Deploying BRX Applications

This guide covers best practices and strategies for deploying BRX applications to production environments. Whether you’re building a simple API integration or a complex AI application, these guidelines will help you deploy your BRX applications reliably and securely.

Deployment Considerations

When deploying BRX applications, consider the following factors:

Environment Management

Development: For building and testing new features
Staging: For pre-production testing in a production-like environment
Production: For serving real users

Each environment should have its own:

BRX API keys
Configuration settings
Resource allocations
Monitoring setup

API Key Management

BRX API keys should be managed securely:

Use different API keys for different environments
Restrict API key permissions based on the principle of least privilege
Rotate API keys regularly
Never hardcode API keys in your application code
Use environment variables or a secure key management service

Example using environment variables:

import BRX from 'brx-node';

// Load API key from environment variable
const apiKey = process.env.BRX_API_KEY;
if (!apiKey) {
  throw new Error('BRX_API_KEY environment variable is required');
}

// Initialize BRX client
const brx = new BRX(apiKey);

Resource Planning

Plan your resource needs based on:

Expected request volume
Complexity of your BRKs
Response time requirements
Budget constraints

Consider implementing:

Caching for frequently used BRK results
Rate limiting to prevent abuse
Horizontal scaling for handling increased load

Deployment Architectures

Serverless Deployment

Serverless deployment is ideal for event-driven BRX applications with variable load:

AWS Lambda Example

// handler.js
import BRX, { BRK } from 'brx-node';

export const handler = async (event) => {
  try {
    // Initialize BRX client
    const brx = new BRX(process.env.BRX_API_KEY);
    
    // Parse request
    const { brkId, inputs } = JSON.parse(event.body);
    
    // Fetch BRK schema
    const brkSchema = await brx.get(brkId);
    const myBrk = new BRK(brkSchema);
    
    // Set inputs
    for (const [key, value] of Object.entries(inputs)) {
      myBrk.input[key] = value;
    }
    
    // Execute BRK
    const result = await brx.run(myBrk);
    
    // Return response
    return {
      statusCode: 200,
      body: JSON.stringify({
        success: true,
        result: result[0].brxRes.output
      })
    };
  } catch (error) {
    return {
      statusCode: 500,
      body: JSON.stringify({
        success: false,
        error: error.message
      })
    };
  }
};

Serverless Framework Configuration

# serverless.yml
service: brx-application

provider:
  name: aws
  runtime: nodejs14.x
  environment:
    BRX_API_KEY: ${env:BRX_API_KEY}

functions:
  executeBrk:
    handler: handler.handler
    events:
      - http:
          path: execute
          method: post
          cors: true

Container-Based Deployment

Container-based deployment is suitable for more complex BRX applications:

Dockerfile

FROM node:14-alpine

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy application code
COPY . .

# Set environment variables
ENV NODE_ENV=production

# Expose port
EXPOSE 3000

# Start application
CMD ["node", "server.js"]

Docker Compose

# docker-compose.yml
version: '3'

services:
  brx-app:
    build: .
    ports:
      - "3000:3000"
    environment:
      - NODE_ENV=production
      - BRX_API_KEY=${BRX_API_KEY}
    restart: always

Traditional Server Deployment

For applications with stable load patterns, traditional server deployment may be appropriate:

Express.js Server

// server.js
import express from 'express';
import BRX, { BRK } from 'brx-node';

const app = express();
const port = process.env.PORT || 3000;

// Initialize BRX client
const brx = new BRX(process.env.BRX_API_KEY);

// Middleware
app.use(express.json());

// Execute BRK endpoint
app.post('/execute', async (req, res) => {
  try {
    const { brkId, inputs } = req.body;
    
    // Fetch BRK schema
    const brkSchema = await brx.get(brkId);
    const myBrk = new BRK(brkSchema);
    
    // Set inputs
    for (const [key, value] of Object.entries(inputs)) {
      myBrk.input[key] = value;
    }
    
    // Execute BRK
    const result = await brx.run(myBrk);
    
    // Return response
    res.json({
      success: true,
      result: result[0].brxRes.output
    });
  } catch (error) {
    res.status(500).json({
      success: false,
      error: error.message
    });
  }
});

// Start server
app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});

PM2 Process Management

// ecosystem.config.js
module.exports = {
  apps: [{
    name: "brx-app",
    script: "server.js",
    instances: "max",
    exec_mode: "cluster",
    env: {
      NODE_ENV: "production",
      BRX_API_KEY: process.env.BRX_API_KEY
    }
  }]
}

Continuous Integration and Deployment (CI/CD)

