git:20260911.16cf003 to v3.0.0

+ ---

+ name: fullstack-expert

+ description: "Expert-level fullstack development guide covering multi-language (TypeScript, Python, Go, Rust), API design (OpenAPI 3.1, gRPC), microservices, system design patterns, and polyglot architecture / Panduan fullstack tingkat ahli mencakup multi-bahasa, desain API, microservices, dan arsitektur polyglot."

+ author: "Roedy Rustam"

+ version: "3.0.0"

+ ---

+

+ # Fullstack Expert (2026 Polyglot & Systems Edition)

+

+ [English](#english) | [Bahasa Indonesia](#bahasa-indonesia)

+

+ ---

+

+ <a name="english"></a>

+ ## English

+

+ ### Orchestration & Integration

+ Connects and orchestrates with domain skills like `brainstorming`, `zero-to-prod-orchestrator`, `senior-frontend`, `js-backend-expert`, `go-programming-expert`, `python-programming-expert`, and `rust-programming-expert`.

+

+ ### Description

+ Expert-level fullstack development across multiple languages and frameworks. Focuses on polyglot backend architectures, system design patterns (Event-Driven Saga, CQRS), API contracts (OpenAPI 3.1, gRPC), and monorepo shared types.

+

+ ### Trigger Conditions

+ - Choosing the right language and framework for a multi-service architecture.

+ - Designing API contracts (REST, gRPC, Hono RPC) between heterogeneous services.

+ - Implementing distributed system design patterns (Saga, CQRS).

+ - Setting up a polyglot monorepo with shared types across frontend and backend.

+

+ ---

+

+ ### 2026 Polyglot Architecture Matrix

+

+ > For comprehensive frontend UI architecture, see `senior-frontend` and `nextjs-app-router-expert`.

+ > For dedicated AI agent workflows and LLM integrations, see `ai-llm-integration-expert` and `multi-agent-orchestration`.

+

+ | Language | Primary Frameworks | Ideal Workloads |

+ |---|---|---|

+ | **TypeScript** | Hono, Fastify 5, NestJS | Serverless, Edge APIs, type-safe RPC |

+ | **Python** | FastAPI 0.115+, Django 5 | Data science, LLM orchestration, async queues |

+ | **Go** | net/http (Go 1.25+), Gin, Echo | Ultra-high throughput microservices, networking, CLIs |

+ | **Rust** | Axum 0.8, Actix-web 4 | High-performance compute, memory safety, WASM |

+

+ #### Infrastructure & Multi-Service Storage

+ - **Primary OLTP**: PostgreSQL with connection pooling (PgBouncer / Supavisor).

+ - **Analytics OLAP**: ClickHouse / DuckDB for high-speed aggregations.

+ - **Cache & Ephemeral State**: Redis / Upstash with TTL.

+ - **Vector Search**: pgvector or Qdrant for semantic search.

+

+ ---

+

+ ### API Design Standards

+

+ #### REST — OpenAPI 3.1

+ ```yaml

+ openapi: "3.1.0"

+ info:

+ title: "SaaS Multi-Service API"

+ version: "1.0.0"

+ paths:

+ /api/v1/workspaces/{id}:

+ get:

+ summary: "Get workspace by ID"

+ parameters:

+ - name: id

+ in: path

+ required: true

+ schema: { type: string, format: uuid }

+ responses:

+ "200":

+ content:

+ application/json:

+ schema: { $ref: "#/components/schemas/Workspace" }

+ "404":

+ content:

+ application/json:

+ schema: { $ref: "#/components/schemas/ProblemDetail" }

+ ```

+

+ #### gRPC — Protocol Buffers (`proto3`)

+ ```protobuf

+ syntax = "proto3";

+ package user.v1;

+

+ service UserService {

+ rpc GetUser (GetUserRequest) returns (User);

+ rpc ListUsers (ListUsersRequest) returns (stream User);

+ rpc CreateUser (CreateUserRequest) returns (User);

+ }

+

+ message User {

+ string id = 1;

+ string email = 2;

+ string name = 3;

+ repeated string workspace_ids = 4;

+ }

