🚀 Features

A modern, production-ready TypeScript SDK for Brasil API with comprehensive coverage of all 33 endpoints:

• ✅ 100% TypeScript - Full type safety with comprehensive type definitions
• 🔄 Automatic Retries - Smart retry logic with exponential backoff
• 🛡️ Error Handling - Custom error types for better error management
• 📦 Zero Dependencies - Uses native Node.js fetch (Node 18+)
• 🌳 Tree-Shakeable - Optimized ESM and CommonJS builds
• 🧪 100% Tested - Comprehensive test coverage with Jest
• 🚀 Modern - Built with latest TypeScript and modern tooling
• 📚 Well Documented - Extensive examples and API reference

📡 All Brasil API Endpoints (33/33)

📦 Installation

npm install brasilapi-sdk

Requirements: Node.js >= 18.0.0 (for native fetch support)

🎯 Quick Start

import BrasilAPI from 'brasilapi-sdk';

// Query a postal code
const address = await BrasilAPI.cep().getCep('05010-000');
console.log(address.city); // "São Paulo"

// Get company information
const company = await BrasilAPI.cnpj().getCnpj('19.131.243/0001-97');
console.log(company.razao_social); // "OPEN KNOWLEDGE BRASIL"

// Get national holidays
const holidays = await BrasilAPI.feriados().getFeriadosByAno(2024);
console.log(holidays[0].name); // "Confraternização mundial"

📚 Documentation

CEP (Postal Code)

Query Brazilian postal codes with automatic fallback between providers.

import { cep } from 'brasilapi-sdk';

// Basic CEP lookup
const result = await cep().getCep('05010-000');
console.log(result);
// {
//   cep: "05010000",
//   state: "SP",
//   city: "São Paulo",
//   neighborhood: "Perdizes",
//   street: "Rua Caiubi"
// }

// CEP V2 with geolocation
const resultV2 = await cep().getCepV2('05010000');
console.log(resultV2.location);
// {
//   type: "Point",
//   coordinates: {
//     longitude: "-46.6753",
//     latitude: "-23.5358"
//   }
// }

CNPJ (Company Registry)

Get complete company information from Receita Federal.

import { cnpj } from 'brasilapi-sdk';

const company = await cnpj().getCnpj('19.131.243/0001-97');

console.log(company.razao_social); // Company name
console.log(company.qsa); // Partners/shareholders
console.log(company.cnaes_secundarios); // Secondary activities

Banks

List all Brazilian banks or get specific bank information.

import { banks } from 'brasilapi-sdk';

// List all banks
const allBanks = await banks().getBanks();

// Get specific bank
const bb = await banks().getBankByCode(1);
console.log(bb.fullName); // "Banco do Brasil S.A."

DDD (Area Code)

import { ddd } from 'brasilapi-sdk';

const info = await ddd().getDDD(11);
console.log(info.state); // "SP"
console.log(info.cities); // ["São Paulo", "Guarulhos", ...]

National Holidays

import { feriados } from 'brasilapi-sdk';

const holidays = await feriados().getFeriadosByAno(2024);

holidays.forEach(holiday => {
  console.log(`${holiday.date}: ${holiday.name}`);
});

FIPE (Vehicle Prices)

import { fipe } from 'brasilapi-sdk';

const fipeModule = fipe();

// List reference tables
const tables = await fipeModule.getTabelaFipe();

// List car brands
const brands = await fipeModule.getMarcas('carros');

// List vehicles for a brand
const vehicles = await fipeModule.getVeiculos('carros', 59);

// Get vehicle price
const prices = await fipeModule.getPrecoVeiculo('001004-9');
console.log(prices[0].valor); // "R$ 6.022,00"

IBGE (Geographic Data)

import { ibge } from 'brasilapi-sdk';

const ibgeModule = ibge();

// List all states
const states = await ibgeModule.getEstados();

// Get specific state
const sp = await ibgeModule.getEstadoBySigla('SP');

// List municipalities
const cities = await ibgeModule.getMunicipios('SP');

