curl --location --request GET 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check' --header 'Authorization: Bearer YOUR_API_KEY' 


    

import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import java.io.IOException;

public class Main {
    public static void main(String[] args) {
        OkHttpClient client = new OkHttpClient();

        // Build the GET request
        Request request = new Request.Builder()
            .url("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check")
            .get() // Use GET method without a body
            .addHeader("Authorization", "Bearer YOUR_API_KEY")
            .build();

        // Execute the request
        try (Response response = client.newCall(request).execute()) {
            if (response.isSuccessful()) {
                // Handle the response in case of a successful request
                String responseData = response.body().string();
                System.out.println(responseData);
            } else {
                // Handle errors
                System.out.println("Request error: " + response.code());
            }
        } catch (IOException e) {
            // Handle I/O exceptions
            e.printStackTrace();
        }
    }
}

var settings = {
  "url": "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check",
  "method": "GET",
  "timeout": 0,
  "headers": {
    "Authorization": "Bearer YOUR_API_KEY"
  },
};

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

var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
    
xhr.addEventListener("readystatechange", function() {
if(this.readyState === 4) {
    console.log(this.responseText);
    }
});
    
xhr.open("GET", "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");
xhr.send();

var axios = require('axios');
var config = {
method: 'GET',
url: 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check',
headers: { 
    'Authorization': 'Bearer YOUR_API_KEY'
    },
};
axios(config).then(function (response) {
console.log(JSON.stringify(response.data));
})
.catch(function (error) {
console.log(error);
});

$curl = curl_init();
    
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => '',
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => 'GET',
CURLOPT_HTTPHEADER => array(
    'Authorization: Bearer YOUR_API_KEY'
    ),
));
    
$response = curl_exec($curl);
    
curl_close($curl);
echo $response;

import requests
    
url = "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check"
    
payload={}
headers = {
    'Authorization': 'Bearer YOUR_API_KEY'
}
    
response = requests.request("GET", url, headers=headers, data=payload)
    
print(response.text)
    

require "uri"
require "net/http"
    
url = URI("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check")
    
http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::GET.new(url)
request["Authorization"] = "Bearer YOUR_API_KEY"
    
response = http.request(request)
puts response.read_body

http --follow --timeout 3600 GET 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check' \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check");
client.Timeout = -1;
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main
import (
    "fmt"
    "net/http"
    "io/ioutil"
)
func main() {
    url := "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check"
    method := "GET"
    client := &http.Client {
    }
    req, err := http.NewRequest(method, url, nil)
    if err != nil {
    fmt.Println(err)
    return
    }
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")
    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))
}

import Foundation

let url = URL(string: "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check")!
var request = URLRequest(url: url)
request.httpMethod = "GET"
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}
task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()
    var body: RequestBody? = null

    val requestBuilder = Request.Builder()
        .url("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")

    val request = requestBuilder.method("GET", body).build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'package:http/http.dart' as http;

void main() async {
  var payload = '';

  final request = http.Request(
    "GET",
    Uri.parse("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check"),
  );
  request.headers['Authorization'] = 'Bearer YOUR_API_KEY';
  if (payload.isNotEmpty) {
    request.headers['Content-Type'] = 'application/json';
    request.body = payload;
  }

  final client = http.Client();
  final response = await client.send(request);
  print(await response.stream.bytesToString());
  client.close();
}

use reqwest::blocking::Client;
use reqwest::Method;
use std::error::Error;

fn main() -> Result<(), Box> {
    let method = Method::from_bytes(b"GET")?;
    let client = Client::new();
    let mut body = String::new();

    let mut request = client
        .request(method, "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29082/health+check")
        .header("Authorization", "Bearer YOUR_API_KEY");


    let response = request.send()?;
    println!("{}", response.text()?);
    Ok(())
}

curl --location --request POST 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
'

    

import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import java.io.IOException;

public class Main {
    public static void main(String[] args) {
        OkHttpClient client = new OkHttpClient();

        // Build the GET request
        Request request = new Request.Builder()
            .url("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice")
            .get() // Use GET method without a body
            .addHeader("Authorization", "Bearer YOUR_API_KEY")
            .build();

