curl --request POST \
  --url https://api.malga.io/v1/merchants \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --header 'X-Client-Id: <api-key>' \
  --data '
{
  "mcc": "4040",
  "status": true,
  "providers": [
    {
      "name": "PagSeguro",
      "priority": 1,
      "credentials": {
        "type": "PAGSEGURO",
        "token": "1B2B32530CA24641324AB63843240F5633",
        "email": "email@gmail.com"
      },
      "acquirer": {
        "merchantId": "1111111111",
        "bin": [
          {
            "brand": "Mastercard",
            "value": "550259",
            "merchantId": "2222222222"
          },
          {
            "brand": "Visa",
            "value": "448768",
            "merchantId": "3333333333"
          }
        ]
      }
    }
  ]
}
'

const options = {
  method: 'POST',
  headers: {
    'X-Client-Id': '<api-key>',
    'X-Api-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    mcc: '4040',
    status: true,
    providers: [
      {
        name: 'PagSeguro',
        priority: 1,
        credentials: {
          type: 'PAGSEGURO',
          token: '1B2B32530CA24641324AB63843240F5633',
          email: 'email@gmail.com'
        },
        acquirer: {
          merchantId: '1111111111',
          bin: [
            {brand: 'Mastercard', value: '550259', merchantId: '2222222222'},
            {brand: 'Visa', value: '448768', merchantId: '3333333333'}
          ]
        }
      }
    ]
  })
};

fetch('https://api.malga.io/v1/merchants', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.malga.io/v1/merchants"

	payload := strings.NewReader("{\n  \"mcc\": \"4040\",\n  \"status\": true,\n  \"providers\": [\n    {\n      \"name\": \"PagSeguro\",\n      \"priority\": 1,\n      \"credentials\": {\n        \"type\": \"PAGSEGURO\",\n        \"token\": \"1B2B32530CA24641324AB63843240F5633\",\n        \"email\": \"email@gmail.com\"\n      },\n      \"acquirer\": {\n        \"merchantId\": \"1111111111\",\n        \"bin\": [\n          {\n            \"brand\": \"Mastercard\",\n            \"value\": \"550259\",\n            \"merchantId\": \"2222222222\"\n          },\n          {\n            \"brand\": \"Visa\",\n            \"value\": \"448768\",\n            \"merchantId\": \"3333333333\"\n          }\n        ]\n      }\n    }\n  ]\n}")

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

	req.Header.Add("X-Client-Id", "<api-key>")
	req.Header.Add("X-Api-Key", "<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))

}

{
  "id": "69aea152-ba70-49a3-a31c-044ac1651146",
  "updatedAt": "2021-03-12T15:57:20.239Z",
  "createdAt": "2021-03-12T15:57:20.239Z",
  "clientId": "523afbe7-36dc-4654-9dba-e7167d0e5e2d",
  "mcc": "4040",
  "status": true,
  "platformFeeEnabled": true,
  "platformFees": [
    {
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "paymentMethod": "credit",
      "percentage": 2.5,
      "fixedAmount": null,
      "installment": null,
      "createdAt": "2021-03-12T15:57:20.239Z",
      "updatedAt": "2021-03-12T15:57:20.239Z"
    },
    {
      "id": "b2c3d4e5-f6a7-8901-bcde-f12345678901",
      "paymentMethod": "pix",
      "percentage": null,
      "fixedAmount": 50,
      "installment": null,
      "createdAt": "2021-03-12T15:57:20.239Z",
      "updatedAt": "2021-03-12T15:57:20.239Z"
    }
  ],
  "providers": [
    {
      "id": "72cc1ff1-5f6e-4eb2-9cc5-6a3a85525e4b",
      "updatedAt": "2021-03-12T15:57:20.239Z",
      "createdAt": "2021-03-12T15:57:20.239Z",
      "name": "PagSeguro",
      "priority": 1,
      "credentials": {
        "type": "PAGSEGURO",
        "token": "1B2B32530CA23412AB63843240F5633",
        "email": "email@gmail.com"
      },
      "acquirer": {
        "merchantId": "1111111111",
        "bin": [
          {
            "brand": "Mastercard",
            "value": "550259",
            "merchantId": "2222222222"
          },
          {
            "brand": "Visa",
            "value": "448768",
            "merchantId": "3333333333"
          }
        ]
      }
    }
  ]
}