curl --request POST \
  --url https://sandbox.cashfree.com/import/transactions/{cf_payment_id} \
  --header 'Content-Type: multipart/form-data' \
  --header 'x-api-version: <x-api-version>' \
  --header 'x-client-id: <x-client-id>' \
  --header 'x-client-secret: <x-client-secret>' \
  --form 'importer_name=<string>' \
  --form 'invoice_number=<string>' \
  --form invoice_file=@/path/to/file.pdf

import requests

url = "https://sandbox.cashfree.com/import/transactions/{cf_payment_id}"

payload = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"importer_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_number\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_file\"\r\n\r\n@/path/to/file.pdf\r\n-----011000010111000001101001--"
headers = {
    "x-client-id": "<x-client-id>",
    "x-client-secret": "<x-client-secret>",
    "x-api-version": "<x-api-version>",
    "Content-Type": "multipart/form-data"
}

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

print(response.text)

const form = new FormData();
form.append('importer_name', '<string>');
form.append('invoice_number', '<string>');
form.append('invoice_file', '@/path/to/file.pdf');

const options = {
  method: 'POST',
  headers: {
    'x-client-id': '<x-client-id>',
    'x-client-secret': '<x-client-secret>',
    'x-api-version': '<x-api-version>'
  }
};

options.body = form;

fetch('https://sandbox.cashfree.com/import/transactions/{cf_payment_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://sandbox.cashfree.com/import/transactions/{cf_payment_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"importer_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_number\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_file\"\r\n\r\n@/path/to/file.pdf\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data",
    "x-api-version: <x-api-version>",
    "x-client-id: <x-client-id>",
    "x-client-secret: <x-client-secret>"
  ],
]);

$response = curl_exec($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://sandbox.cashfree.com/import/transactions/{cf_payment_id}"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"importer_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_number\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_file\"\r\n\r\n@/path/to/file.pdf\r\n-----011000010111000001101001--")

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

	req.Header.Add("x-client-id", "<x-client-id>")
	req.Header.Add("x-client-secret", "<x-client-secret>")
	req.Header.Add("x-api-version", "<x-api-version>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://sandbox.cashfree.com/import/transactions/{cf_payment_id}")
  .header("x-client-id", "<x-client-id>")
  .header("x-client-secret", "<x-client-secret>")
  .header("x-api-version", "<x-api-version>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"importer_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_number\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_file\"\r\n\r\n@/path/to/file.pdf\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.cashfree.com/import/transactions/{cf_payment_id}")

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

request = Net::HTTP::Post.new(url)
request["x-client-id"] = '<x-client-id>'
request["x-client-secret"] = '<x-client-secret>'
request["x-api-version"] = '<x-api-version>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"importer_name\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_number\"\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"invoice_file\"\r\n\r\n@/path/to/file.pdf\r\n-----011000010111000001101001--"

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