        // Execute the request
        try (Response response = client.newCall(request).execute()) {
            if (response.isSuccessful()) {
                // Handle the response in case of a successful request
                String responseData = response.body().string();
                System.out.println(responseData);
            } else {
                // Handle errors
                System.out.println("Request error: " + response.code());
            }
        } catch (IOException e) {
            // Handle I/O exceptions
            e.printStackTrace();
        }
    }
}

var settings = {
  "url": "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Authorization": "Bearer YOUR_API_KEY"
  },
};

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

var data = "\r\n  2.1<\/cbc:UBLVersionID>\r\n  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0<\/cbc:CustomizationID>\r\n  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0<\/cbc:ProfileID>\r\n  NG-INV-2025-000123<\/cbc:ID>\r\n  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7<\/cbc:UUID>\r\n  2025-11-03<\/cbc:IssueDate>\r\n  10:15:00<\/cbc:IssueTime>\r\n  380<\/cbc:InvoiceTypeCode>\r\n  NGN<\/cbc:DocumentCurrencyCode>\r\n  NGN<\/cbc:TaxCurrencyCode>\r\n  \r\n    CSID<\/cbc:ID>\r\n    NRS Cryptographic Stamp Identifier<\/cbc:DocumentType>\r\n    \r\n      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    QR<\/cbc:ID>\r\n    QR<\/cbc:DocumentType>\r\n    \r\n      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    \r\n      \r\n        Lagos Trading Company Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        12 Marina Road<\/cbc:StreetName>\r\n        Lagos<\/cbc:CityName>\r\n        Lagos<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        12345678-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Lagos Trading Company Limited<\/cbc:RegistrationName>\r\n        RC-1234567<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingSupplierParty>\r\n  \r\n    \r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        5 Ademola Adetokunbo Crescent<\/cbc:StreetName>\r\n        Abuja<\/cbc:CityName>\r\n        FCT<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        87654321-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:RegistrationName>\r\n        RC-7654321<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingCustomerParty>\r\n  \r\n    2250.00<\/cbc:TaxAmount>\r\n    \r\n      30000.00<\/cbc:TaxableAmount>\r\n      2250.00<\/cbc:TaxAmount>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:TaxCategory>\r\n    <\/cac:TaxSubtotal>\r\n  <\/cac:TaxTotal>\r\n  \r\n    30000.00<\/cbc:LineExtensionAmount>\r\n    30000.00<\/cbc:TaxExclusiveAmount>\r\n    32250.00<\/cbc:TaxInclusiveAmount>\r\n    32250.00<\/cbc:PayableAmount>\r\n  <\/cac:LegalMonetaryTotal>\r\n  \r\n    1<\/cbc:ID>\r\n    2<\/cbc:InvoicedQuantity>\r\n    10000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Office chairs, ergonomic<\/cbc:Description>\r\n      Ergonomic office chair<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      5000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n  \r\n    2<\/cbc:ID>\r\n    1<\/cbc:InvoicedQuantity>\r\n    20000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Executive desk, mahogany<\/cbc:Description>\r\n      Executive desk<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      20000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n<\/Invoice>";
var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
    
xhr.addEventListener("readystatechange", function() {
if(this.readyState === 4) {
    console.log(this.responseText);
    }
});
    
xhr.open("POST", "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice");
xhr.setRequestHeader("Authorization", "Bearer YOUR_API_KEY");
xhr.send(data);

