Files
stack/apps/api/src/knowledge/dto/graph-query.dto.ts
Jason Woltje 5d348526de feat(#71): implement graph data API
Implemented three new API endpoints for knowledge graph visualization:

1. GET /api/knowledge/graph - Full knowledge graph
   - Returns all entries and links with optional filtering
   - Supports filtering by tags, status, and node count limit
   - Includes orphan detection (entries with no links)

2. GET /api/knowledge/graph/stats - Graph statistics
   - Total entries and links counts
   - Orphan entries detection
   - Average links per entry
   - Top 10 most connected entries
   - Tag distribution across entries

3. GET /api/knowledge/graph/:slug - Entry-centered subgraph
   - Returns graph centered on specific entry
   - Supports depth parameter (1-5) for traversal distance
   - Includes all connected nodes up to specified depth

New Files:
- apps/api/src/knowledge/graph.controller.ts
- apps/api/src/knowledge/graph.controller.spec.ts

Modified Files:
- apps/api/src/knowledge/dto/graph-query.dto.ts (added GraphFilterDto)
- apps/api/src/knowledge/entities/graph.entity.ts (extended with new types)
- apps/api/src/knowledge/services/graph.service.ts (added new methods)
- apps/api/src/knowledge/services/graph.service.spec.ts (added tests)
- apps/api/src/knowledge/knowledge.module.ts (registered controller)
- apps/api/src/knowledge/dto/index.ts (exported new DTOs)
- docs/scratchpads/71-graph-data-api.md (implementation notes)

Test Coverage: 21 tests (all passing)
- 14 service tests including orphan detection, filtering, statistics
- 7 controller tests for all three endpoints

Follows TDD principles with tests written before implementation.
All code quality gates passed (lint, typecheck, tests).

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-02-02 15:27:00 -06:00

37 lines
686 B
TypeScript

import { IsOptional, IsInt, Min, Max, IsString, IsEnum, IsArray } from "class-validator";
import { Type } from "class-transformer";
import { EntryStatus } from "@prisma/client";
/**
* Query parameters for entry-centered graph view
*/
export class GraphQueryDto {
@IsOptional()
@Type(() => Number)
@IsInt()
@Min(1)
@Max(5)
depth?: number = 1;
}
/**
* Query parameters for full graph view with filtering
*/
export class GraphFilterDto {
@IsOptional()
@IsArray()
@IsString({ each: true })
tags?: string[];
@IsOptional()
@IsEnum(EntryStatus)
status?: EntryStatus;
@IsOptional()
@Type(() => Number)
@IsInt()
@Min(1)
@Max(1000)
limit?: number;
}