Develop. Secure. Deploy.

// src/components/MetricsPanel.tsx
'use client'

import { useEffect, useState } from 'react'
import { Card, CardHeader } from '@/components/ui/Card'

export function MetricsPanel({ projectId }: Props) {
  const [data, setData] = useState<Metric[]>([])

  useEffect(() => {
    const ctrl = new AbortController()
    fetch(`/api/projects/${projectId}/metrics`, { signal: ctrl.signal })
      .then(r => r.json())
      .then(setData)
      .catch(() => {})
    return () => ctrl.abort()
  }, [projectId])

  return (
    <Card>
      <CardHeader>Real-time metrics</CardHeader>
      {data.map(m => <MetricRow key={m.id} metric={m} />)}
    </Card>
  )
}

# python/etl/transform.py
from typing import Iterable
import polars as pl
from prefect import flow, task

@task(retries=3, retry_delay_seconds=30)
def load_events(source: str) -> pl.DataFrame:
    return pl.read_parquet(source)

@task
def aggregate(df: pl.DataFrame) -> pl.DataFrame:
    return (
        df.lazy()
        .group_by(['tenant_id', 'event_type'])
        .agg([
            pl.col('amount').sum().alias('total'),
            pl.col('id').count().alias('count'),
        ])
        .collect()
    )

@flow(name='hourly-rollup')
def rollup_pipeline(sources: Iterable[str]) -> None:
    for src in sources:
        df = load_events(src)
        result = aggregate(df)
        result.write_parquet(f'rollups/{src}.parquet')

// rust/src/auth.rs
use jsonwebtoken::{decode, DecodingKey, Validation, Algorithm};
use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct Claims {
    pub sub: String,
    pub exp: usize,
    pub roles: Vec<String>,
}

pub fn verify_token(token: &str, key: &[u8]) -> Result<Claims, AuthError> {
    let mut validation = Validation::new(Algorithm::HS256);
    validation.set_audience(&["api.kyaxcorp.com"]);
    decode::<Claims>(token, &DecodingKey::from_secret(key), &validation)
        .map(|data| data.claims)
        .map_err(|_| AuthError::InvalidToken)
}

-- sql/migrations/0042_audit_log.sql
CREATE TABLE IF NOT EXISTS audit_log (
    id          BIGSERIAL PRIMARY KEY,
    actor_id    UUID NOT NULL,
    tenant_id   UUID NOT NULL,
    action      TEXT NOT NULL,
    resource    TEXT NOT NULL,
    metadata    JSONB DEFAULT '{}'::jsonb,
    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_audit_actor ON audit_log (actor_id, created_at DESC);
CREATE INDEX idx_audit_tenant ON audit_log (tenant_id, created_at DESC);

// src/components/MetricsPanel.tsx
'use client'

import { useEffect, useState } from 'react'
import { Card, CardHeader } from '@/components/ui/Card'

export function MetricsPanel({ projectId }: Props) {
  const [data, setData] = useState<Metric[]>([])

  useEffect(() => {
    const ctrl = new AbortController()
    fetch(`/api/projects/${projectId}/metrics`, { signal: ctrl.signal })
      .then(r => r.json())
      .then(setData)
      .catch(() => {})
    return () => ctrl.abort()
  }, [projectId])

  return (
    <Card>
      <CardHeader>Real-time metrics</CardHeader>
      {data.map(m => <MetricRow key={m.id} metric={m} />)}
    </Card>
  )
}

# python/etl/transform.py
from typing import Iterable
import polars as pl
from prefect import flow, task

@task(retries=3, retry_delay_seconds=30)
def load_events(source: str) -> pl.DataFrame:
    return pl.read_parquet(source)

@task
def aggregate(df: pl.DataFrame) -> pl.DataFrame:
    return (
        df.lazy()
        .group_by(['tenant_id', 'event_type'])
        .agg([
            pl.col('amount').sum().alias('total'),
            pl.col('id').count().alias('count'),
        ])
        .collect()
    )

@flow(name='hourly-rollup')
def rollup_pipeline(sources: Iterable[str]) -> None:
    for src in sources:
        df = load_events(src)
        result = aggregate(df)
        result.write_parquet(f'rollups/{src}.parquet')

// rust/src/auth.rs
use jsonwebtoken::{decode, DecodingKey, Validation, Algorithm};
use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct Claims {
    pub sub: String,
    pub exp: usize,
    pub roles: Vec<String>,
}

pub fn verify_token(token: &str, key: &[u8]) -> Result<Claims, AuthError> {
    let mut validation = Validation::new(Algorithm::HS256);
    validation.set_audience(&["api.kyaxcorp.com"]);
    decode::<Claims>(token, &DecodingKey::from_secret(key), &validation)
        .map(|data| data.claims)
        .map_err(|_| AuthError::InvalidToken)
}

-- sql/migrations/0042_audit_log.sql
CREATE TABLE IF NOT EXISTS audit_log (
    id          BIGSERIAL PRIMARY KEY,
    actor_id    UUID NOT NULL,
    tenant_id   UUID NOT NULL,
    action      TEXT NOT NULL,
    resource    TEXT NOT NULL,
    metadata    JSONB DEFAULT '{}'::jsonb,
    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX idx_audit_actor ON audit_log (actor_id, created_at DESC);
CREATE INDEX idx_audit_tenant ON audit_log (tenant_id, created_at DESC);