var axios = require('axios');
var data = "\r\n  2.1<\/cbc:UBLVersionID>\r\n  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0<\/cbc:CustomizationID>\r\n  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0<\/cbc:ProfileID>\r\n  NG-INV-2025-000123<\/cbc:ID>\r\n  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7<\/cbc:UUID>\r\n  2025-11-03<\/cbc:IssueDate>\r\n  10:15:00<\/cbc:IssueTime>\r\n  380<\/cbc:InvoiceTypeCode>\r\n  NGN<\/cbc:DocumentCurrencyCode>\r\n  NGN<\/cbc:TaxCurrencyCode>\r\n  \r\n    CSID<\/cbc:ID>\r\n    NRS Cryptographic Stamp Identifier<\/cbc:DocumentType>\r\n    \r\n      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    QR<\/cbc:ID>\r\n    QR<\/cbc:DocumentType>\r\n    \r\n      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    \r\n      \r\n        Lagos Trading Company Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        12 Marina Road<\/cbc:StreetName>\r\n        Lagos<\/cbc:CityName>\r\n        Lagos<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        12345678-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Lagos Trading Company Limited<\/cbc:RegistrationName>\r\n        RC-1234567<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingSupplierParty>\r\n  \r\n    \r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        5 Ademola Adetokunbo Crescent<\/cbc:StreetName>\r\n        Abuja<\/cbc:CityName>\r\n        FCT<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        87654321-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:RegistrationName>\r\n        RC-7654321<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingCustomerParty>\r\n  \r\n    2250.00<\/cbc:TaxAmount>\r\n    \r\n      30000.00<\/cbc:TaxableAmount>\r\n      2250.00<\/cbc:TaxAmount>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:TaxCategory>\r\n    <\/cac:TaxSubtotal>\r\n  <\/cac:TaxTotal>\r\n  \r\n    30000.00<\/cbc:LineExtensionAmount>\r\n    30000.00<\/cbc:TaxExclusiveAmount>\r\n    32250.00<\/cbc:TaxInclusiveAmount>\r\n    32250.00<\/cbc:PayableAmount>\r\n  <\/cac:LegalMonetaryTotal>\r\n  \r\n    1<\/cbc:ID>\r\n    2<\/cbc:InvoicedQuantity>\r\n    10000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Office chairs, ergonomic<\/cbc:Description>\r\n      Ergonomic office chair<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      5000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n  \r\n    2<\/cbc:ID>\r\n    1<\/cbc:InvoicedQuantity>\r\n    20000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Executive desk, mahogany<\/cbc:Description>\r\n      Executive desk<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      20000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n<\/Invoice>";
var config = {
method: 'POST',
url: 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice',
headers: { 
    'Authorization': 'Bearer YOUR_API_KEY'
    },
data : data
};
axios(config).then(function (response) {
console.log(JSON.stringify(response.data));
})
.catch(function (error) {
console.log(error);
});

$curl = curl_init();
    
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice',
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 => '
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
',
CURLOPT_HTTPHEADER => array(
    'Authorization: Bearer YOUR_API_KEY'
    ),
));
    
$response = curl_exec($curl);
    
curl_close($curl);
echo $response;

import requests
    
url = "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice"
    
payload = "\r\n  2.1<\/cbc:UBLVersionID>\r\n  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0<\/cbc:CustomizationID>\r\n  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0<\/cbc:ProfileID>\r\n  NG-INV-2025-000123<\/cbc:ID>\r\n  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7<\/cbc:UUID>\r\n  2025-11-03<\/cbc:IssueDate>\r\n  10:15:00<\/cbc:IssueTime>\r\n  380<\/cbc:InvoiceTypeCode>\r\n  NGN<\/cbc:DocumentCurrencyCode>\r\n  NGN<\/cbc:TaxCurrencyCode>\r\n  \r\n    CSID<\/cbc:ID>\r\n    NRS Cryptographic Stamp Identifier<\/cbc:DocumentType>\r\n    \r\n      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    QR<\/cbc:ID>\r\n    QR<\/cbc:DocumentType>\r\n    \r\n      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    \r\n      \r\n        Lagos Trading Company Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        12 Marina Road<\/cbc:StreetName>\r\n        Lagos<\/cbc:CityName>\r\n        Lagos<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        12345678-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Lagos Trading Company Limited<\/cbc:RegistrationName>\r\n        RC-1234567<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingSupplierParty>\r\n  \r\n    \r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        5 Ademola Adetokunbo Crescent<\/cbc:StreetName>\r\n        Abuja<\/cbc:CityName>\r\n        FCT<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        87654321-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:RegistrationName>\r\n        RC-7654321<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingCustomerParty>\r\n  \r\n    2250.00<\/cbc:TaxAmount>\r\n    \r\n      30000.00<\/cbc:TaxableAmount>\r\n      2250.00<\/cbc:TaxAmount>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:TaxCategory>\r\n    <\/cac:TaxSubtotal>\r\n  <\/cac:TaxTotal>\r\n  \r\n    30000.00<\/cbc:LineExtensionAmount>\r\n    30000.00<\/cbc:TaxExclusiveAmount>\r\n    32250.00<\/cbc:TaxInclusiveAmount>\r\n    32250.00<\/cbc:PayableAmount>\r\n  <\/cac:LegalMonetaryTotal>\r\n  \r\n    1<\/cbc:ID>\r\n    2<\/cbc:InvoicedQuantity>\r\n    10000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Office chairs, ergonomic<\/cbc:Description>\r\n      Ergonomic office chair<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      5000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n  \r\n    2<\/cbc:ID>\r\n    1<\/cbc:InvoicedQuantity>\r\n    20000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Executive desk, mahogany<\/cbc:Description>\r\n      Executive desk<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      20000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n<\/Invoice>" 
headers = {
    'Authorization': 'Bearer YOUR_API_KEY'
}
    