+ ```

+

+ ---

+

+ ### Microservice Patterns

+

+ #### Event-Driven (Saga Pattern with Compensations)

+ ```

+ Order Service ──publishes──> "order.created" ──> Payment Service

+ │

+ ┌──────┴──────┐

+ success? failure?

+ │ │

+ "payment.succeeded" "payment.failed"

+ │ │

+ Inventory Service Order Service

+ (reserve stock) (cancel order)

+ ```

+

+ #### CQRS (Command Query Responsibility Segregation)

+ - **Write side**: Commands validate and update the primary relational database.

+ - **Read side**: Events project into read-optimized denormalized views or ClickHouse tables for high-frequency queries.

+

+ ---

+

+ ### AI-Native Backend Integration

+ ```typescript

+ import { generateObject } from 'ai';

+ import { anthropic } from '@ai-sdk/anthropic';

+ import { z } from 'zod';

+

+ app.post('/api/analyze', async (c) => {

+ const { content } = await c.req.json();

+ const { object } = await generateObject({

+ model: anthropic('claude-3-7-sonnet-20250219'),

+ schema: z.object({

+ sentiment: z.enum(['positive', 'neutral', 'negative']),

+ topics: z.array(z.string()),

+ summary: z.string().max(200),

+ }),

+ prompt: `Analyze: ${content}`,

+ });

+ return c.json(object);

+ });

+ ```

+

+ ---

+

+ ### Monorepo with Shared Types

+ ```typescript

+ // packages/types/src/index.ts — single source of truth

+ export interface User {

+ id: string;

+ email: string;

+ name: string;

+ plan: 'free' | 'pro' | 'enterprise';

+ isSuperAdmin: boolean;

+ }

+ ```

+

+ ### Production Security Checklist

+ - [ ] User inputs validated with Zod / Pydantic on the server.

+ - [ ] Parameterized queries enforced across all database layers.

+ - [ ] Rate limiting on all public endpoints (`rate-limit-abuse-prevention`).

+ - [ ] Super Admin routes strictly isolated to dedicated subdomain.

+

+ ## Orchestration & Integration

+ - Integrates with: `js-backend-expert`, `go-programming-expert`, `python-programming-expert`, `rust-programming-expert`, `nextjs-app-router-expert`, `api-design-expert`.

+

+ ---

+

+ <a name="bahasa-indonesia"></a>

+ ## Bahasa Indonesia

+

+ ### Deskripsi

+ Panduan pengembangan fullstack tingkat ahli multi-bahasa (TypeScript, Python, Go, Rust), desain kontrak API (OpenAPI 3.1, gRPC), pola arsitektur microservices (Saga, CQRS), dan monorepo shared types.

+

+ ### Matriks Arsitektur Polyglot 2026

+ - **TypeScript**: Hono, Fastify 5, NestJS (Serverless, Cloudflare Edge, Hono RPC).

+ - **Python**: FastAPI 0.115+, Django 5 (AI/ML, orkestrasi LLM, pipeline asinkron).

+ - **Go**: net/http (Go 1.25+), Gin (Microservices throughput tinggi, CLI).

+ - **Rust**: Axum 0.8, Actix-web 4 (Performa ekstrem, komputasi berat, WASM).

+

+ ### Pola Sistem Terdistribusi

+ 1. **Saga Pattern**: Kompensasi rollback bertahap saat transaksi multi-layanan mengalami kegagalan.

+ 2. **CQRS**: Memisahkan database tulis (PostgreSQL) dari view proyeksi baca (ClickHouse/Redis) untuk beban baca tinggi.

+ 3. **Monorepo Shared Types**: Simpan definisi tipe bersama di `packages/types` sebagai single source of truth antara frontend dan backend.

+

+ ## Integrasi Orkestrasi