Follow-up of #32130. The "/create" generator produced a start node whose file variable lacked the required allowed_file_types, so Studio rejected the draft ("supported file types is required") for prompts like "take a file, extract its content, summarize". Root cause: the builder cheatsheet was one static blob that never documented allowed_file_types/allowed_file_upload_methods, and nothing backfilled them. - builder_prompts: split the monolithic cheatsheet into a per-node-type map assembled dynamically from the planner's chosen node types (build_node_config_cheatsheet / get_builder_system_prompt(mode, node_types)), so the builder prompt carries each type's FULL schema and drops config for unused node types (~45% smaller prompt for small workflows). The start snippet now documents the file upload fields. - runner: pass the plan's node-type set into the builder prompt; add _normalize_start_file_variables as a final backstop that fills allowed_file_types / upload methods, drops "custom" without extensions, and promotes a paragraph var consumed by a document-extractor to a file type. - runner: fix the variable-reference walker mistaking any 2-element string list (allowed_file_upload_methods, a 2-option select) for a [node_id, var] selector via _NON_SELECTOR_LIST_KEYS. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Dify Backend API
Setup and Run
Important
In the v1.3.0 release,
poetryhas been replaced withuvas the package manager for Dify API backend service.
uv and pnpm are required to run the setup and development commands below.
Using scripts (recommended)
The scripts resolve paths relative to their location, so you can run them from anywhere.
-
Run setup (copies env files and installs dependencies).
./dev/setup -
Review
api/.env,web/.env.local, anddocker/middleware.envvalues (see theSECRET_KEYnote below). -
Start middleware (PostgreSQL/Redis/Weaviate).
./dev/start-docker-compose -
Start backend (runs migrations first).
./dev/start-api -
Start Dify web service.
./dev/start-web./dev/setupand./dev/start-webinstall JavaScript dependencies through the repository root workspace, so you do not need a separatecd web && pnpm installstep. -
Set up your application by visiting
http://localhost:3000. -
Start the worker service (async and scheduler tasks, runs from
api)../dev/start-worker -
Optional: start Celery Beat (scheduled tasks).
./dev/start-beat
Environment notes
Important
When the frontend and backend run on different subdomains, set COOKIE_DOMAIN to the site’s top-level domain (e.g.,
example.com). The frontend and backend must be under the same top-level domain in order to share authentication cookies.
-
Generate a
SECRET_KEYin the.envfile.bash for Linux
sed -i "/^SECRET_KEY=/c\\SECRET_KEY=$(openssl rand -base64 42)" .envbash for Mac
secret_key=$(openssl rand -base64 42) sed -i '' "/^SECRET_KEY=/c\\ SECRET_KEY=${secret_key}" .env
Testing
-
Install dependencies for both the backend and the test environment
cd api uv sync --group dev -
Run the tests locally with mocked system environment variables in
tool.pytest_envsection inpyproject.toml, more can check Claude.mdcd api uv run pytest # Run all tests uv run pytest tests/unit_tests/ # Unit tests only uv run pytest tests/integration_tests/ # Integration tests # Code quality ./dev/reformat # Run all formatters and linters uv run ruff check --fix ./ # Fix linting issues uv run ruff format ./ # Format code uv run pyrefly check # Type checking
Generate TS stub
uv run dev/generate_swagger_specs.py --output-dir openapi
use https://jsontotable.org/openapi-to-typescript to convert to typescript