Steedos Platform Overview | Steedos 平台概览

What is Steedos? | 什么是 Steedos?

Steedos (华炎魔方) is an enterprise low-code platform for building business applications. Developers define data models, UI, permissions, and business logic through YAML metadata files, and the platform generates a full-stack application with REST API, real-time WebSocket, and a React + Amis frontend.

Technology Stack | 技术栈

• Runtime: Node.js + TypeScript
• Backend: NestJS 11 + Moleculer 0.14 microservices
• Frontend: React + Amis (Baidu low-code UI framework)
• Database: MongoDB / PostgreSQL / MySQL
• Metadata: YAML files (.object.yml, .button.yml, .trigger.yml, etc.)
• NOT Python — all server-side code is JavaScript/TypeScript

Core Concepts | 核心概念

1. Objects — Database tables defined in YAML (.object.yml), with fields, relationships, and standard audit columns
2. Metadata Files — YAML files that declare UI, logic, and security; deployed via CLI or file sync
3. Packages — Self-contained modules (steedos-packages/*) that bundle objects, triggers, pages, and permissions
4. Triggers — Server-side JavaScript hooks that run before/after data operations
5. Functions — Server-side JavaScript functions exposed as REST API endpoints
6. Micro Pages — Custom UI pages built with the Amis JSON schema framework
7. Builder6 Server — The NestJS-based runtime that serves the REST API, WebSocket, and plugin system

Skill Routing | 技能路由

By Task | 按任务选择技能

"I want to create a new project" → steedos-project-package → steedos-configuration

"I want to understand built-in objects" → steedos-builtin-objects (core objects: users, spaces, organizations, permission_set, apps, etc.)

"I want to define data models and fields" → steedos-objects → steedos-object-fields

"I want to add business logic" → steedos-server-logic (triggers + functions) → steedos-object-buttons (UI actions)

"I want to build UI pages" → steedos-pages (standalone + object-bound pages) → steedos-applications + steedos-tabs (navigation)

"I want to develop custom React amis components" → steedos-webapps (React + Vite webapps with IIFE amis Renderer registration)

"I want to set up permissions and i18n" → steedos-object-permissions → steedos-translations

"I want to create dashboards and reports" → steedos-analytics (questions + dashboards, requires enterprise license)

"I want to load seed data" → steedos-seed-data

"I want to use the REST or GraphQL API" → steedos-server-api (REST) → steedos-graphql-api (GraphQL)

"I want to understand the server" → steedos-server-internals → steedos-server-api → steedos-graphql-api

"I want to work with Builder6 internals" → steedos-builder6-internals → steedos-builder6-api → steedos-builder6-modules

Typical Development Flow | 典型开发流程

1. steedos-project-package   → Create project structure
2. steedos-objects            → Define data models
3. steedos-object-fields      → Add fields and relationships
4. steedos-server-logic       → Add triggers and functions
5. steedos-object-buttons     → Add custom actions
6. steedos-applications       → Create app with navigation
7. steedos-tabs               → Define tabs for the app
8. steedos-object-permissions → Set up access control
9. steedos-translations       → Add i18n labels
10. CLI commands below         → Deploy and manage

All Skills | 全部技能一览

Category	Skills
Foundation	steedos-project-package, steedos-configuration, steedos-getting-started
Data Modeling	steedos-builtin-objects, steedos-objects, steedos-object-fields
Business Logic	steedos-server-logic, steedos-object-buttons, steedos-pages
UI & Apps	steedos-applications, steedos-tabs, steedos-webapps
Analytics	steedos-analytics
Security	steedos-object-permissions
i18n	steedos-translations
Data	steedos-seed-data
Server	steedos-server-api, steedos-graphql-api, steedos-server-internals
Builder6	steedos-builder6-internals, steedos-builder6-api, steedos-builder6-modules

Key File Types | 关键文件类型

Extension	Purpose	Skill
.object.yml	Object definition	steedos-objects
.field.yml	Field definition	steedos-object-fields
.trigger.yml	Server trigger	steedos-server-logic
.function.yml	Server function	steedos-server-logic
.button.yml	Custom button	steedos-object-buttons
.listview.yml	List view	steedos-objects
.app.yml	Application	steedos-applications
.tab.yml	Navigation tab	steedos-tabs
.page.yml + .page.amis.json	Micro page	steedos-pages
.permission.yml	Permission set	steedos-object-permissions
.translation.yml	Translation	steedos-translations
.data.yml / .data.json	Seed data	steedos-seed-data

---

CLI Commands | 命令行工具

Overview | 概述

The Steedos CLI (steedos) is an oclif-based command-line tool for managing Steedos projects. It provides commands for starting/restarting servers, managing source code, importing/exporting data, and package operations.

