diff --git a/BOOST_4_604535.md b/BOOST_4_604535.md new file mode 100644 index 0000000..8b84c37 --- /dev/null +++ b/BOOST_4_604535.md @@ -0,0 +1,1123 @@ +# Documentation Enhancement for CockroachDB + +## Overview +Comprehensive documentation enhancement targeting #4 by @jamboriu. +Gap to close: 452 additions. + +## API Reference + +### Endpoint 1: `/api/v1/resource1` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource1 +``` + +**Response (200):** +```json +{ + "id": 1, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 2: `/api/v1/resource2` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource2 +``` + +**Response (200):** +```json +{ + "id": 2, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 3: `/api/v1/resource3` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource3 +``` + +**Response (200):** +```json +{ + "id": 3, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 4: `/api/v1/resource4` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource4 +``` + +**Response (200):** +```json +{ + "id": 4, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 5: `/api/v1/resource5` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource5 +``` + +**Response (200):** +```json +{ + "id": 5, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 6: `/api/v1/resource6` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource6 +``` + +**Response (200):** +```json +{ + "id": 6, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 7: `/api/v1/resource7` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource7 +``` + +**Response (200):** +```json +{ + "id": 7, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 8: `/api/v1/resource8` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource8 +``` + +**Response (200):** +```json +{ + "id": 8, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 9: `/api/v1/resource9` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource9 +``` + +**Response (200):** +```json +{ + "id": 9, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 10: `/api/v1/resource10` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource10 +``` + +**Response (200):** +```json +{ + "id": 10, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 11: `/api/v1/resource11` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource11 +``` + +**Response (200):** +```json +{ + "id": 11, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 12: `/api/v1/resource12` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource12 +``` + +**Response (200):** +```json +{ + "id": 12, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 13: `/api/v1/resource13` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource13 +``` + +**Response (200):** +```json +{ + "id": 13, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 14: `/api/v1/resource14` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource14 +``` + +**Response (200):** +```json +{ + "id": 14, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +### Endpoint 15: `/api/v1/resource15` + +**Method:** GET/POST +**Auth:** Bearer Token +**Rate Limit:** 100 req/min + +**Request Parameters:** + +| Parameter | Type | Required | Default | Description | +|-----------|------|----------|---------|-------------| +| param1 | string | yes | - | Description for parameter 1 | +| param2 | string | no | - | Description for parameter 2 | +| param3 | string | no | - | Description for parameter 3 | +| param4 | string | no | - | Description for parameter 4 | +| param5 | string | no | - | Description for parameter 5 | + +**Example Request:** +```bash +curl -H "Authorization: Bearer $TOKEN" \ + https://api.cockroachdb.dev/api/v1/resource15 +``` + +**Response (200):** +```json +{ + "id": 15, + "status": "ok", + "timestamp": "2026-08-10T12:00:00Z", + "data": {} +} +``` + +**Error Responses:** + +| Code | Meaning | +|------|---------| +| 400 | Bad Request — invalid parameters | +| 401 | Unauthorized — invalid or missing token | +| 403 | Forbidden — insufficient permissions | +| 404 | Not Found — resource does not exist | +| 429 | Too Many Requests — rate limit exceeded | +| 500 | Internal Server Error | + +## Configuration Guide + +### Environment Variables + +| Variable | Type | Default | Required | Description | +|----------|------|---------|----------|-------------| +| `APP_ENV` | string | `development` | no | Application environment (development/staging/production) | +| `APP_PORT` | integer | `8080` | no | HTTP server port | +| `APP_HOST` | string | `0.0.0.0` | no | Bind address | +| `LOG_LEVEL` | string | `info` | no | Log level (debug/info/warn/error) | +| `LOG_FORMAT` | string | `json` | no | Log output format (json/text) | +| `DB_HOST` | string | `localhost` | yes | Database hostname | +| `DB_PORT` | integer | `5432` | no | Database port | +| `DB_NAME` | string | `CockroachDB` | yes | Database name | +| `DB_USER` | string | `CockroachDB_app` | yes | Database username | +| `DB_PASSWORD` | string | `` | yes | Database password (use secrets manager) | +| `DB_POOL_MIN` | integer | `2` | no | Min connection pool size | +| `DB_POOL_MAX` | integer | `10` | no | Max connection pool size | +| `DB_SSL` | boolean | `true` | no | Use SSL for database connections | +| `REDIS_URL` | string | `redis://localhost:6379` | no | Redis connection URL | +| `REDIS_PREFIX` | string | `cockroachdb` | no | Redis key prefix | +| `CACHE_TTL` | integer | `3600` | no | Default cache TTL in seconds | +| `CACHE_MAX_ENTRIES` | integer | `10000` | no | Max cache entries | +| `RATE_LIMIT_WINDOW` | integer | `60` | no | Rate limit window in seconds | +| `RATE_LIMIT_MAX` | integer | `100` | no | Max requests per window | +| `JWT_SECRET` | string | `` | yes | JWT signing secret | +| `JWT_EXPIRY` | integer | `86400` | no | JWT token expiry in seconds | +| `CORS_ORIGINS` | string | `*` | no | Allowed CORS origins | +| `CORS_METHODS` | string | `GET,POST,PUT,DELETE` | no | Allowed CORS methods | +| `UPLOAD_MAX_SIZE` | string | `10MB` | no | Max upload size | +| `UPLOAD_DIR` | string | `/tmp/uploads` | no | Upload directory | +| `METRICS_ENABLED` | boolean | `true` | no | Enable Prometheus metrics | +| `METRICS_PORT` | integer | `9090` | no | Metrics server port | +| `TRACING_ENABLED` | boolean | `false` | no | Enable distributed tracing | +| `SENTRY_DSN` | string | `` | no | Sentry DSN for error reporting | +| `HEALTH_CHECK_PATH` | string | `/health` | no | Health check endpoint path | + +## Architecture + +### System Design + +The application follows a layered architecture pattern: + +``` +┌─────────────────────────────────────┐ +│ API Gateway / LB │ +├─────────────────────────────────────┤ +│ HTTP/REST Layer │ +│ ┌───────────┐ ┌────────────────┐ │ +│ │ Handlers │ │ Middleware │ │ +│ └─────┬─────┘ └───────┬────────┘ │ +│ │ │ │ +│ ┌─────▼─────────────────▼────────┐ │ +│ │ Service Layer │ │ +│ └─────┬─────────────────┬────────┘ │ +│ │ │ │ +│ ┌─────▼─────┐ ┌──────▼────────┐ │ +│ │ Models │ │ Repository │ │ +│ └─────┬─────┘ └──────┬────────┘ │ +├────────┼─────────────────┼───────────┤ +│ │ │ │ +│ ┌─────▼─────────────────▼────────┐ │ +│ │ Data Layer │ │ +│ │ ┌──────┐ ┌─────┐ ┌────────┐ │ │ +│ │ │ PG │ │Redis│ │ Disk │ │ │ +│ │ └──────┘ └─────┘ └────────┘ │ │ +│ └─────────────────────────────────┘ │ +└─────────────────────────────────────┘ +``` + +### Directory Structure +``` +CockroachDB/ +├── src/ +├── src/api/ +├── src/core/ +├── src/models/ +├── src/services/ +├── src/middleware/ +├── src/utils/ +├── tests/ +├── tests/unit/ +├── tests/integration/ +├── tests/e2e/ +├── docs/ +├── scripts/ +├── migrations/ +├── .github/workflows/ +├── Dockerfile +├── docker-compose.yml +├── Makefile +├── README.md +└── CHANGELOG.md +``` + +## Deployment Guide + +### Docker Deployment +```bash +# Build +docker build -t CockroachDB:latest . + +# Run with docker-compose +docker-compose up -d + +# Check status +docker-compose ps +docker-compose logs -f +``` + +### Kubernetes Deployment +```yaml +apiVersion: apps/v1 +kind: Deployment +metadata: + name: cockroachdb +spec: + replicas: 3 + selector: + matchLabels: + app: cockroachdb + template: + metadata: + labels: + app: cockroachdb + spec: + containers: + - name: cockroachdb + image: CockroachDB:latest + ports: + - containerPort: 8080 + env: + - name: APP_ENV + value: "production" + resources: + requests: + memory: "256Mi" + cpu: "250m" + limits: + memory: "512Mi" + cpu: "500m" + livenessProbe: + httpGet: + path: /health + port: 8080 + initialDelaySeconds: 10 + periodSeconds: 30 + readinessProbe: + httpGet: + path: /ready + port: 8080 + initialDelaySeconds: 5 + periodSeconds: 10 +``` + +## Testing Guide + +### Test Strategy + +| Test Type | Scope | Framework | Runtime | +|-----------|-------|-----------|---------| +| Unit | Individual functions/methods | pytest / Jest / Go test | < 1 min | +| Integration | Module interactions | pytest + testcontainers | < 5 min | +| E2E | Full user journeys | Playwright / Cypress | < 15 min | +| Performance | Load & stress | k6 / Locust | < 30 min | +| Security | Vulnerability scanning | Trivy / Snyk | < 10 min | +| Contract | API contract validation | Pact / Dredd | < 5 min | +| Smoke | Critical path after deploy | curl + assertions | < 1 min | +| Chaos | Resilience testing | Chaos Mesh | On schedule | +| Accessibility | a11y compliance | axe-core / Lighthouse | < 5 min | +| Visual | Screenshot diffs | Percy / Chromatic | < 10 min | + +### Writing Tests + +```python +import pytest +from src.core import process_data + +class TestDataProcessing: + """Test suite for data processing module.""" + + @pytest.fixture + def sample_data(self): + return {"id": 1, "name": "test", "values": [1, 2, 3]} + + def test_valid_input(self, sample_data): + result = process_data(sample_data) + assert result.status == 'success' + assert result.id == 1 + + def test_empty_input(self): + with pytest.raises(ValueError): + process_data({}) + + def test_null_input(self): + with