curl --request POST \
  --url https://api.quentli.com/v1/invoices \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "input": {
    "dueDate": "2025-06-01T00:00:00.000Z",
    "collectionMethod": "SEND_REMINDER",
    "customerId": "cus_1234567890abcdefghij",
    "items": [
      {
        "conceptId": "pc_1234567890abcdefghij",
        "concept": {
          "displayName": "Colegiatura Marzo",
          "amount": 150000,
          "currency": "MXN"
        },
        "quantity": 1,
        "amount": null,
        "currency": null,
        "description": null
      }
    ],
    "expireDate": null,
    "subscriptionId": null,
    "allowOfftimePayment": null,
    "beneficiaryId": null,
    "modifiers": [
      {
        "modifierId": "prm_1234567890abcdefghij"
      }
    ],
    "discounts": [
      {
        "discountId": "disc_1234567890abcdefghij"
      }
    ],
    "metadata": [
      {
        "key": "student_id",
        "value": "ALU-2025-001"
      }
    ]
  }
}
'

import requests

url = "https://api.quentli.com/v1/invoices"

payload = { "input": {
        "dueDate": "2025-06-01T00:00:00.000Z",
        "collectionMethod": "SEND_REMINDER",
        "customerId": "cus_1234567890abcdefghij",
        "items": [
            {
                "conceptId": "pc_1234567890abcdefghij",
                "concept": {
                    "displayName": "Colegiatura Marzo",
                    "amount": 150000,
                    "currency": "MXN"
                },
                "quantity": 1,
                "amount": None,
                "currency": None,
                "description": None
            }
        ],
        "expireDate": None,
        "subscriptionId": None,
        "allowOfftimePayment": None,
        "beneficiaryId": None,
        "modifiers": [{ "modifierId": "prm_1234567890abcdefghij" }],
        "discounts": [{ "discountId": "disc_1234567890abcdefghij" }],
        "metadata": [
            {
                "key": "student_id",
                "value": "ALU-2025-001"
            }
        ]
    } }
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({
    input: {
      dueDate: '2025-06-01T00:00:00.000Z',
      collectionMethod: 'SEND_REMINDER',
      customerId: 'cus_1234567890abcdefghij',
      items: [
        {
          conceptId: 'pc_1234567890abcdefghij',
          concept: {displayName: 'Colegiatura Marzo', amount: 150000, currency: 'MXN'},
          quantity: 1,
          amount: null,
          currency: null,
          description: null
        }
      ],
      expireDate: null,
      subscriptionId: null,
      allowOfftimePayment: null,
      beneficiaryId: null,
      modifiers: [{modifierId: 'prm_1234567890abcdefghij'}],
      discounts: [{discountId: 'disc_1234567890abcdefghij'}],
      metadata: [{key: 'student_id', value: 'ALU-2025-001'}]
    }
  })
};

fetch('https://api.quentli.com/v1/invoices', 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.quentli.com/v1/invoices",
  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([
    'input' => [
        'dueDate' => '2025-06-01T00:00:00.000Z',
        'collectionMethod' => 'SEND_REMINDER',
        'customerId' => 'cus_1234567890abcdefghij',
        'items' => [
                [
                                'conceptId' => 'pc_1234567890abcdefghij',
                                'concept' => [
                                                                'displayName' => 'Colegiatura Marzo',
                                                                'amount' => 150000,
                                                                'currency' => 'MXN'
                                ],
                                'quantity' => 1,
                                'amount' => null,
                                'currency' => null,
                                'description' => null
                ]
        ],
        'expireDate' => null,
        'subscriptionId' => null,
        'allowOfftimePayment' => null,
        'beneficiaryId' => null,
        'modifiers' => [
                [
                                'modifierId' => 'prm_1234567890abcdefghij'
                ]
        ],
        'discounts' => [
                [
                                'discountId' => 'disc_1234567890abcdefghij'
                ]
        ],
        'metadata' => [
                [
                                'key' => 'student_id',
                                'value' => 'ALU-2025-001'
                ]
        ]
    ]
  ]),
  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://api.quentli.com/v1/invoices"

