# 🚀 avx-http - ROADMAP TO WORLD-CLASS
## **Estado Atual (v0.1.0):**
- ✅ Client + Server básico (HTTP/1.1)
- ✅ 17 testes passando
- ✅ Tokio async
- ✅ Publicado em crates.io
---
## **🎯 ROADMAP PARA WORLD-CLASS**
### **FASE 1: HTTP/1.1 Completo (v0.2.0) - 2 semanas**
#### **1.1 Connection Pooling**
```rust
pub struct ConnectionPool {
max_connections: usize,
idle_timeout: Duration,
connections: HashMap<String, Vec<TcpStream>>,
}
impl ConnectionPool {
pub async fn get_connection(&mut self, host: &str) -> Result<TcpStream> {
// Reusar conexões TCP (10x latency reduction)
if let Some(conn) = self.connections.get_mut(host).and_then(|v| v.pop()) {
return Ok(conn);
}
// Create new connection
let conn = TcpStream::connect(host).await?;
Ok(conn)
}
pub fn return_connection(&mut self, host: String, conn: TcpStream) {
// Return to pool for reuse
self.connections.entry(host).or_default().push(conn);
}
}
```
**Benefits:**
- 10x latency reduction (skip TCP handshake)
- Handle thousands of requests efficiently
- Automatic connection cleanup
---
#### **1.2 Streaming Bodies**
```rust
pub struct StreamingResponse {
stream: Pin<Box<dyn Stream<Item = Result<Bytes>>>>,
}
impl StreamingResponse {
pub async fn next_chunk(&mut self) -> Option<Result<Bytes>> {
self.stream.next().await
}
}
// Chunked transfer encoding
pub fn stream_response(&self, url: &str) -> Result<StreamingResponse> {
// Read body in chunks (not all at once)
// Perfect for large files
}
// Server-Sent Events (SSE)
pub async fn sse_endpoint(req: Request) -> Response {
let stream = async_stream::stream! {
loop {
yield format!("data: {}\n\n", get_update());
tokio::time::sleep(Duration::from_secs(1)).await;
}
};
Response::builder()
.header("Content-Type", "text/event-stream")
.body(Body::from_stream(stream))
}
```
---
#### **1.3 Middleware System**
```rust
#[async_trait]
pub trait Middleware: Send + Sync {
async fn handle(&self, req: Request, next: Next) -> Response;
}
pub struct Next {
middleware: Vec<Box<dyn Middleware>>,
handler: Box<dyn Handler>,
}
pub struct App {
middleware: Vec<Box<dyn Middleware>>,
router: Router,
}
impl App {
pub fn use_middleware<M: Middleware + 'static>(&mut self, m: M) {
self.middleware.push(Box::new(m));
}
}
// Example middlewares:
pub struct Logger;
pub struct Auth;
pub struct Cors;
pub struct RateLimit;
```
---
#### **1.4 Request/Response Interceptors**
```rust
pub struct Client {
interceptors: Interceptors,
}
pub struct Interceptors {
request: Vec<Box<dyn Fn(&mut Request)>>,
response: Vec<Box<dyn Fn(&Response)>>,
}
impl Client {
pub fn on_request(&mut self, f: impl Fn(&mut Request) + 'static) {
self.interceptors.request.push(Box::new(f));
}
pub fn on_response(&mut self, f: impl Fn(&Response) + 'static) {
self.interceptors.response.push(Box::new(f));
}
}
// Usage:
let mut client = Client::new();
client.on_request(|req| {
req.headers.insert("User-Agent", "avx-http/0.2.0");
});
client.on_response(|resp| {
println!("Status: {}", resp.status);
});
```
---
### **FASE 2: HTTP/2 (v0.3.0) - 3 semanas** ⚡ **PRIORIDADE ALTA**
```rust
pub mod http2 {
// MULTIPLEXING: múltiplos requests em 1 conexão
pub struct Http2Client {
connection: Http2Connection,
streams: HashMap<u32, Stream>,
}
impl Http2Client {
pub async fn new(host: &str) -> Result<Self> {
// HTTP/2 connection preface
// Send SETTINGS frame
}
pub async fn request(&mut self, req: Request) -> Result<Response> {
// Create new stream
let stream_id = self.next_stream_id();
// Send HEADERS frame
self.send_headers(stream_id, &req).await?;
// Send DATA frames (if body)
if let Some(body) = req.body {
self.send_data(stream_id, body).await?;
}
// Receive response (may be interleaved with other streams)
self.receive_response(stream_id).await
}
}
// HPACK (header compression)
pub struct HpackEncoder {
dynamic_table: Vec<(String, String)>,
static_table: &'static [(String, String)],
}
impl HpackEncoder {
pub fn encode(&mut self, headers: &Headers) -> Vec<u8> {
// Compress headers using HPACK
// 50% header size reduction
}
}
// Stream prioritization
pub struct StreamPriority {
weight: u8,
depends_on: Option<u32>,
}
// Server push
pub async fn handle_server_push(&mut self, push_promise: PushPromise) {
// Handle pushed resources
}
}
```
**Benefits:**
- 50% latency reduction vs HTTP/1.1
- 10x concurrent requests on single connection
- Header compression (HPACK)
- Server push (preload resources)
**Algoritmos necessários:**
1. **HPACK** (header compression)
2. **Stream prioritization**
3. **Flow control**
4. **Frame parsing** (HEADERS, DATA, SETTINGS, etc.)
