git init
This commit is contained in:
MaKarin
145
prompts/backend-rules.md
Normal file
145
prompts/backend-rules.md
Normal file
@@ -0,0 +1,145 @@
|
||||
# Backend Rules
|
||||
|
||||
Use this document during the **Backend** stage defined in `prompts/general-prompt.md`.
|
||||
|
||||
## Purpose
|
||||
|
||||
Generate NestJS CRUD artifacts that match the DSL contract exactly and remain compatible with a standard NestJS workspace.
|
||||
|
||||
## Mandatory Inputs
|
||||
|
||||
- `prompts/general-prompt.md`
|
||||
- the active `api API.<Entity>` block from `domain/toir.api.dsl`
|
||||
- referenced DTOs and enums from `domain/toir.api.dsl`
|
||||
- an intact or repaired official NestJS scaffold under `server/`
|
||||
|
||||
`api-summary.json` may be consulted only as an auxiliary inventory or validator-related artifact. It must never replace the DSL as the backend source of truth.
|
||||
|
||||
## Expected Outputs
|
||||
|
||||
Per entity:
|
||||
|
||||
- `server/src/modules/<kebab>/<kebab>.module.ts`
|
||||
- `server/src/modules/<kebab>/<kebab>.controller.ts`
|
||||
- `server/src/modules/<kebab>/<kebab>.service.ts`
|
||||
- `server/src/modules/<kebab>/dto/create-<kebab>.dto.ts`
|
||||
- `server/src/modules/<kebab>/dto/update-<kebab>.dto.ts`
|
||||
|
||||
Repository-wide:
|
||||
|
||||
- `server/src/app.module.ts` registrations
|
||||
|
||||
## Scaffold Baseline
|
||||
|
||||
- Start backend initialization and repair from the official NestJS CLI workspace, not from hand-written files.
|
||||
- Preserve Nest workspace essentials:
|
||||
- `server/tsconfig.json`
|
||||
- `server/tsconfig.build.json`
|
||||
- `server/nest-cli.json`
|
||||
- `server/src/main.ts`
|
||||
- `server/src/app.module.ts`
|
||||
- If the workspace is degraded, repair it before generating domain code.
|
||||
|
||||
Forbidden patterns:
|
||||
|
||||
- hand-written pseudo-Nest scaffolds
|
||||
- deleting required Nest config files after generation
|
||||
- replacing normal Nest build/start behavior with ad hoc scripts
|
||||
|
||||
## Route And Resource Contract
|
||||
|
||||
- Use the shared entity-to-resource naming convention from `prompts/general-prompt.md`.
|
||||
- Each entity becomes a NestJS module, controller, service, and create/update DTO pair.
|
||||
- CRUD routes use the real primary key name in the path.
|
||||
- Every API record returned to React Admin must include `id`.
|
||||
- For natural-key entities, map the real primary key to `id` in responses and sort translation.
|
||||
|
||||
## DTO Contract
|
||||
|
||||
- `DTO.<Entity>Create` defines `Create<Entity>Dto`.
|
||||
- `DTO.<Entity>Update` defines `Update<Entity>Dto`.
|
||||
- Do not invent fields or pull field lists from memory.
|
||||
- Never include `id` in Create/Update DTOs.
|
||||
|
||||
Type and decorator rules:
|
||||
|
||||
|
||||
| DSL type | TS DTO type | class-validator decorator | Notes |
|
||||
| --------- | ----------- | ------------------------- | ----------------------------- |
|
||||
| `uuid` | `string` | `@IsUUID()` | |
|
||||
| `string` | `string` | `@IsString()` | |
|
||||
| `text` | `string` | `@IsString()` | |
|
||||
| `integer` | `number` | `@IsInt()` | |
|
||||
| `number` | `number` | `@IsNumber()` | |
|
||||
| `decimal` | `string` | `@IsString()` | serialize with Prisma Decimal |
|
||||
| `date` | `string` | `@IsString()` | serialize as ISO string |
|
||||
| `boolean` | `boolean` | `@IsBoolean()` | |
|
||||
| enum name | `string` | `@IsEnum(EnumName)` | |
|
||||
|
||||
|
||||
Nullability rules:
|
||||
|
||||
- every field that is not `is required` gets `@IsOptional()` before the type decorator
|
||||
- every generated DTO imports from `'class-validator'`
|
||||
|
||||
## Controller Contract
|
||||
|
||||
- Apply `@UseGuards(JwtAuthGuard, RolesGuard)` at controller class level.
|
||||
- Roles per verb:
|
||||
- `GET` -> `viewer | editor | admin`
|
||||
- `POST`, `PATCH`, `PUT` -> `editor | admin`
|
||||
- `DELETE` -> `admin`
|
||||
- Reconcile DSL HTTP shapes for repository compatibility:
|
||||
- list endpoints declared as `POST .../page` generate as `@Get()` with React Admin query params
|
||||
- update endpoints declared as `PUT` generate as `@Patch(':<pk>')`
|
||||
- Path parameters are taken from the DSL endpoint contract, not invented from generic CRUD memory.
|
||||
|
||||
## Service Contract
|
||||
|
||||
- Never pass raw update DTOs directly into Prisma update `data`.
|
||||
- Strip `id`, the real primary key, and readonly fields before writes.
|
||||
- Keep `PrismaService` lightweight:
|
||||
- extend `PrismaClient`
|
||||
- implement `OnModuleInit`
|
||||
- call `$connect()`
|
||||
- do not add `beforeExit`
|
||||
|
||||
List endpoint requirements:
|
||||
|
||||
- accept React Admin query params: `_start`, `_end`, `_sort`, `_order`, `q`
|
||||
- set `Content-Range`
|
||||
- set `Access-Control-Expose-Headers: Content-Range`
|
||||
|
||||
Filtering rules:
|
||||
|
||||
- string/text filters may use case-insensitive `contains`
|
||||
- foreign-key scalar filters must use exact-match semantics
|
||||
- enum filters must support both single and repeated params
|
||||
- repeated enum params must map to Prisma `{ in: [...] }`
|
||||
- `_sort=id` must map to the real primary key for natural-key entities
|
||||
|
||||
Decimal and date handling:
|
||||
|
||||
- `decimal` writes: `new Prisma.Decimal(value)`
|
||||
- `decimal` reads: `.toString()`
|
||||
- `date` writes: `new Date(value)`
|
||||
- `date` reads: `.toISOString()`
|
||||
|
||||
## Natural-Key Rules
|
||||
|
||||
For entities whose physical primary key is not `id`:
|
||||
|
||||
- route params use the real primary key name
|
||||
- responses expose `id` mapped from that primary key
|
||||
- sort/update behavior never targets a fake physical `id`
|
||||
- update payload sanitization removes both `id` and the real primary key
|
||||
|
||||
## Completion Expectations
|
||||
|
||||
Backend generation is incomplete if any of the following is true:
|
||||
|
||||
- required Nest scaffold files are missing
|
||||
- DTO decorators are incomplete or type-incorrect
|
||||
- controllers are missing guards or role decorators
|
||||
- natural-key handling regresses to a fake physical `id`
|
||||
- list/filter behavior is incompatible with React Admin expectations
|
||||
Reference in New Issue
Block a user