curl --request POST \
  --url https://payments.sandbox.lerian.net/v1/boletos \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amount": "100.00",
  "dueDate": "2030-01-15",
  "midazAccountId": "<string>",
  "payer": {
    "document": "<string>",
    "name": "<string>",
    "address": {
      "city": "<string>",
      "complement": "<string>",
      "neighborhood": "<string>",
      "number": "<string>",
      "state": "<string>",
      "street": "<string>",
      "zipCode": "<string>"
    }
  },
  "type": "TRADITIONAL",
  "guarantor": {
    "address": {
      "city": "<string>",
      "complement": "<string>",
      "neighborhood": "<string>",
      "number": "<string>",
      "state": "<string>",
      "street": "<string>",
      "zipCode": "<string>"
    },
    "document": "<string>",
    "name": "<string>"
  },
  "instructions": "<string>"
}
'

package main

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

func main() {

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

	payload := strings.NewReader("{\n  \"amount\": \"100.00\",\n  \"dueDate\": \"2030-01-15\",\n  \"midazAccountId\": \"<string>\",\n  \"payer\": {\n    \"document\": \"<string>\",\n    \"name\": \"<string>\",\n    \"address\": {\n      \"city\": \"<string>\",\n      \"complement\": \"<string>\",\n      \"neighborhood\": \"<string>\",\n      \"number\": \"<string>\",\n      \"state\": \"<string>\",\n      \"street\": \"<string>\",\n      \"zipCode\": \"<string>\"\n    }\n  },\n  \"type\": \"TRADITIONAL\",\n  \"guarantor\": {\n    \"address\": {\n      \"city\": \"<string>\",\n      \"complement\": \"<string>\",\n      \"neighborhood\": \"<string>\",\n      \"number\": \"<string>\",\n      \"state\": \"<string>\",\n      \"street\": \"<string>\",\n      \"zipCode\": \"<string>\"\n    },\n    \"document\": \"<string>\",\n    \"name\": \"<string>\"\n  },\n  \"instructions\": \"<string>\"\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))

}

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    amount: '100.00',
    dueDate: '2030-01-15',
    midazAccountId: '<string>',
    payer: {
      document: '<string>',
      name: '<string>',
      address: {
        city: '<string>',
        complement: '<string>',
        neighborhood: '<string>',
        number: '<string>',
        state: '<string>',
        street: '<string>',
        zipCode: '<string>'
      }
    },
    type: 'TRADITIONAL',
    guarantor: {
      address: {
        city: '<string>',
        complement: '<string>',
        neighborhood: '<string>',
        number: '<string>',
        state: '<string>',
        street: '<string>',
        zipCode: '<string>'
      },
      document: '<string>',
      name: '<string>'
    },
    instructions: '<string>'
  })
};

fetch('https://payments.sandbox.lerian.net/v1/boletos', 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"

payload = {
    "amount": "100.00",
    "dueDate": "2030-01-15",
    "midazAccountId": "<string>",
    "payer": {
        "document": "<string>",
        "name": "<string>",
        "address": {
            "city": "<string>",
            "complement": "<string>",
            "neighborhood": "<string>",
            "number": "<string>",
            "state": "<string>",
            "street": "<string>",
            "zipCode": "<string>"
        }
    },
    "type": "TRADITIONAL",
    "guarantor": {
        "address": {
            "city": "<string>",
            "complement": "<string>",
            "neighborhood": "<string>",
            "number": "<string>",
            "state": "<string>",
            "street": "<string>",
            "zipCode": "<string>"
        },
        "document": "<string>",
        "name": "<string>"
    },
    "instructions": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "amount": "<string>",
  "createdAt": "<string>",
  "dueDate": "<string>",
  "id": "<string>",
  "providerId": "<string>",
  "status": "<string>",
  "type": "<string>",
  "barcode": "<string>",
  "digitableLine": "<string>",
  "discount": {
    "amount": "<string>",
    "limitDate": "<string>",
    "type": "<string>"
  },
  "fine": {
    "amount": "<string>",
    "type": "<string>"
  },
  "instructions": "<string>",
  "interest": {
    "amount": "<string>",
    "type": "<string>"
  },
  "qrCode": "<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"
  }
}

{
  "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"
  }
}