---
### **FASE 3: HTTP/3 + QUIC (v0.4.0) - 6 semanas**
```rust
pub mod http3 {
// CUTTING-EDGE: UDP-based, 0-RTT
pub struct Http3Client {
quic_connection: QuicConnection,
control_stream: QuicStream,
qpack_encoder: QpackEncoder,
}
impl Http3Client {
pub async fn connect(host: &str) -> Result<Self> {
// QUIC handshake
// 0-RTT if resuming previous connection
let quic_conn = QuicConnection::connect(host).await?;
// Create control stream (stream ID 0)
let control_stream = quic_conn.open_uni().await?;
Ok(Self {
quic_connection: quic_conn,
control_stream,
qpack_encoder: QpackEncoder::new(),
})
}
pub async fn request(&mut self, req: Request) -> Result<Response> {
// Open new bidirectional stream
let mut stream = self.quic_connection.open_bi().await?;
// Send HEADERS frame (QPACK compressed)
let headers = self.qpack_encoder.encode(&req.headers);
stream.write_frame(Frame::Headers(headers)).await?;
// Send DATA frame
if let Some(body) = req.body {
stream.write_frame(Frame::Data(body)).await?;
}
// Receive response
self.receive_response(&mut stream).await
}
}
// QUIC implementation (or use quinn crate)
pub struct QuicConnection {
// UDP socket
// Congestion control (BBR)
// Loss detection & recovery
// Connection migration
}
// QPACK (header compression for HTTP/3)
pub struct QpackEncoder {
dynamic_table: Vec<(String, String)>,
}
}
```
**Por que HTTP/3:**
- 📱 **Mobile**: 30% faster em 4G/5G
- 🌎 **LATAM**: Resilient a packet loss
- 🚀 **0-RTT**: Conexão instantânea (resumption)
- 🔄 **Connection migration**: IP change sem disconnect
**Implementação:**
- Usar **quinn** (QUIC em Rust) - mais rápido
- Ou implementar from scratch (hero mode 🦸) - mais controle
---
### **FASE 4: Telemetria (v0.5.0) - 3 semanas**
```rust
pub mod telemetry {
// OBSERVABILIDADE built-in
pub struct Metrics {
pub requests_total: AtomicU64,
pub requests_by_status: HashMap<u16, AtomicU64>,
pub request_duration_ms: Histogram,
pub bytes_sent: AtomicU64,
pub bytes_received: AtomicU64,
pub active_connections: AtomicUsize,
}
impl Metrics {
pub fn record_request(&self, status: u16, duration_ms: u64, bytes: usize) {
self.requests_total.fetch_add(1, Ordering::Relaxed);
self.requests_by_status.entry(status)
.or_default()
.fetch_add(1, Ordering::Relaxed);
self.request_duration_ms.record(duration_ms);
self.bytes_received.fetch_add(bytes, Ordering::Relaxed);
}
}
// OpenTelemetry integration
pub fn export_prometheus(&self) -> String {
format!(
"http_requests_total {}\n\
http_request_duration_seconds_sum {}\n\
http_bytes_received_total {}\n",
self.requests_total.load(Ordering::Relaxed),
self.request_duration_ms.sum() / 1000.0,
self.bytes_received.load(Ordering::Relaxed),
)
}
pub fn export_otel(&self) -> Vec<OtelMetric> {
// Export to OpenTelemetry format
}
// Distributed tracing
pub struct Span {
trace_id: u128,
span_id: u64,
parent_span_id: Option<u64>,
start_time: Instant,
attributes: HashMap<String, String>,
}
impl Span {
pub fn new_trace() -> Self {
Self {
trace_id: rand::random(),
span_id: rand::random(),
parent_span_id: None,
start_time: Instant::now(),
attributes: HashMap::new(),
}
}
pub fn child(&self) -> Self {
Self {
trace_id: self.trace_id,
span_id: rand::random(),
parent_span_id: Some(self.span_id),
start_time: Instant::now(),
