNumber\": \"0060621\"\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/kyb/biz-advance")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"rcNumber\": \"0060621\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://flickopenapi.co/kyb/biz-advance")

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  \"rcNumber\": \"0060621\"\n}"

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

{
  "status": "ACTIVE",
  "id": 5189730,
  "approvedName": "KIDDIEWINK LIMITED",
  "objectives": "null",
  "registrationApproved": true,
  "rcNumber": "1509595",
  "address": "37, Olowora Road",
  "branchAddress": "null",
  "registrationSubmitted": true,
  "businessCommencementDate": "null",
  "reservationSerialNo": "7795298215",
  "active": true,
  "registrationSerialNo": "null",
  "registrationApprovedByRg": "null",
  "trackingId": "4e3FAXmkqneV3bscniPf",
  "dateOfReservation": "2018-12-18T07:44:24.787+00:00",
  "needsProficiencyDocs": false,
  "availabilityCode": "06890724018",
  "nameAvailability": 4189656,
  "forwardedToAo": "null",
  "forwardedToRgs": true,
  "classificationFk": {
    "id": 2,
    "name": "COMPANY",
    "description": "Company"
  },
  "natureOfBusinessFk": {
    "id": 100238,
    "name": "General Merchandise",
    "description": "PRIVATE COMPANY LIMITED BY SHARES",
    "natureOfBusinessCategoryFk": "null",
    "isActive": "null",
    "un_isic": "null",
    "hidden": "null",
    "isic_group_fk": "null"
  },
  "companyTypeFk": {
    "id": 6883,
    "name": "PRIVATE_COMPANY_LIMITED_BY_SHARES",
    "description": "PRIVATE COMPANY LIMITED BY SHARES",
    "classification_fk": {
      "id": 123,
      "name": "null",
      "description": "null"
    }
  },
  "registrationDate": "2019-02-25T15:38:40.357+00:00",
  "review_status": "REVIEWED",
  "isOldRecord": false,
  "regPortalUserFk": {
    "id": 1887270,
    "surname": "BASSEY",
    "firstname": "EMMANUEL",
    "otherName": "ABAONG",
    "email": "emmanuelang@yahoo.com",
    "phoneNumber": "+2347030909736",
    "userId": "CF-909357",
    "approved": true,
    "portalUserTypeFk": {
      "id": 88,
      "name": "Portal User",
      "description": "Portal User"
    },
    "gender": "MALE",
    "dateOfBirth": "1987-04-15T23:00:00.000+00:00",
    "streetNumber": "16",
    "postcode": "100253",
    "Many-More": "<unknown>"
  }
}