Implementing CI/CD for BRX applications streamlines the deployment process:

GitHub Actions Example

# .github/workflows/deploy.yml
name: Deploy BRX Application

on:
  push:
    branches: [ main ]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Use Node.js
        uses: actions/setup-node@v2
        with:
          node-version: '14'
      - run: npm ci
      - run: npm test
        env:
          BRX_API_KEY: ${{ secrets.BRX_API_KEY_TEST }}
  
  deploy:
    needs: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Deploy to AWS
        uses: serverless/github-action@v3
        with:
          args: deploy --stage prod
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          BRX_API_KEY: ${{ secrets.BRX_API_KEY_PROD }}

Deployment Stages

A typical CI/CD pipeline for BRX applications includes:

Build: Compile code, bundle assets
Test: Run unit tests, integration tests
Deploy to Staging: Deploy to a staging environment
Acceptance Testing: Run automated acceptance tests
Deploy to Production: Deploy to the production environment
Monitoring: Monitor the application for issues

Scaling Strategies

Horizontal Scaling

To handle increased load, implement horizontal scaling:

// Load balancer configuration (example for Express.js with cluster)
import cluster from 'cluster';
import os from 'os';
import express from 'express';
import BRX from 'brx-node';

const numCPUs = os.cpus().length;

if (cluster.isMaster) {
  console.log(`Master ${process.pid} is running`);

  // Fork workers
  for (let i = 0; i < numCPUs; i++) {
    cluster.fork();
  }

  cluster.on('exit', (worker) => {
    console.log(`Worker ${worker.process.pid} died`);
    cluster.fork(); // Replace the dead worker
  });
} else {
  // Workers can share any TCP connection
  const app = express();
  const port = process.env.PORT || 3000;
  
  // Initialize BRX client
  const brx = new BRX(process.env.BRX_API_KEY);
  
  // Express.js setup
  app.use(express.json());
  
  // API endpoints
  app.post('/execute', async (req, res) => {
    // BRK execution code
  });
  
  app.listen(port, () => {
    console.log(`Worker ${process.pid} started on port ${port}`);
  });
}

Caching

Implement caching to reduce API calls and improve performance:

import NodeCache from 'node-cache';
import BRX, { BRK } from 'brx-node';

// Initialize cache
const cache = new NodeCache({ stdTTL: 3600 }); // 1 hour TTL

// Initialize BRX client
const brx = new BRX(process.env.BRX_API_KEY);

// Execute BRK with caching
async function executeBrkWithCache(brkId, inputs) {
  // Create cache key
  const cacheKey = `${brkId}:${JSON.stringify(inputs)}`;
  
  // Check cache
  const cachedResult = cache.get(cacheKey);
  if (cachedResult) {
    return cachedResult;
  }
  
  // Fetch BRK schema
  const brkSchema = await brx.get(brkId);
  const myBrk = new BRK(brkSchema);
  
  // Set inputs
  for (const [key, value] of Object.entries(inputs)) {
    myBrk.input[key] = value;
  }
  
  // Execute BRK
  const result = await brx.run(myBrk);
  
  // Cache result
  cache.set(cacheKey, result);
  
  return result;
}

Rate Limiting

Implement rate limiting to prevent abuse and manage costs:

import rateLimit from 'express-rate-limit';
import express from 'express';

const app = express();

// Rate limiting middleware
const apiLimiter = rateLimit({
  windowMs: 15 * 60 * 1000, // 15 minutes
  max: 100, // limit each IP to 100 requests per windowMs
  message: 'Too many requests from this IP, please try again after 15 minutes'
});

// Apply rate limiting to API endpoints
app.post('/execute', apiLimiter, async (req, res) => {
  // BRK execution code
});

Monitoring and Logging

Logging

Implement comprehensive logging for troubleshooting:

import winston from 'winston';
import BRX, { BRK } from 'brx-node';

// Configure logger
const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  defaultMeta: { service: 'brx-app' },
  transports: [
    new winston.transports.File({ filename: 'error.log', level: 'error' }),
    new winston.transports.File({ filename: 'combined.log' })
  ]
});

// Add console transport in development
if (process.env.NODE_ENV !== 'production') {
  logger.add(new winston.transports.Console({
    format: winston.format.simple()
  }));
}

// Initialize BRX client
const brx = new BRX(process.env.BRX_API_KEY);

// Execute BRK with logging
async function executeBrkWithLogging(brkId, inputs) {
  logger.info('Executing BRK', { brkId, inputs });
  
  try {
    // Fetch BRK schema
    const brkSchema = await brx.get(brkId);
    const myBrk = new BRK(brkSchema);
    