attributes: HashMap::new(),
}
}
}
}
```
**Integrations:**
- Prometheus (metrics)
- Grafana (dashboards)
- Jaeger (distributed tracing)
- AvilaDB (store metrics long-term)
---
### **FASE 5: Brazilian Optimization (v0.6.0) - 2 semanas**
```rust
pub mod latam {
// OTIMIZADO para infraestrutura brasileira
#[derive(Clone)]
pub enum Region {
SaoPaulo,
RioDeJaneiro,
BuenosAires,
Santiago,
BogotaC,
}
pub struct BrazilianClient {
regions: Vec<Region>,
current_region: usize,
compression: CompressionLevel,
}
impl BrazilianClient {
pub fn new() -> Self {
Self {
regions: vec![
Region::SaoPaulo,
Region::RioDeJaneiro,
Region::BuenosAires,
],
current_region: 0,
compression: CompressionLevel::High, // 3G/4G optimization
}
}
pub async fn request_with_regional_fallback(
&mut self,
path: &str,
) -> Result<Response> {
// Try regions in order
for (i, region) in self.regions.iter().enumerate() {
let url = format!("https://{}.avila.cloud{}", region.domain(), path);
match self.request(&url).await {
Ok(resp) if resp.status.is_success() => {
// Update preferred region
self.current_region = i;
return Ok(resp);
}
Err(_) => continue, // Try next region
Ok(resp) => return Ok(resp), // Return error response
}
}
Err(Error::AllRegionsFailed)
}
// Connection warm-up para first-byte latency
pub async fn warmup_connections(&mut self, urls: &[&str]) {
for url in urls {
// Pre-establish connections
let _ = self.request(url).await;
}
}
}
impl Region {
fn domain(&self) -> &str {
match self {
Region::SaoPaulo => "sp",
Region::RioDeJaneiro => "rj",
Region::BuenosAires => "bue",
Region::Santiago => "scl",
Region::Bogota => "bog",
}
}
fn latency_estimate(&self) -> Duration {
match self {
Region::SaoPaulo => Duration::from_millis(2),
Region::RioDeJaneiro => Duration::from_millis(10),
Region::BuenosAires => Duration::from_millis(30),
Region::Santiago => Duration::from_millis(40),
Region::Bogota => Duration::from_millis(50),
}
}
}
}
```
**Benchmarks Target:**
- SP → SP: < 5ms (target: **2ms**)
- SP → RJ: < 15ms (target: **10ms**)
- SP → BUE: < 40ms (target: **30ms**)
- SP → US: < 120ms (target: **100ms**)
---
### **FASE 6: Production-Ready (v1.0.0) - 4 semanas**
#### **6.1 Security (TLS 1.3)**
```rust
pub mod security {
pub struct TlsConfig {
min_version: TlsVersion,
ciphersuites: Vec<Ciphersuite>,
verify_certificates: bool,
}
impl Default for TlsConfig {
fn default() -> Self {
Self {
min_version: TlsVersion::V1_3,
ciphersuites: vec![
Ciphersuite::TLS_AES_256_GCM_SHA384,
Ciphersuite::TLS_CHACHA20_POLY1305_SHA256,
],
verify_certificates: true,
}
}
}
// Certificate validation
pub fn validate_cert(cert: &Certificate, host: &str) -> Result<()> {
// Check expiration
// Verify chain of trust
// Check hostname
}
// Request signing (AWS-style)
pub fn sign_request(req: &Request, key: &PrivateKey) -> Signature {
// HMAC-SHA256
// Include timestamp, method, path, body
}
}
```
#### **6.2 Rate Limiting**
```rust
pub struct RateLimiter {
buckets: HashMap<String, TokenBucket>,
rate: u32,
burst: u32,
}
pub struct TokenBucket {
tokens: f64,
last_update: Instant,
}
impl RateLimiter {
pub fn check(&mut self, client_id: &str) -> Result<()> {
let bucket = self.buckets.entry(client_id.to_string())
.or_insert(TokenBucket {
tokens: self.burst as f64,
last_update: Instant::now(),
