managarten/services/mana-research/src/db/connection.ts
Till JS 2bdb48bdd1 feat(research): add mana-research service — Phase 1 + 2
New Bun/Hono service on port 3068 that bundles many web-research providers
behind a unified interface for side-by-side comparison. All eval runs
persist in research.* (mana_platform) so quality can be reviewed later.

Providers (Phase 1+2):
  search:  searxng, duckduckgo, brave, tavily, exa, serper
  extract: readability (via mana-search), jina-reader, firecrawl

Endpoints:
  POST /v1/search, /v1/search/compare       — single + fan-out
  POST /v1/extract, /v1/extract/compare     — single + fan-out
  GET  /v1/runs, /v1/runs/:id               — history
  POST /v1/runs/:run/results/:id/rate       — manual eval
  GET  /v1/providers, /v1/providers/health  — catalog + readiness

Auto-routing: when `provider` is omitted, queries are classified via regex
(fast path, 0ms) with optional mana-llm fallback, then routed to the first
available provider for that query type (news → tavily, academic → exa,
semantic → exa, etc.).

Credits: server-key calls go through mana-credits reserve → commit/refund
so failed provider calls don't charge the user. BYO-keys supported via
research.provider_configs (UI arrives in Phase 4).

Cache: Redis with graceful degradation (1h TTL for search, 24h for
extract). Pay-per-use APIs only — no subscription-gated providers.

Docs: docs/plans/mana-research-service.md + docs/reports/web-research-capabilities.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-17 14:42:25 +02:00

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TypeScript

import { drizzle } from 'drizzle-orm/postgres-js';
import postgres from 'postgres';
import * as schema from './schema/index';
let db: ReturnType<typeof drizzle<typeof schema>> | null = null;
export function getDb(databaseUrl: string) {
if (!db) {
const client = postgres(databaseUrl, { max: 10 });
db = drizzle(client, { schema });
}
return db;
}
export type Database = ReturnType<typeof getDb>;