    // Set inputs
    for (const [key, value] of Object.entries(inputs)) {
      myBrk.input[key] = value;
    }
    
    // Execute BRK
    const startTime = Date.now();
    const result = await brx.run(myBrk);
    const executionTime = Date.now() - startTime;
    
    logger.info('BRK execution successful', {
      brkId,
      executionTime,
      resultCount: result.length
    });
    
    return result;
  } catch (error) {
    logger.error('BRK execution failed', {
      brkId,
      inputs,
      error: error.message,
      stack: error.stack
    });
    
    throw error;
  }
}

Monitoring

Implement monitoring to track application health and performance:

Prometheus Metrics (with Express.js)

import express from 'express';
import promClient from 'prom-client';
import BRX from 'brx-node';

// Initialize Express app
const app = express();

// Initialize Prometheus client
const register = new promClient.Registry();
promClient.collectDefaultMetrics({ register });

// Custom metrics
const brkExecutionCounter = new promClient.Counter({
  name: 'brx_brk_executions_total',
  help: 'Total number of BRK executions',
  labelNames: ['brk_id', 'status']
});

const brkExecutionDuration = new promClient.Histogram({
  name: 'brx_brk_execution_duration_seconds',
  help: 'Duration of BRK executions in seconds',
  labelNames: ['brk_id']
});

register.registerMetric(brkExecutionCounter);
register.registerMetric(brkExecutionDuration);

// Initialize BRX client
const brx = new BRX(process.env.BRX_API_KEY);

// Metrics endpoint
app.get('/metrics', async (req, res) => {
  res.set('Content-Type', register.contentType);
  res.end(await register.metrics());
});

// Execute BRK endpoint with metrics
app.post('/execute', async (req, res) => {
  const { brkId, inputs } = req.body;
  
  const end = brkExecutionDuration.startTimer({ brk_id: brkId });
  
  try {
    // Fetch BRK schema
    const brkSchema = await brx.get(brkId);
    const myBrk = new BRK(brkSchema);
    
    // Set inputs
    for (const [key, value] of Object.entries(inputs)) {
      myBrk.input[key] = value;
    }
    
    // Execute BRK
    const result = await brx.run(myBrk);
    
    // Record metrics
    brkExecutionCounter.inc({ brk_id: brkId, status: 'success' });
    end();
    
    // Return response
    res.json({
      success: true,
      result: result[0].brxRes.output
    });
  } catch (error) {
    // Record metrics
    brkExecutionCounter.inc({ brk_id: brkId, status: 'error' });
    end();
    
    res.status(500).json({
      success: false,
      error: error.message
    });
  }
});

Health Checks

Implement health checks to monitor application status:

import express from 'express';
import BRX from 'brx-node';

const app = express();
const brx = new BRX(process.env.BRX_API_KEY);

// Basic health check
app.get('/health', (req, res) => {
  res.status(200).json({ status: 'ok' });
});

// Detailed health check
app.get('/health/detailed', async (req, res) => {
  try {
    // Check BRX API connectivity
    const testBrkSchema = await brx.get('test-brk-id');
    
    res.status(200).json({
      status: 'ok',
      details: {
        brxApi: 'connected',
        uptime: process.uptime(),
        memory: process.memoryUsage()
      }
    });
  } catch (error) {
    res.status(503).json({
      status: 'error',
      details: {
        brxApi: 'disconnected',
        error: error.message
      }
    });
  }
});

Security Best Practices

Input Validation

Validate all inputs to prevent injection attacks:

import Joi from 'joi';
import express from 'express';

const app = express();
app.use(express.json());

// Input validation middleware
const validateExecuteRequest = (req, res, next) => {
  const schema = Joi.object({
    brkId: Joi.string().required(),
    inputs: Joi.object().required()
  });
  
  const { error } = schema.validate(req.body);
  if (error) {
    return res.status(400).json({
      success: false,
      error: error.details[0].message
    });
  }
  
  next();
};

// Apply validation to endpoint
app.post('/execute', validateExecuteRequest, async (req, res) => {
  // BRK execution code
});

Authentication and Authorization

Implement proper authentication and authorization:

import express from 'express';
import jwt from 'jsonwebtoken';

const app = express();
app.use(express.json());

// Authentication middleware
const authenticate = (req, res, next) => {
  const authHeader = req.headers.authorization;
  
  if (!authHeader || !authHeader.startsWith('Bearer ')) {
    return res.status(401).json({
      success: false,
      error: 'Authentication required'
    });
  }
  
  const token = authHeader.split(' ')[1];
  
  try {
    const decoded = jwt.verify(token, process.env.JWT_SECRET);
    req.user = decoded;
    next();
  } catch (error) {
    return res.status(401).json({
      success: false,
      error: 'Invalid token'
    });
  }
};