});
// Refill tokens
let elapsed = bucket.last_update.elapsed().as_secs_f64();
bucket.tokens = (bucket.tokens + elapsed * self.rate as f64)
.min(self.burst as f64);
bucket.last_update = Instant::now();
// Check if request allowed
if bucket.tokens >= 1.0 {
bucket.tokens -= 1.0;
Ok(())
} else {
Err(Error::RateLimitExceeded)
}
}
}
```
#### **6.3 HTTP Caching**
```rust
pub struct HttpCache {
cache: HashMap<String, CachedResponse>,
max_size: usize,
}
pub struct CachedResponse {
response: Response,
expires_at: Instant,
etag: Option<String>,
}
impl HttpCache {
// RFC 7234 compliant
pub fn get(&self, url: &Url) -> Option<&Response> {
self.cache.get(url.as_str())
.filter(|cached| cached.expires_at > Instant::now())
.map(|cached| &cached.response)
}
pub fn put(&mut self, url: Url, resp: Response) {
// Parse Cache-Control header
let max_age = parse_max_age(&resp);
let expires_at = Instant::now() + max_age;
self.cache.insert(url.to_string(), CachedResponse {
response: resp,
expires_at,
etag: None,
});
}
}
```
#### **6.4 WebSocket**
```rust
pub mod websocket {
pub struct WebSocket {
stream: TcpStream,
state: WebSocketState,
}
impl WebSocket {
pub async fn connect(url: &str) -> Result<Self> {
// HTTP upgrade handshake
// Sec-WebSocket-Key
// Sec-WebSocket-Accept
}
pub async fn send(&mut self, msg: Message) -> Result<()> {
// Frame message
// Apply masking (client-to-server)
// Send
}
pub async fn recv(&mut self) -> Option<Result<Message>> {
// Receive frame
// Handle fragmentation
// Handle control frames (ping/pong/close)
}
pub async fn ping(&mut self) -> Result<()> {
self.send(Message::Ping(vec![])).await
}
}
pub enum Message {
Text(String),
Binary(Vec<u8>),
Ping(Vec<u8>),
Pong(Vec<u8>),
Close(Option<CloseCode>),
}
}
```
---
## **📊 Benchmarks Finais (v1.0):**
| Throughput | 1M req/s (single-core) | Beats hyper |
| Latency (local) | < 100μs | Matches C++ |
| HTTP/2 streams | 1000+ concurrent | Industry standard |
| HTTP/3 | 0-RTT reconnect | Best-in-class |
| Memory | < 1MB per connection | 10x better than Python |
| Brazil latency | SP→SP: 2ms | **Unique** |
---
## **🌍 Comparação Mundial:**
| HTTP/1.1 | ✅ | ✅ | ✅ | ✅ |
| HTTP/2 | ✅ | ✅ | ✅ | ✅ |
| HTTP/3 | ✅ | ❌ | ❌ | ❌ |
| Telemetry | ✅ | ❌ | ❌ | ❌ |
| Regional fallback | ✅ | ❌ | ❌ | ❌ |
| WebSocket | ✅ | ❌ | ❌ | ✅ |
| Connection pooling | ✅ | ✅ | ✅ | N/A |
| Zero-copy | ✅ | ❌ | ✅ | ✅ |
| Brazilian-optimized | ✅ | ❌ | ❌ | ❌ |
**Unique Value:**
- ✅ **Faster** than reqwest (more optimized)
- ✅ **More complete** than hyper (HTTP/3 + telemetry)
- ✅ **Brazilian-first** (única com regional optimization)
- ✅ **Built-in observability** (OpenTelemetry)
---
## **🚀 Próximos Passos:**
### **Immediate (v0.2.0):**
1. Connection pooling - 3 dias
2. Streaming bodies - 2 dias
3. Middleware system - 3 dias
### **Short-term (v0.3.0):**
4. **HTTP/2** - 3 semanas ⚡ **PRIORITY**
5. HPACK compression - incluído
### **Medium-term (v0.4.0):**
6. HTTP/3 + QUIC - 6 semanas
7. QPACK compression - incluído
### **Long-term (v1.0.0):**
8. Telemetria - 3 semanas
9. Brazilian optimization - 2 semanas
10. TLS 1.3 - 1 semana
11. Rate limiting - 2 dias
12. WebSocket - 1 semana
---
## **🎯 Esforço Total: 20 semanas (5 meses)**
**Milestone killer:** HTTP/2 (3 semanas) = Industry standard! 🔥