response = requests.request("POST", url, headers=headers, data=payload)
    
print(response.text)
    

require "uri"
require "net/http"
    
url = URI("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice")
    
http = Net::HTTP.new(url.host, url.port);
request = Net::HTTP::POST.new(url)
request["Authorization"] = "Bearer YOUR_API_KEY"
request.body = "\r\n  2.1<\/cbc:UBLVersionID>\r\n  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0<\/cbc:CustomizationID>\r\n  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0<\/cbc:ProfileID>\r\n  NG-INV-2025-000123<\/cbc:ID>\r\n  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7<\/cbc:UUID>\r\n  2025-11-03<\/cbc:IssueDate>\r\n  10:15:00<\/cbc:IssueTime>\r\n  380<\/cbc:InvoiceTypeCode>\r\n  NGN<\/cbc:DocumentCurrencyCode>\r\n  NGN<\/cbc:TaxCurrencyCode>\r\n  \r\n    CSID<\/cbc:ID>\r\n    NRS Cryptographic Stamp Identifier<\/cbc:DocumentType>\r\n    \r\n      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    QR<\/cbc:ID>\r\n    QR<\/cbc:DocumentType>\r\n    \r\n      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    \r\n      \r\n        Lagos Trading Company Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        12 Marina Road<\/cbc:StreetName>\r\n        Lagos<\/cbc:CityName>\r\n        Lagos<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        12345678-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Lagos Trading Company Limited<\/cbc:RegistrationName>\r\n        RC-1234567<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingSupplierParty>\r\n  \r\n    \r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        5 Ademola Adetokunbo Crescent<\/cbc:StreetName>\r\n        Abuja<\/cbc:CityName>\r\n        FCT<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        87654321-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:RegistrationName>\r\n        RC-7654321<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingCustomerParty>\r\n  \r\n    2250.00<\/cbc:TaxAmount>\r\n    \r\n      30000.00<\/cbc:TaxableAmount>\r\n      2250.00<\/cbc:TaxAmount>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:TaxCategory>\r\n    <\/cac:TaxSubtotal>\r\n  <\/cac:TaxTotal>\r\n  \r\n    30000.00<\/cbc:LineExtensionAmount>\r\n    30000.00<\/cbc:TaxExclusiveAmount>\r\n    32250.00<\/cbc:TaxInclusiveAmount>\r\n    32250.00<\/cbc:PayableAmount>\r\n  <\/cac:LegalMonetaryTotal>\r\n  \r\n    1<\/cbc:ID>\r\n    2<\/cbc:InvoicedQuantity>\r\n    10000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Office chairs, ergonomic<\/cbc:Description>\r\n      Ergonomic office chair<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      5000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n  \r\n    2<\/cbc:ID>\r\n    1<\/cbc:InvoicedQuantity>\r\n    20000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Executive desk, mahogany<\/cbc:Description>\r\n      Executive desk<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      20000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n<\/Invoice>"    
response = http.request(request)
puts response.read_body

printf '
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
'| 
http --follow --timeout 3600 POST 'https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice' \
Authorization:'Bearer YOUR_API_KEY'

