curl --request GET \
  --url https://payments.sandbox.lerian.net/v1/boletos/{id} \
  --header 'Authorization: Bearer <token>'

package main

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

func main() {

	url := "https://payments.sandbox.lerian.net/v1/boletos/{id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://payments.sandbox.lerian.net/v1/boletos/{id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://payments.sandbox.lerian.net/v1/boletos/{id}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "amount": "<string>",
  "cancelable": true,
  "createdAt": "<string>",
  "dueDate": "<string>",
  "id": "<string>",
  "kind": "<string>",
  "payer": {
    "document": "<string>",
    "name": "<string>",
    "address": {
      "city": "<string>",
      "complement": "<string>",
      "neighborhood": "<string>",
      "number": "<string>",
      "state": "<string>",
      "street": "<string>",
      "zipCode": "<string>"
    }
  },
  "status": "<string>",
  "type": "<string>",
  "updatedAt": "<string>",
  "barcode": "<string>",
  "canceledAt": "<string>",
  "cancellationReason": "<string>",
  "digitableLine": "<string>",
  "discount": {
    "amount": "<string>",
    "limitDate": "<string>",
    "type": "<string>"
  },
  "errorMessage": "<string>",
  "failedAt": "<string>",
  "fine": {
    "amount": "<string>",
    "type": "<string>"
  },
  "guarantor": {
    "document": "<string>",
    "name": "<string>",
    "address": {
      "city": "<string>",
      "complement": "<string>",
      "neighborhood": "<string>",
      "number": "<string>",
      "state": "<string>",
      "street": "<string>",
      "zipCode": "<string>"
    }
  },
  "inactivatedAt": "<string>",
  "installmentLabel": "<string>",
  "instructions": "<string>",
  "interest": {
    "amount": "<string>",
    "type": "<string>"
  },
  "midazOperationId": "<string>",
  "providerId": "<string>",
  "qrCode": "<string>",
  "seriesId": "<string>",
  "settledAmount": "<string>",
  "settledAt": "<string>"
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

"<string>"

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}