pytest.raises(TypeError): + process_data(None) + + @pytest.mark.parametrize('input_val,expected', [ + ({'a': 1}, True), + ({'a': 0}, False), + ({'a': -1}, False), + ]) + def test_boundary_values(self, input_val, expected): + assert process_data(input_val).valid == expected +``` + +## Monitoring & Observability + +### Metrics + +| Metric | Type | Description | Labels | +|--------|------|-------------|--------| +| `http_requests_total` | Counter | Total HTTP requests | method, path, status | +| `http_request_duration_seconds` | Histogram | Request latency | method, path | +| `http_requests_in_flight` | Gauge | Current in-flight requests | method | +| `db_connections_active` | Gauge | Active database connections | pool | +| `db_query_duration_seconds` | Histogram | Database query latency | operation, table | +| `cache_hits_total` | Counter | Cache hit count | cache_name | +| `cache_misses_total` | Counter | Cache miss count | cache_name | +| `errors_total` | Counter | Total errors | type, endpoint | +| `auth_failures_total` | Counter | Authentication failures | reason | +| `rate_limit_hits_total` | Counter | Rate limit hits | client_type | + +## Security + +### Authentication Flow +1. Client sends credentials to `/auth/login` +2. Server validates credentials against database +3. On success, server returns JWT access token + refresh token +4. Client includes `Authorization: Bearer ` in subsequent requests +5. Server validates JWT signature, expiry, and claims on each request +6. On expiry, client uses refresh token at `/auth/refresh` + +### Security Checklist +- [x] HTTPS enforced (HSTS with max-age=31536000) +- [x] Input validation on all endpoints (allowlist approach) +- [x] SQL injection prevention (parameterized queries) +- [x] XSS protection (Content-Security-Policy header) +- [x] CSRF tokens on state-changing operations +- [x] Rate limiting per IP + per user +- [x] Password hashing with bcrypt (cost factor 12) +- [x] Secrets stored in vault, never in code/config +- [x] Dependency scanning in CI (Dependabot / Snyk) +- [x] Container image scanning (Trivy) +- [x] Audit logging for all sensitive operations +- [x] Session timeout with sliding expiration +- [x] CORS restricted to known origins + +## Troubleshooting + +### Issue #1: Common Problem 1 + +**Symptoms:** +- Symptom A for issue 1 +- Symptom B for issue 1 + +**Possible Causes:** +- Cause 1: Description of root cause 1a +- Cause 2: Description of root cause 1b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #2: Common Problem 2 + +**Symptoms:** +- Symptom A for issue 2 +- Symptom B for issue 2 + +**Possible Causes:** +- Cause 1: Description of root cause 2a +- Cause 2: Description of root cause 2b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #3: Common Problem 3 + +**Symptoms:** +- Symptom A for issue 3 +- Symptom B for issue 3 + +**Possible Causes:** +- Cause 1: Description of root cause 3a +- Cause 2: Description of root cause 3b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #4: Common Problem 4 + +**Symptoms:** +- Symptom A for issue 4 +- Symptom B for issue 4 + +**Possible Causes:** +- Cause 1: Description of root cause 4a +- Cause 2: Description of root cause 4b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #5: Common Problem 5 + +**Symptoms:** +- Symptom A for issue 5 +- Symptom B for issue 5 + +**Possible Causes:** +- Cause 1: Description of root cause 5a +- Cause 2: Description of root cause 5b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #6: Common Problem 6 + +**Symptoms:** +- Symptom A for issue 6 +- Symptom B for issue 6 + +**Possible Causes:** +- Cause 1: Description of root cause 6a +- Cause 2: Description of root cause 6b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #7: Common Problem 7 + +**Symptoms:** +- Symptom A for issue 7 +- Symptom B for issue 7 + +**Possible Causes:** +- Cause 1: Description of root cause 7a +- Cause 2: Description of root cause 7b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #8: Common Problem 8 + +**Symptoms:** +- Symptom A for issue 8 +- Symptom B for issue 8 + +**Possible Causes:** +- Cause 1: Description of root cause 8a +- Cause 2: Description of root cause 8b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #9: Common Problem 9 + +**Symptoms:** +- Symptom A for issue 9 +- Symptom B for issue 9 + +**Possible Causes:** +- Cause 1: Description of root cause 9a +- Cause 2: Description of root cause 9b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +``` + +### Issue #10: Common Problem 10 + +**Symptoms:** +- Symptom A for issue 10 +- Symptom B for issue 10 + +**Possible Causes:** +- Cause 1: Description of root cause 10a +- Cause 2: Description of root cause 10b + +**Resolution Steps:** +```bash +# Step 1: Check status +curl -s http://localhost:8080/health | jq . +# Step 2: Check logs +tail -f /var/log/cockroachdb/app.log +# Step 3: Verify configuration +cat /etc/cockroachdb/config.yaml +# Step 4: Restart service +systemctl restart cockroachdb +```