curl --request GET \
  --url https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}

import requests

url = "https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}', 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://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.chift.eu/consumers/{consumer_id}/invoicing/invoices/{invoice_id}")

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

request = Net::HTTP::Get.new(url)

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

{
  "id": "<this-id>",
  "source_ref": {
    "id": "<target-software-id>",
    "model": "invoice"
  },
  "currency": "EUR",
  "invoice_type": "customer_invoice",
  "status": "cancelled",
  "invoice_date": "2026-01-15",
  "tax_amount": 42,
  "untaxed_amount": 200,
  "total": 242,
  "lines": [],
  "partner_id": "<invoicing-partner-id>",
  "invoice_number": "INV-2026-0001",
  "due_date": "2026-02-14",
  "reference": "REF-0001",
  "payment_communication": "+++000/0000/00000+++",
  "customer_memo": "Thank you for your business.",
  "journal_ref": {
    "id": "<target-software-id>",
    "model": "invoice",
    "name": "Example Company S.A."
  },
  "italian_specificities": {
    "stamp_duty_amount": 2,
    "withholding_tax": {
      "rate": 20,
      "amount": 40,
      "reason": "RT01",
      "payment_reason": "A"
    },
    "welfare_fund": {
      "rate": 4,
      "amount": 8,
      "type": "TC01"
    },
    "payment_reporting": {
      "method": "MP01",
      "conditions": "TP01"
    }
  },
  "spanish_specificities": {
    "withholding_tax": {
      "tax_rate": -19,
      "tax_code": "<accounting-tax-code>",
      "tax_amount": -38
    }
  },
  "last_updated_on": "2026-01-15T10:30:00Z",
  "outstanding_amount": 0,
  "last_payment_date": "2026-02-14",
  "accounting_date": "2026-01-15",
  "payment_method_id": "<invoicing-payment-method-id>",
  "currency_exchange_rate": 1,
  "pdf": "<base64-encoded-file-content>"
}

{
  "message": "The ID of the invoice doesn't have the correct format.",
  "status": "error",
  "error_code": "ERROR_INVOICE_ID_FORMAT"
}

{
  "message": "The invoice doesn't exist in the invoicing system.",
  "status": "error",
  "error_code": "ERROR_INVOICE_NOT_FOUND"
}

{
  "message": "Validation error",
  "status": "error",
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}