// Authorization middleware
const authorize = (requiredRole) => (req, res, next) => {
  if (!req.user || req.user.role !== requiredRole) {
    return res.status(403).json({
      success: false,
      error: 'Insufficient permissions'
    });
  }
  
  next();
};

// Apply authentication and authorization to endpoint
app.post('/execute', authenticate, authorize('admin'), async (req, res) => {
  // BRK execution code
});

HTTPS

Always use HTTPS in production:

import express from 'express';
import https from 'https';
import fs from 'fs';

const app = express();

// Redirect HTTP to HTTPS
app.use((req, res, next) => {
  if (!req.secure && process.env.NODE_ENV === 'production') {
    return res.redirect(`https://${req.headers.host}${req.url}`);
  }
  next();
});

// HTTPS server options
const httpsOptions = {
  key: fs.readFileSync('path/to/private/key.pem'),
  cert: fs.readFileSync('path/to/certificate.pem')
};

// Create HTTPS server
https.createServer(httpsOptions, app).listen(443, () => {
  console.log('HTTPS server running on port 443');
});

// Also start HTTP server for redirect
app.listen(80, () => {
  console.log('HTTP server running on port 80');
});

Deployment Checklist

Before deploying your BRX application to production, ensure you’ve addressed the following:

Pre-Deployment

Post-Deployment

Verify application is running correctly
Check logs for errors
Monitor performance metrics
Test critical functionality
Verify security measures
Update documentation if needed
Communicate deployment to stakeholders

Conclusion

Deploying BRX applications to production requires careful planning and attention to detail. By following the best practices and strategies outlined in this guide, you can ensure your BRX applications are reliable, secure, and performant. Remember that deployment is not a one-time event but an ongoing process. Continuously monitor your application, gather feedback, and make improvements to provide the best possible experience for your users.

Get Started

Core Concepts

SDK Reference

Deployment

Deploying BRX Applications

Deployment Considerations

Environment Management

API Key Management

Resource Planning

Deployment Architectures

Serverless Deployment

AWS Lambda Example

Serverless Framework Configuration

Container-Based Deployment

Dockerfile

Docker Compose

Traditional Server Deployment

Express.js Server

PM2 Process Management

Continuous Integration and Deployment (CI/CD)

GitHub Actions Example

Deployment Stages

Scaling Strategies

Horizontal Scaling

Caching

Rate Limiting

Monitoring and Logging

Logging

Monitoring

Prometheus Metrics (with Express.js)

Health Checks

Security Best Practices

Input Validation

Authentication and Authorization

HTTPS

Deployment Checklist

Pre-Deployment

Post-Deployment

Conclusion

Get Started

Core Concepts

SDK Reference

​Deploying BRX Applications

​Deployment Considerations

​Environment Management

​API Key Management

​Resource Planning

​Deployment Architectures

​Serverless Deployment

​AWS Lambda Example

​Serverless Framework Configuration

​Container-Based Deployment

​Dockerfile

​Docker Compose

​Traditional Server Deployment

​Express.js Server

​PM2 Process Management

​Continuous Integration and Deployment (CI/CD)

​GitHub Actions Example

​Deployment Stages

​Scaling Strategies

​Horizontal Scaling

​Caching

​Rate Limiting

​Monitoring and Logging

​Logging

​Monitoring

​Prometheus Metrics (with Express.js)

​Health Checks

​Security Best Practices

​Input Validation

​Authentication and Authorization

​HTTPS

​Deployment Checklist

​Pre-Deployment

​Post-Deployment

​Conclusion

Deploying BRX Applications

Deployment Considerations

Environment Management

API Key Management

Resource Planning

Deployment Architectures

Serverless Deployment

AWS Lambda Example

Serverless Framework Configuration

Container-Based Deployment

Dockerfile

Docker Compose

Traditional Server Deployment

Express.js Server

PM2 Process Management

Continuous Integration and Deployment (CI/CD)

GitHub Actions Example

Deployment Stages

Scaling Strategies

Horizontal Scaling

Caching

Rate Limiting

Monitoring and Logging

Logging

Monitoring

Prometheus Metrics (with Express.js)

Health Checks

Security Best Practices

Input Validation

Authentication and Authorization

HTTPS

Deployment Checklist

Pre-Deployment

Post-Deployment

Conclusion