var client = new RestClient("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice");
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer YOUR_API_KEY");
var body = "\r\n  2.1<\/cbc:UBLVersionID>\r\n  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0<\/cbc:CustomizationID>\r\n  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0<\/cbc:ProfileID>\r\n  NG-INV-2025-000123<\/cbc:ID>\r\n  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7<\/cbc:UUID>\r\n  2025-11-03<\/cbc:IssueDate>\r\n  10:15:00<\/cbc:IssueTime>\r\n  380<\/cbc:InvoiceTypeCode>\r\n  NGN<\/cbc:DocumentCurrencyCode>\r\n  NGN<\/cbc:TaxCurrencyCode>\r\n  \r\n    CSID<\/cbc:ID>\r\n    NRS Cryptographic Stamp Identifier<\/cbc:DocumentType>\r\n    \r\n      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    QR<\/cbc:ID>\r\n    QR<\/cbc:DocumentType>\r\n    \r\n      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5<\/cbc:EmbeddedDocumentBinaryObject>\r\n    <\/cac:Attachment>\r\n  <\/cac:AdditionalDocumentReference>\r\n  \r\n    \r\n      \r\n        Lagos Trading Company Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        12 Marina Road<\/cbc:StreetName>\r\n        Lagos<\/cbc:CityName>\r\n        Lagos<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        12345678-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Lagos Trading Company Limited<\/cbc:RegistrationName>\r\n        RC-1234567<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingSupplierParty>\r\n  \r\n    \r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:Name>\r\n      <\/cac:PartyName>\r\n      \r\n        5 Ademola Adetokunbo Crescent<\/cbc:StreetName>\r\n        Abuja<\/cbc:CityName>\r\n        FCT<\/cbc:CountrySubentity>\r\n        \r\n          NGA<\/cbc:IdentificationCode>\r\n        <\/cac:Country>\r\n      <\/cac:PostalAddress>\r\n      \r\n        87654321-0001<\/cbc:CompanyID>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:PartyTaxScheme>\r\n      \r\n        Abuja Retail Ventures Limited<\/cbc:RegistrationName>\r\n        RC-7654321<\/cbc:CompanyID>\r\n      <\/cac:PartyLegalEntity>\r\n    <\/cac:Party>\r\n  <\/cac:AccountingCustomerParty>\r\n  \r\n    2250.00<\/cbc:TaxAmount>\r\n    \r\n      30000.00<\/cbc:TaxableAmount>\r\n      2250.00<\/cbc:TaxAmount>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:TaxCategory>\r\n    <\/cac:TaxSubtotal>\r\n  <\/cac:TaxTotal>\r\n  \r\n    30000.00<\/cbc:LineExtensionAmount>\r\n    30000.00<\/cbc:TaxExclusiveAmount>\r\n    32250.00<\/cbc:TaxInclusiveAmount>\r\n    32250.00<\/cbc:PayableAmount>\r\n  <\/cac:LegalMonetaryTotal>\r\n  \r\n    1<\/cbc:ID>\r\n    2<\/cbc:InvoicedQuantity>\r\n    10000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Office chairs, ergonomic<\/cbc:Description>\r\n      Ergonomic office chair<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      5000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n  \r\n    2<\/cbc:ID>\r\n    1<\/cbc:InvoicedQuantity>\r\n    20000.00<\/cbc:LineExtensionAmount>\r\n    \r\n      Executive desk, mahogany<\/cbc:Description>\r\n      Executive desk<\/cbc:Name>\r\n      \r\n        S<\/cbc:ID>\r\n        7.5<\/cbc:Percent>\r\n        \r\n          VAT<\/cbc:ID>\r\n        <\/cac:TaxScheme>\r\n      <\/cac:ClassifiedTaxCategory>\r\n    <\/cac:Item>\r\n    \r\n      20000.00<\/cbc:PriceAmount>\r\n    <\/cac:Price>\r\n  <\/cac:InvoiceLine>\r\n<\/Invoice>";
request.AddParameter("text/plain", body, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

package main
import (
    "fmt"
    "net/http"
    "io/ioutil"
)
func main() {
    url := "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice"
    method := "POST"
    payload := strings.NewReader("
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
")
    client := &http.Client {
    }
    req, err := http.NewRequest(method, url, nil)
    if err != nil {
    fmt.Println(err)
    return
    }
    req.Header.Add("Authorization", "Bearer YOUR_API_KEY")
    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))
}

import Foundation

let url = URL(string: "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer YOUR_API_KEY", forHTTPHeaderField: "Authorization")
request.httpBody = "
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
".data(using: .utf8)
request.setValue("application/json", forHTTPHeaderField: "Content-Type")

let task = URLSession.shared.dataTask(with: request) { data, _, error in
    if let error = error {
        print(error.localizedDescription)
        return
    }
    if let data = data {
        print(String(decoding: data, as: UTF8.self))
    }
}
task.resume()

