Enviar Evidência da Disputa

Enviar evidência da disputa

curl --request PATCH \
  --url https://gateway.3xpay.co/med-contest/exposes/{medId} \
  --header 'Content-Type: multipart/form-data' \
  --header 'api_key: <api-key>' \
  --header 'api_secret: <api-key>' \
  --form file='@example-file' \
  --form 'description=<string>'

import requests

url = "https://gateway.3xpay.co/med-contest/exposes/{medId}"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = { "description": "<string>" }
headers = {
    "api_key": "<api-key>",
    "api_secret": "<api-key>"
}

response = requests.patch(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('description', '<string>');

const options = {method: 'PATCH', headers: {api_key: '<api-key>', api_secret: '<api-key>'}};

options.body = form;

fetch('https://gateway.3xpay.co/med-contest/exposes/{medId}', 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.3xpay.co/med-contest/exposes/{medId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data",
    "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.3xpay.co/med-contest/exposes/{medId}"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

	req.Header.Add("api_key", "<api-key>")
	req.Header.Add("api_secret", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://gateway.3xpay.co/med-contest/exposes/{medId}")
  .header("api_key", "<api-key>")
  .header("api_secret", "<api-key>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway.3xpay.co/med-contest/exposes/{medId}")

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

request = Net::HTTP::Patch.new(url)
request["api_key"] = '<api-key>'
request["api_secret"] = '<api-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--"

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

{
  "id": 1024,
  "transactionId": 50231,
  "status": "WAITING_CONTENT",
  "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"
}

PATCH

med-contest

exposes

{medId}

Enviar evidência da disputa

curl --request PATCH \
  --url https://gateway.3xpay.co/med-contest/exposes/{medId} \
  --header 'Content-Type: multipart/form-data' \
  --header 'api_key: <api-key>' \
  --header 'api_secret: <api-key>' \
  --form file='@example-file' \
  --form 'description=<string>'

import requests

url = "https://gateway.3xpay.co/med-contest/exposes/{medId}"

files = { "file": ("example-file", open("example-file", "rb")) }
payload = { "description": "<string>" }
headers = {
    "api_key": "<api-key>",
    "api_secret": "<api-key>"
}

response = requests.patch(url, data=payload, files=files, headers=headers)

print(response.text)

const form = new FormData();
form.append('file', '<string>');
form.append('description', '<string>');

const options = {method: 'PATCH', headers: {api_key: '<api-key>', api_secret: '<api-key>'}};

options.body = form;

fetch('https://gateway.3xpay.co/med-contest/exposes/{medId}', 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.3xpay.co/med-contest/exposes/{medId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--",
  CURLOPT_HTTPHEADER => [
    "Content-Type: multipart/form-data",
    "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.3xpay.co/med-contest/exposes/{medId}"

	payload := strings.NewReader("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--")

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

	req.Header.Add("api_key", "<api-key>")
	req.Header.Add("api_secret", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.patch("https://gateway.3xpay.co/med-contest/exposes/{medId}")
  .header("api_key", "<api-key>")
  .header("api_secret", "<api-key>")
  .body("-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://gateway.3xpay.co/med-contest/exposes/{medId}")

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

request = Net::HTTP::Patch.new(url)
request["api_key"] = '<api-key>'
request["api_secret"] = '<api-key>'
request.body = "-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"file\"; filename=\"example-file\"\r\nContent-Type: application/octet-stream\r\n\r\n<string>\r\n-----011000010111000001101001\r\nContent-Disposition: form-data; name=\"description\"\r\n\r\n<string>\r\n-----011000010111000001101001--"

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

{
  "id": 1024,
  "transactionId": 50231,
  "status": "WAITING_CONTENT",
  "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"
}

Envia o arquivo de evidência e a descrição da defesa para o medId indicado. Internamente, o gateway encaminha a defesa ao PSP upstream.

Pode ser chamado mais de uma vez para anexar evidências adicionais — a última prevalece no campo content.

Status final retornado

O status na resposta indica o resultado imediato do envio:

Status	Significado
`DEFENSE_SUBMITTED`	Defesa entregue ao PSP com sucesso (caminho feliz).
`DEFENSE_FAILED`	O PSP rejeitou o envio (erro de transporte/4xx). Detalhes em `last_error`. Pode chamar o PATCH novamente para tentar outra evidência.
`REQUESTED`	O PSP da transação ainda não tem caminho server-to-server suportado (hoje apenas Woovi). Nesses casos o time interno é notificado e acompanha manualmente.

Exemplo cURL

curl -X PATCH "https://gateway.3xpay.co/med-contest/exposes/1024" \
  -H "api_key: SUA_API_KEY" \
  -H "api_secret: SEU_API_SECRET" \
  -F "file=@/caminho/comprovante.pdf" \
  -F "description=Comprovante de pagamento original emitido pelo nosso PSP."

O arquivo tem tamanho máximo de 10 MB e a descrição até 2000 caracteres. Ambos os campos são obrigatórios.

Authorizations

api_key

string

header

required

api_secret

string

header

required

Path Parameters

medId

integer

required

ID numérico da disputa.

Body

multipart/form-data

file

required

Documento de evidência (PDF, imagem, etc.). Tamanho máximo: 10 MB.

description

string

required

Descrição/texto da defesa. Máximo 2000 caracteres.

Maximum string length: 2000

Response

Evidência registrada 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"

API Documentation

Sub-accounts API

Endpoint Examples

MED (Contestação de Devolução)

Webhooks

Enviar Evidência da Disputa

Status final retornado

Exemplo cURL

Authorizations

Path Parameters

Body

Response

​Status final retornado

​Exemplo cURL

Authorizations

Path Parameters

Body

Response

Status final retornado

Exemplo cURL