Currency Exchange

import { cambio } from 'brasilapi-sdk';

const cambioModule = cambio();

// List available currencies
const currencies = await cambioModule.getMoedas();

// Get exchange rate
const rate = await cambioModule.getCotacao('USD', '2024-03-07');
console.log(rate.cotacoes[0].cotacao_compra); // 5.7702

Stock Brokers

import { corretoras } from 'brasilapi-sdk';

const corretorasModule = corretoras();

// List all brokers
const all = await corretorasModule.getCorretoras();

// Get specific broker
const xp = await corretorasModule.getCorretoraByCode('02332886000104');

Weather (CPTEC)

import { cptec } from 'brasilapi-sdk';

const cptecModule = cptec();

// Search cities
const cities = await cptecModule.buscarCidade('São Paulo');

// Current weather in capitals
const capitals = await cptecModule.getClimaCapitais();

// Airport weather
const airport = await cptecModule.getClimaAeroporto('SBGR');

// Weather forecast (up to 6 days)
const forecast = await cptecModule.getPrevisaoCidade(244, 6);

// Ocean forecast
const ocean = await cptecModule.getPrevisaoOceano(241, 3);

Book Information (ISBN)

import { isbn } from 'brasilapi-sdk';

const book = await isbn().getIsbn('9788545702870');

console.log(book.title); // Book title
console.log(book.authors); // Authors array
console.log(book.publisher); // Publisher name

NCM Codes

import { ncm } from 'brasilapi-sdk';

const ncmModule = ncm();

// Get specific NCM
const code = await ncmModule.getNcm('01012100');

// Search NCM
const results = await ncmModule.searchNcm('café');

// List all NCM codes
const all = await ncmModule.getAllNcm();

PIX Participants

import { pix } from 'brasilapi-sdk';

const participants = await pix().getParticipantes();

Domain Status (.br)

import { registroBr } from 'brasilapi-sdk';

const domain = await registroBr().getDomainStatus('google.com.br');
console.log(domain.status); // Domain status

Interest Rates

import { taxas } from 'brasilapi-sdk';

const taxasModule = taxas();

// Get specific rate
const selic = await taxasModule.getTaxa('selic');

// List all rates
const all = await taxasModule.getAllTaxas();

🔧 Error Handling

The SDK provides custom error types for better error management:

import { 
  cep, 
  NotFoundError, 
  ValidationError, 
  NetworkError 
} from 'brasilapi-sdk';

try {
  const result = await cep().getCep('00000000');
} catch (error) {
  if (error instanceof NotFoundError) {
    console.error('❌ CEP not found');
  } else if (error instanceof ValidationError) {
    console.error('❌ Invalid CEP format');
  } else if (error instanceof NetworkError) {
    console.error('❌ Network error occurred');
  } else {
    console.error('❌ Unexpected error:', error);
  }
}

Available Error Types

⚙️ Advanced Configuration

The SDK uses automatic retry logic with exponential backoff:

import { BrasilAPIClient } from 'brasilapi-sdk';

const client = new BrasilAPIClient();

// Customize retry behavior
const data = await client.get('/cep/v1/05010000', {
  retries: 5,        // Number of retries (default: 3)
  retryDelay: 2000   // Initial delay in ms (default: 1000)
});

🧪 Testing

# Run all tests
npm test

# Run tests with coverage
npm run coverage

# Run tests in watch mode
npm run test:watch

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Run tests (npm test)
4. Commit your changes (git commit -m 'Add some AmazingFeature')
5. Push to the branch (git push origin feature/AmazingFeature)
6. Open a Pull Request

See CONTRIBUTING.md for detailed guidelines.

📝 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Brasil API - The amazing free API that makes this SDK possible
• All contributors who have helped improve this package

🔗 Links

• 📚 Brasil API Documentation
• 📦 NPM Package
• 🐙 GitHub Repository
• 🐛 Report Issues
• 📖 Migration Guide v1→v2
• 📝 Changelog

📊 Package Stats