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4 Commits
| Author | SHA1 | Message | Date | |
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Jason
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1fb5acee39
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fix(gateway): prevent 400 error when client sends context with configurable (#1660)
* fix(gateway): prevent 400 error when client sends context with configurable Fixes #1290 LangGraph >= 0.6.0 rejects requests that include both 'configurable' and 'context' in the run config. If the client (e.g. useStream hook) sends a 'context' key, we now honour it and skip creating our own 'configurable' dict to avoid the conflict. When no 'context' is provided, we fall back to the existing 'configurable' behaviour with thread_id. * fix(gateway): address review feedback — warn on dual keys, fix runtime injection, add tests - Log a warning when client sends both 'context' and 'configurable' so it's no longer silently dropped (reviewer feedback) - Ensure thread_id is available in config['context'] when present so middlewares can find it there too - Add test coverage for the context path, the both-keys-present case, passthrough of other keys, and the no-config fallback * style: ruff format services.py --------- Co-authored-by: JasonOA888 <JasonOA888@users.noreply.github.com> Co-authored-by: Willem Jiang <willem.jiang@gmail.com> |
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rayhpeng
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c2ff59a5b1
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fix(gateway): merge context field into configurable for langgraph-compat runs (#1699) (#1707)
The langgraph-compat layer dropped the DeerFlow-specific `context` field from run requests, causing agent config (subagent_enabled, is_plan_mode, thinking_enabled, etc.) to fall back to defaults. Add `context` to RunCreateRequest and merge allowlisted keys into config.configurable in start_run, with existing configurable values taking precedence. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
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d 🔹
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6ff60f2af1
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fix(gateway): forward assistant_id as agent_name in build_run_config (#1667)
* fix(gateway): forward assistant_id as agent_name in build_run_config Fixes #1644 When the LangGraph Platform-compatible /runs endpoint receives a custom assistant_id (e.g. 'finalis'), the Gateway's build_run_config() silently ignored it — configurable['agent_name'] was never set, so make_lead_agent fell through to the default lead agent and SOUL.md was never loaded. Root cause (introduced in #1403): resolve_agent_factory() correctly falls back to make_lead_agent for all assistant_id values, but build_run_config() had no assistant_id parameter and never injected configurable['agent_name']. The full call chain: POST /runs (assistant_id='finalis') → resolve_agent_factory('finalis') # returns make_lead_agent ✓ → build_run_config(thread_id, ...) # no agent_name injected ✗ → make_lead_agent(config) → cfg.get('agent_name') → None → load_agent_soul(None) → base SOUL.md (doesn't exist) → None Fix: - Add keyword-only parameter to build_run_config(). - When assistant_id is set and differs from 'lead_agent', inject it as configurable['agent_name'] (matching the channel manager's existing _resolve_run_params() logic for IM channels). - Honour an explicit configurable['agent_name'] in the request body; assistant_id mapping only fills the gap when it is absent. - Remove stale log-only branch from resolve_agent_factory(); update docstring to explain the factory/configurable split. Tests added (test_gateway_services.py): - Custom assistant_id injects configurable['agent_name'] - 'lead_agent' assistant_id does NOT inject agent_name - None assistant_id does NOT inject agent_name - Explicit configurable['agent_name'] in request is not overwritten - resolve_agent_factory returns make_lead_agent for all inputs * style: format with ruff * fix: validate and normalize assistant_id to prevent path traversal Addresses Copilot review: strip/lowercase/replace underscores and reject names that don't match [a-z0-9-]+, consistent with ChannelManager._normalize_custom_agent_name(). --------- Co-authored-by: voidborne-d <voidborne-d@users.noreply.github.com> |
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rayhpeng
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34e835bc33
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feat(gateway): implement LangGraph Platform API in Gateway, replace langgraph-cli (#1403)
* feat(gateway): implement LangGraph Platform API in Gateway, replace langgraph-cli
Implement all core LangGraph Platform API endpoints in the Gateway,
allowing it to fully replace the langgraph-cli dev server for local
development. This eliminates a heavyweight dependency and simplifies
the development stack.