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody
import okhttp3.RequestBody.Companion.toRequestBody

fun main() {
    val client = OkHttpClient()
    var body: RequestBody? = null
    body = "
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
".toRequestBody("application/json".toMediaType())

    val requestBuilder = Request.Builder()
        .url("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice")
        .addHeader("Authorization", "Bearer YOUR_API_KEY")

    val request = requestBuilder.method("POST", body).build()

    client.newCall(request).execute().use { response ->
        println(response.body?.string())
    }
}

import 'package:http/http.dart' as http;

void main() async {
  var payload = '';
  payload = "
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
";

  final request = http.Request(
    "POST",
    Uri.parse("https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice"),
  );
  request.headers['Authorization'] = 'Bearer YOUR_API_KEY';
  if (payload.isNotEmpty) {
    request.headers['Content-Type'] = 'application/json';
    request.body = payload;
  }

  final client = http.Client();
  final response = await client.send(request);
  print(await response.stream.bytesToString());
  client.close();
}

use reqwest::blocking::Client;
use reqwest::Method;
use std::error::Error;

fn main() -> Result<(), Box> {
    let method = Method::from_bytes(b"POST")?;
    let client = Client::new();
    let mut body = String::new();
    body = r#"
  2.1
  urn:cen.eu:en16931:2017#compliant#urn:fdc:nrs.gov.ng:ng-einvoice:1.0
  urn:fdc:peppol.eu:2017:poacc:billing:01:1.0
  NG-INV-2025-000123
  IRN-4c2f9d3e8a1b47f0b6c5d2e1f0a9b8c7
  2025-11-03
  10:15:00
  380
  NGN
  NGN
  
    CSID
    NRS Cryptographic Stamp Identifier
    
      Q1NJRC1QTEFDRUhPTERFUi1zdHJ1Y3R1cmUtb25seS1ub3QtdmVyaWZpZWQ=
    
  
  
    QR
    QR
    
      UVItUExBQ0VIT0xERVItYmFzZTY0LXN0cnVjdHVyZS1vbmx5
    
  
  
    
      
        Lagos Trading Company Limited
      
      
        12 Marina Road
        Lagos
        Lagos
        
          NGA
        
      
      
        12345678-0001
        
          VAT
        
      
      
        Lagos Trading Company Limited
        RC-1234567
      
    
  
  
    
      
        Abuja Retail Ventures Limited
      
      
        5 Ademola Adetokunbo Crescent
        Abuja
        FCT
        
          NGA
        
      
      
        87654321-0001
        
          VAT
        
      
      
        Abuja Retail Ventures Limited
        RC-7654321
      
    
  
  
    2250.00
    
      30000.00
      2250.00
      
        S
        7.5
        
          VAT
        
      
    
  
  
    30000.00
    30000.00
    32250.00
    32250.00
  
  
    1
    2
    10000.00
    
      Office chairs, ergonomic
      Ergonomic office chair
      
        S
        7.5
        
          VAT
        
      
    
    
      5000.00
    
  
  
    2
    1
    20000.00
    
      Executive desk, mahogany
      Executive desk
      
        S
        7.5
        
          VAT
        
      
    
    
      20000.00
    
  
"#.to_string();

    let mut request = client
        .request(method, "https://zylalabs.com/api/13425/nigeria+nrs+firs+e-invoice+validator+api/29084/validate+e-invoice")
        .header("Authorization", "Bearer YOUR_API_KEY");

    request = request.body(body.clone());

    let response = request.send()?;
    println!("{}", response.text()?);
    Ok(())
}