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WaleedandClaude Opus 4.7
5cf7e8d546
* improvement(codebase): migrate tests to dbChainMock, extract react-query hooks Migrate 97 test files to centralized dbChainMock/dbChainMockFns helpers from @sim/testing — removes hoisted chain-wiring boilerplate. Extend dbChainMock to cover insert/update/delete/transaction/execute patterns. Extract useGitHubStars and useVoiceSettings react-query hooks from inline fetches. Centralize additional mocks (authMockFns, hybridAuthMockFns) and update docs. * fix(github-stars): centralize fallback via initialData, remove stale constants Move the placeholder star count into useGitHubStars as initialData with initialDataUpdatedAt: 0 so `data` is always a narrowed string while still refetching on mount. Fixes two Bugbot issues: stale '25.8k' in chat.tsx (vs '27.8k' in navbar) and empty-string return in fetchGitHubStars that bypassed `??` fallbacks in consumers. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(testing): wire dbChainMock.db to shared transaction and execute fns dbChainMock.db.transaction was an inline vi.fn() separate from the exported dbChainMockFns.transaction, so dbChainMockFns.transaction.mockResolvedValueOnce and assertions silently targeted the wrong instance. dbChainMock.db also omitted execute, so tests for any module that calls db.execute (logging-session, table service, billing balance) would throw TypeError. Both mocks now reference the module-level constants so overrides and resetDbChainMock affect the same fn. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(chat,testing): memoize welcome message and add selectDistinct to dbChainMock.db Why: - Welcome ChatMessage was rebuilt inline each render, producing a fresh timestamp and new array identity — cascading to ChatMessageContainer and VoiceInterface props on every tick. - dbChainMockFns exports selectDistinct/selectDistinctOn but the dbChainMock.db object omitted them, so tests that stub those builders hit undefined on the mocked module. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(chat): re-attach scroll listener once container mounts The scroll effect's empty dep array meant it ran only on the first render, when `chatConfig` is still loading and the component returns `<ChatLoadingState />` — so `messagesContainerRef.current` was null and the listener was never attached. Depend on the gating conditions that control which tree renders, so the effect re-runs once the real container is in the DOM (and re-attaches when toggling in/out of voice mode). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> * fix(chat): reset chat state on identifier change via key prop Keying `<ChatClient>` on `identifier` guarantees a full remount on route transitions between chats, so `conversationId`, `messages`, and every other piece of local state start fresh — no reset effect required. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
The open-source platform to build AI agents and run your agentic workforce. Connect 1,000+ integrations and LLMs to orchestrate agentic workflows.
Build Workflows with Ease
Design agent workflows visually on a canvas—connect agents, tools, and blocks, then run them instantly.
Supercharge with Copilot
Leverage Copilot to generate nodes, fix errors, and iterate on flows directly from natural language.
Integrate Vector Databases
Upload documents to a vector store and let agents answer questions grounded in your specific content.
Quickstart
Cloud-hosted: sim.ai
Self-hosted: NPM Package
npx simstudio
Note
Docker must be installed and running on your machine.
Options
| Flag | Description |
|---|---|
-p, --port <port> |
Port to run Sim on (default 3000) |
--no-pull |
Skip pulling latest Docker images |
Self-hosted: Docker Compose
git clone https://github.com/simstudioai/sim.git && cd sim
docker compose -f docker-compose.prod.yml up -d
Sim also supports local models via Ollama and vLLM — see the Docker self-hosting docs for setup details.
Self-hosted: Manual Setup
Requirements: Bun, Node.js v20+, PostgreSQL 12+ with pgvector
- Clone and install:
git clone https://github.com/simstudioai/sim.git
cd sim
bun install
bun run prepare # Set up pre-commit hooks
- Set up PostgreSQL with pgvector:
docker run --name simstudio-db -e POSTGRES_PASSWORD=your_password -e POSTGRES_DB=simstudio -p 5432:5432 -d pgvector/pgvector:pg17
Or install manually via the pgvector guide.
- Configure environment:
cp apps/sim/.env.example apps/sim/.env
# Create your secrets
perl -i -pe "s/your_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_internal_api_secret/$(openssl rand -hex 32)/" apps/sim/.env
perl -i -pe "s/your_api_encryption_key/$(openssl rand -hex 32)/" apps/sim/.env
# DB configs for migration
cp packages/db/.env.example packages/db/.env
# Edit both .env files to set DATABASE_URL="postgresql://postgres:your_password@localhost:5432/simstudio"
- Run migrations:
cd packages/db && bun run db:migrate
- Start development servers:
bun run dev:full # Starts Next.js app and realtime socket server
Or run separately: bun run dev (Next.js) and cd apps/sim && bun run dev:sockets (realtime).
Copilot API Keys
Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
- Set
COPILOT_API_KEYenvironment variable in your self-hosted apps/sim/.env file to that value
Environment Variables
See the environment variables reference for the full list, or apps/sim/.env.example for defaults.
Tech Stack
- Framework: Next.js (App Router)
- Runtime: Bun
- Database: PostgreSQL with Drizzle ORM
- Authentication: Better Auth
- UI: Shadcn, Tailwind CSS
- Streaming Markdown: Streamdown
- State Management: Zustand, TanStack Query
- Flow Editor: ReactFlow
- Docs: Fumadocs
- Monorepo: Turborepo
- Realtime: Socket.io
- Background Jobs: Trigger.dev
- Remote Code Execution: E2B
- Isolated Code Execution: isolated-vm
Contributing
We welcome contributions! Please see our Contributing Guide for details.
License
This project is licensed under the Apache License 2.0 - see the LICENSE file for details.
Made with ❤️ by the Sim Team