edr-platform/CLAUDE.md

EDR Platform — Developer Guide

Overview

Monorepo for the Ethio Djibouti Railway (EDR) digital platform. Contains the Freight Management and Passenger Management applications, plus shared types, NestJS utilities, and React component libraries.

Apps

App	Package name	Purpose	Port
edr-freight-api	@edr/freight-api	NestJS API for freight management	3001
edr-freight-web/portal	@edr/freight-portal	React frontend for freight customer/portal users	5173
edr-freight-web/backoffice	@edr/freight-backoffice	React frontend for freight backoffice employees	5183
edr-passenger-api	@edr/passenger-api	NestJS API for passenger management	3002
edr-passenger-web/portal	@edr/passenger-portal	React frontend for passenger customer/portal users	5174
edr-passenger-web/backoffice	@edr/passenger-backoffice	React frontend for passenger backoffice employees	5184

edr-freight-web and edr-passenger-web are grouping folders, not workspace packages. Each holds a portal/ and backoffice/ sub-app, both of which are independent pnpm workspace packages (declared in pnpm-workspace.yaml). The existing pnpm dev:freight / pnpm dev:passenger turbo filters (@edr/freight-* / @edr/passenger-*) cover all four web apps + their APIs.

Packages

Package	Purpose
@edr/types	Shared TypeScript interfaces and enums
@edr/api-common	Shared NestJS decorators, filters, interceptors, pipes, BaseEntity, BaseRepository
@edr/ui-common	Shared React components and theme
@edr/eslint-config	Shared ESLint configurations (base/nestjs/react)
@edr/tsconfig	Shared TypeScript configurations
@edr/prettier-config	Shared Prettier configuration

Commands

Command	Description
pnpm install	Install all workspace dependencies
pnpm dev	Run every app in dev mode
pnpm dev:freight	Run only freight API + web
pnpm dev:passenger	Run only passenger API + web
pnpm build	Build every package and app
pnpm test	Run all tests
pnpm lint	Lint everything
pnpm type-check	Type-check every package
pnpm format	Format all files with Prettier

Standards

• TypeScript strict mode is enabled in every package and app.
• pnpm is the only supported package manager — never run npm install or yarn.
• Conventional commits are enforced via commitlint on every commit.
• NestJS modules follow the 4-layer pattern: module → controller → service → repository (entities and DTOs live alongside).
• All entities use UUID primary keys (@PrimaryGeneratedColumn('uuid')).
• All entities have createdAt, updatedAt, deletedAt (soft delete) via @edr/api-common's BaseEntity.
• All columns use snake_case in the database (@Column({ name: 'snake_case' })); TypeScript properties use camelCase.
• Never use synchronize: true in production database config. All schema changes go through TypeORM migrations.
• ESLint + Prettier run on pre-commit via Husky + lint-staged.
• Services never inject TypeORM Repository<T> directly — they inject the custom repository class.
• Controllers never contain business logic.

Auth

Authentication is handled by an external package (@edr/iamui-common or equivalent) that will be integrated later. Do not implement any auth, login, logout, JWT verification, password hashing, or user management code in this repo.

When auth integration is needed, use placeholder TODO comments:

• // @UseGuards(JwtAuthGuard) — TODO: integrate @edr/auth
• // TODO: integrate @edr/auth — replace stub @CurrentUser with real one

The @CurrentUser, @Roles, and @Public decorators in @edr/api-common are bare metadata setters with no guard wiring — they exist so controllers can be annotated correctly without depending on auth infrastructure yet.

Port Assignments

• edr-freight-api: 3001
• edr-freight-web/portal: 5173
• edr-freight-web/backoffice: 5183
• edr-passenger-api: 3002
• edr-passenger-web/portal: 5174
• edr-passenger-web/backoffice: 5184

Database Layout

• postgres-freight (port 5433): database edr_freight — freight API only.
• postgres-passenger (port 5434): database edr_passenger — passenger API only.
• Each app owns its own DB. No cross-database joins; cross-domain data flows through API calls or message queues.

Adding a new module to a NestJS app

1. Create modules/<feature>/ with entities/, dto/, and the four <feature>.{module,controller,service,repository}.ts files.
2. The entity extends BaseEntity from @edr/api-common.
3. The repository extends BaseRepository<Entity> from @edr/api-common.
4. The service injects the repository class (not Repository<T> directly).
5. The controller uses @ApiTags() + @ApiOperation() for Swagger.
6. Register the module in the app's app.module.ts.

Adding a new shared component to @edr/ui-common

1. Create src/components/<Name>/<Name>.tsx and src/components/<Name>/index.ts.
2. Export from src/index.ts.
3. Component is a functional component with a ComponentNameProps interface (named-exported alongside the default).