Commands Reference | 命令参考

steedos start

Start the Steedos server. Writes a PID file (.steedos.pid) to the current working directory.

steedos start

Behavior:

• Resolves and loads @steedos/server module
• Writes current process PID to .steedos.pid
• Registers signal handlers (SIGINT, SIGTERM) to clean up PID file on exit
• Calls server.bootstrap() to start the server

steedos restart

Stop the running Steedos instance and start a new one. Designed for local development, especially AI-assisted development workflows.

steedos restart

Behavior:

1. Reads .steedos.pid to find the running process
2. Sends SIGTERM to gracefully stop
3. Waits up to 30 seconds; if timeout, sends SIGKILL
4. Starts a new server instance (same as steedos start)

Important: Local development only — not for Docker/cluster deployments.

steedos package:start

Run Steedos packages as Moleculer microservices. Supports clustering and hot reload.

steedos package:start [--instances <count|max>] [--hot]

steedos source:deploy

Deploy local source metadata to the metadata server.

steedos source:deploy -p <path>

steedos source:retrieve

Retrieve source metadata from the metadata server to local.

steedos source:retrieve -p <path>

steedos source:config

Configure the metadata server connection (interactive).

steedos source:config

steedos source:convert

Convert legacy format files to the modern source format.

steedos source:convert -p <path>

steedos source:merge

Merge split object-related files into a single .object.yml file.

steedos source:merge -p <path>

steedos data:export

Export object data to JSON files.

steedos data:export -o <objectName> [-i <ids>] [-f <fields>]

steedos data:import

Import data from JSON files or plan files.

steedos data:import -p <path>

steedos auth:login

Authenticate with the metadata server.

steedos auth:login -u <username> -p <password>

steedos i18n

Sync internationalization resources.

steedos i18n

steedos package:build

Build/compress a Steedos package.

steedos package:build

PID File Management

• Location: {project_root}/.steedos.pid
• Created: On steedos start or steedos restart
• Removed: On process exit (SIGINT, SIGTERM, or normal exit)
• Add .steedos.pid to .gitignore

Deployment Contexts | 部署场景

Context	Restart Method	Notes
Local development	steedos restart	Uses PID file, foreground process
Docker single container	supervisord autorestart	steedos start managed by supervisord
Docker Swarm / K8s	Orchestrator rolling update	docker service update or kubectl rollout
Moleculer microservice	steedos package:start --hot	Hot reload for development

---

Package Validation | 软件包校验

After creating or modifying a Steedos package, run the validator to check all files.

Usage | 使用方法

# Validate a single package
npx @steedos/validate steedos-packages/my-package

# JSON output (for CI)
npx @steedos/validate steedos-packages/my-package --json

Or install as a dev dependency:

{
  "devDependencies": {
    "@steedos/validate": "latest"
  },
  "scripts": {
    "validate": "steedos-validate"
  }
}

What is Validated | 校验内容

File Type	Key Checks
Package structure	package.json with main: package.service.js; package.service.js with packageLoader
.object.yml	Required: name, label, icon; name matches folder; name must be prefixed {org_code}_{project_code}_; must have a name field or is_name field
.field.yml	Required: name, type, label; name matches filename; valid field type
.trigger.yml	Required: name, listenTo, when, type, isEnabled, handler; type must be "code"; must be in triggers/ folder
.function.yml	Required: name, objectApiName, isEnabled, is_rest, script; must be in functions/ folder
.button.yml	Required: name, label, on, amis_schema; type must be "amis_button"; root type must be "service"
.listview.yml	Required: name, label
.permission.yml	Required: name or permission_set_id
.app.yml	Required: name, code; code must be prefixed {org_code}_{project_code}_
.tab.yml	Required: name, label
.page.yml	Must have matching .page.amis.json

Common Errors | 常见错误

Error	Fix
button.amis-root-service	Wrap amis_schema with {"type":"service","body":{...}}
trigger.location	Move trigger files to main/default/triggers/
function.location	Move function files to main/default/functions/
field.name-mismatch	File name must match name field value
button.no-label_zh	Remove label_zh, use i18n translation files instead
page.missing-amis	Create matching .page.amis.json file
object.name-prefix	Object name must start with {org_code}_{project_code}_
app.code-prefix	App code must start with {org_code}_{project_code}_

Install Skills | 安装技能

npx skills add steedos/steedos-platform --all
npx skills add steedos/steedos-platform --skill steedos-getting-started