Abrir Disputa de MED

Abrir disputa de MED

curl --request POST \
  --url https://gateway.astronpay.co/med-contest/exposes \
  --header 'Content-Type: application/json' \
  --header 'api_key: <api-key>' \
  --header 'api_secret: <api-key>' \
  --data '
{
  "transaction_id": "01a51b3e-e17d-45eb-b8a2-e2392b6b1b28"
}
'

import requests

url = "https://gateway.astronpay.co/med-contest/exposes"

payload = { "transaction_id": "01a51b3e-e17d-45eb-b8a2-e2392b6b1b28" }
headers = {
    "api_key": "<api-key>",
    "api_secret": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    api_key: '<api-key>',
    api_secret: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({transaction_id: '01a51b3e-e17d-45eb-b8a2-e2392b6b1b28'})
};

fetch('https://gateway.astronpay.co/med-contest/exposes', 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://gateway.astronpay.co/med-contest/exposes",
  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([
    'transaction_id' => '01a51b3e-e17d-45eb-b8a2-e2392b6b1b28'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "api_key: <api-key>",
    "api_secret: <api-key>"
  ],
]);

$response = curl_exec($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://gateway.astronpay.co/med-contest/exposes"

	payload := strings.NewReader("{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}")

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

	req.Header.Add("api_key", "<api-key>")
	req.Header.Add("api_secret", "<api-key>")
	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://gateway.astronpay.co/med-contest/exposes")
  .header("api_key", "<api-key>")
  .header("api_secret", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway.astronpay.co/med-contest/exposes")

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

request = Net::HTTP::Post.new(url)
request["api_key"] = '<api-key>'
request["api_secret"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}"

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

{
  "id": 1024,
  "transactionId": 50231,
  "content": "https://s3.../comprovante.pdf",
  "description": "Comprovante de pagamento original.",
  "external_med_id": "dispute_8f3a...",
  "processor_name": "woovi",
  "retry_count": 0,
  "last_error": "<string>",
  "created_at": "2026-05-12T10:30:00.000Z",
  "updated_at": "2026-05-12T10:30:00.000Z"
}

POST

med-contest

exposes

Abrir disputa de MED

curl --request POST \
  --url https://gateway.astronpay.co/med-contest/exposes \
  --header 'Content-Type: application/json' \
  --header 'api_key: <api-key>' \
  --header 'api_secret: <api-key>' \
  --data '
{
  "transaction_id": "01a51b3e-e17d-45eb-b8a2-e2392b6b1b28"
}
'

import requests

url = "https://gateway.astronpay.co/med-contest/exposes"

payload = { "transaction_id": "01a51b3e-e17d-45eb-b8a2-e2392b6b1b28" }
headers = {
    "api_key": "<api-key>",
    "api_secret": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    api_key: '<api-key>',
    api_secret: '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({transaction_id: '01a51b3e-e17d-45eb-b8a2-e2392b6b1b28'})
};

fetch('https://gateway.astronpay.co/med-contest/exposes', 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://gateway.astronpay.co/med-contest/exposes",
  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([
    'transaction_id' => '01a51b3e-e17d-45eb-b8a2-e2392b6b1b28'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "api_key: <api-key>",
    "api_secret: <api-key>"
  ],
]);

$response = curl_exec($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://gateway.astronpay.co/med-contest/exposes"

	payload := strings.NewReader("{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}")

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

	req.Header.Add("api_key", "<api-key>")
	req.Header.Add("api_secret", "<api-key>")
	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://gateway.astronpay.co/med-contest/exposes")
  .header("api_key", "<api-key>")
  .header("api_secret", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway.astronpay.co/med-contest/exposes")

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

request = Net::HTTP::Post.new(url)
request["api_key"] = '<api-key>'
request["api_secret"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transaction_id\": \"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28\"\n}"

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

{
  "id": 1024,
  "transactionId": 50231,
  "content": "https://s3.../comprovante.pdf",
  "description": "Comprovante de pagamento original.",
  "external_med_id": "dispute_8f3a...",
  "processor_name": "woovi",
  "retry_count": 0,
  "last_error": "<string>",
  "created_at": "2026-05-12T10:30:00.000Z",
  "updated_at": "2026-05-12T10:30:00.000Z"
}

Cria o registro inicial da contestação para uma transação em estado de MED. Após esta chamada o status fica em WAITING_CONTENT aguardando o upload da evidência via PATCH /med-contest/exposes/{medId}.

O id retornado nesta resposta é o medId usado nos endpoints subsequentes (detalhe e envio de evidência).

Importante: o transaction_id aqui é o UUID recebido no webhook de infração (com transactionStatus = "MED"), não o ID numérico interno.

Authorizations

api_key

string

header

required

api_secret

string

header

required

Body

application/json

transaction_id

string<uuid>

required

UUID da transação contestada, recebido no webhook IN com transactionStatus = MED.

Example:

"01a51b3e-e17d-45eb-b8a2-e2392b6b1b28"

Response

Disputa criada com sucesso

Registro da disputa de MED. O campo id é o medId usado nos demais endpoints.

integer

ID numérico da disputa (medId).

Example:

1024

transactionId

integer

ID interno da transação relacionada.

Example:

50231

status

enum<string>

Status do registro de disputa.

Available options:

WAITING_CONTENT,

REQUESTED,

DEFENSE_SUBMITTED,

DEFENSE_FAILED,

APPROVED,

REJECTED,

REFUNDED,

CANCELLED

content

string | null

URL do arquivo de evidência armazenado. null enquanto a evidência não foi enviada.

Example:

"https://s3.../comprovante.pdf"

description

string | null

Descrição/texto da defesa enviada com a evidência.

Example:

"Comprovante de pagamento original."

external_med_id

string | null

ID da disputa no PSP upstream (preenchido após o envio).

Example:

"dispute_8f3a..."

processor_name

string | null

Nome do PSP upstream que recebeu a defesa.

Example:

"woovi"

retry_count

integer

Quantidade de tentativas de envio.

Example:

0

last_error

string | null

Mensagem do último erro de transporte, se houver.

created_at

string<date-time>

Example:

"2026-05-12T10:30:00.000Z"

updated_at

string<date-time>

Example:

"2026-05-12T10:30:00.000Z"

Comprovante da Transação:Enviar Evidência da Disputa

Introdução

Banking as a Service (BaaS)

API Documentation

Transações

MED (Contestação de Devolução)

Sub-accounts API

Webhooks

Abrir Disputa de MED

Authorizations

Body

Response