	payload := strings.NewReader("{\n  \"input\": {\n    \"dueDate\": \"2025-06-01T00:00:00.000Z\",\n    \"collectionMethod\": \"SEND_REMINDER\",\n    \"customerId\": \"cus_1234567890abcdefghij\",\n    \"items\": [\n      {\n        \"conceptId\": \"pc_1234567890abcdefghij\",\n        \"concept\": {\n          \"displayName\": \"Colegiatura Marzo\",\n          \"amount\": 150000,\n          \"currency\": \"MXN\"\n        },\n        \"quantity\": 1,\n        \"amount\": null,\n        \"currency\": null,\n        \"description\": null\n      }\n    ],\n    \"expireDate\": null,\n    \"subscriptionId\": null,\n    \"allowOfftimePayment\": null,\n    \"beneficiaryId\": null,\n    \"modifiers\": [\n      {\n        \"modifierId\": \"prm_1234567890abcdefghij\"\n      }\n    ],\n    \"discounts\": [\n      {\n        \"discountId\": \"disc_1234567890abcdefghij\"\n      }\n    ],\n    \"metadata\": [\n      {\n        \"key\": \"student_id\",\n        \"value\": \"ALU-2025-001\"\n      }\n    ]\n  }\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://api.quentli.com/v1/invoices")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"input\": {\n    \"dueDate\": \"2025-06-01T00:00:00.000Z\",\n    \"collectionMethod\": \"SEND_REMINDER\",\n    \"customerId\": \"cus_1234567890abcdefghij\",\n    \"items\": [\n      {\n        \"conceptId\": \"pc_1234567890abcdefghij\",\n        \"concept\": {\n          \"displayName\": \"Colegiatura Marzo\",\n          \"amount\": 150000,\n          \"currency\": \"MXN\"\n        },\n        \"quantity\": 1,\n        \"amount\": null,\n        \"currency\": null,\n        \"description\": null\n      }\n    ],\n    \"expireDate\": null,\n    \"subscriptionId\": null,\n    \"allowOfftimePayment\": null,\n    \"beneficiaryId\": null,\n    \"modifiers\": [\n      {\n        \"modifierId\": \"prm_1234567890abcdefghij\"\n      }\n    ],\n    \"discounts\": [\n      {\n        \"discountId\": \"disc_1234567890abcdefghij\"\n      }\n    ],\n    \"metadata\": [\n      {\n        \"key\": \"student_id\",\n        \"value\": \"ALU-2025-001\"\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.quentli.com/v1/invoices")

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  \"input\": {\n    \"dueDate\": \"2025-06-01T00:00:00.000Z\",\n    \"collectionMethod\": \"SEND_REMINDER\",\n    \"customerId\": \"cus_1234567890abcdefghij\",\n    \"items\": [\n      {\n        \"conceptId\": \"pc_1234567890abcdefghij\",\n        \"concept\": {\n          \"displayName\": \"Colegiatura Marzo\",\n          \"amount\": 150000,\n          \"currency\": \"MXN\"\n        },\n        \"quantity\": 1,\n        \"amount\": null,\n        \"currency\": null,\n        \"description\": null\n      }\n    ],\n    \"expireDate\": null,\n    \"subscriptionId\": null,\n    \"allowOfftimePayment\": null,\n    \"beneficiaryId\": null,\n    \"modifiers\": [\n      {\n        \"modifierId\": \"prm_1234567890abcdefghij\"\n      }\n    ],\n    \"discounts\": [\n      {\n        \"discountId\": \"disc_1234567890abcdefghij\"\n      }\n    ],\n    \"metadata\": [\n      {\n        \"key\": \"student_id\",\n        \"value\": \"ALU-2025-001\"\n      }\n    ]\n  }\n}"

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

{
  "invoice": {
    "id": "inv_1234567890abcdefghij",
    "createdAt": "2025-01-10T12:00:00.000Z",
    "updatedAt": "2025-01-10T12:00:00.000Z",
    "customerId": "cus_1234567890abcdefghij",
    "subscriptionId": "sub_1234567890abcdefghij",
    "collectionMethod": "SEND_REMINDER",
    "totalAmount": 150000,
    "currency": "MXN",
    "dueDate": "2025-02-01T06:00:00.000Z",
    "expireDate": null,
    "organizationId": "org_1234567890abcdefghij",
    "isPaid": false,
    "paidById": null,
    "amountPaid": 0,
    "beneficiaryId": null,
    "allowOfftimePayment": false,
    "paidWithId": null,
    "canceledAt": null,
    "canceledById": null,
    "items": [
      {
        "id": "invi_1234567890abcdefghij",
        "description": "Colegiatura Enero 2025",
        "conceptId": "pc_1234567890abcdefghij",
        "concept": null,
        "quantity": 1
      }
    ],
    "meta": {
      "Ciclo Escolar": "2025-1"
    }
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}