Changes:
- Add runs lifecycle endpoints (create, stream, wait, cancel, join)
- Add threads CRUD and search endpoints
- Add assistants compatibility endpoints (search, get, graph, schemas)
- Add StreamBridge (in-memory pub/sub for SSE) and async provider
- Add RunManager with atomic create_or_reject (eliminates TOCTOU race)
- Add worker with interrupt/rollback cancel actions and runtime context injection
- Route /api/langgraph/* to Gateway in nginx config
- Skip langgraph-cli startup by default (SKIP_LANGGRAPH_SERVER=0 to restore)
- Add unit tests for RunManager, SSE format, and StreamBridge
* fix: drain bridge queue on client disconnect to prevent backpressure
When on_disconnect=continue, keep consuming events from the bridge
without yielding, so the worker is not blocked by a full queue.
Only on_disconnect=cancel breaks out immediately.
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* fix: remove pytest import
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* fix: Fix default stream_mode to ["values", "messages-tuple"]
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* fix: Remove unused if_exists field from ThreadCreateRequest
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
* fix: address review comments on gateway LangGraph API
- Mount runs.py router in app.py (missing include_router)
- Normalize interrupt_before/after "*" to node list before run_agent()
- Use entry.id for SSE event ID instead of counter
- Drain bridge queue on disconnect when on_disconnect=continue
- Reuse serialization helper in wait_run() for consistent wire format
- Reject unsupported multitask_strategy with 400
- Remove SKIP_LANGGRAPH_SERVER fallback, always use Gateway
* feat: extract app.state access into deps.py
Encapsulate read/write operations for singleton objects (RunManager,
StreamBridge, checkpointer) held in app.state into a shared utility,
reducing repeated access patterns across router modules.
* feat: extract deerflow.runtime.serialization module with tests
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* refactor: replace duplicated serialization with deerflow.runtime.serialization
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: extract app/gateway/services.py with run lifecycle logic
Create a service layer that centralizes SSE formatting, input/config
normalization, and run lifecycle management. Router modules will delegate
to these functions instead of using private cross-imported helpers.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* refactor: wire routers to use services layer, remove cross-module private imports
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* style: apply ruff formatting to refactored files
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat(runtime): support LangGraph dev server and add compat route
- Enable official LangGraph dev server for local development workflow
- Decouple runtime components from agents package for better separation
- Provide gateway-backed fallback route when dev server is skipped
- Simplify lifecycle management using context manager in gateway
* feat(runtime): add Store providers with auto-backend selection
- Add async_provider.py and provider.py under deerflow/runtime/store/
- Support memory, sqlite, postgres backends matching checkpointer config
- Integrate into FastAPI lifespan via AsyncExitStack in deps.py
- Replace hardcoded InMemoryStore with config-driven factory
* refactor(gateway): migrate thread management from checkpointer to Store and resolve multiple endpoint failures
- Add Store-backed CRUD helpers (_store_get, _store_put, _store_upsert)
- Replace checkpoint-scanning search with two-phase strategy:
phase 1 reads Store (O(threads)), phase 2 backfills from checkpointer
for legacy/LangGraph Server threads with lazy migration
- Extend Store record schema with values field for title persistence
- Sync thread title from checkpoint to Store after run completion
- Fix /threads/{id}/runs/{run_id}/stream 405 by accepting both
GET and POST methods; POST handles interrupt/rollback actions
- Fix /threads/{id}/state 500 by separating read_config and
write_config, adding checkpoint_ns to configurable, and
shallow-copying checkpoint/metadata before mutation
- Sync title to Store on state update for immediate search reflection
- Move _upsert_thread_in_store into services.py, remove duplicate logic
- Add _sync_thread_title_after_run: await run task, read final
checkpoint title, write back to Store record
- Spawn title sync as background task from start_run when Store exists
* refactor(runtime): deduplicate store and checkpointer provider logic
Extract _ensure_sqlite_parent_dir() helper into checkpointer/provider.py
and use it in all three places that previously inlined the same mkdir logic.
Consolidate duplicate error constants in store/async_provider.py by importing
from store/provider.py instead of redefining them.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* refactor(runtime): move SQLite helpers to runtime/store, checkpointer imports from store
_resolve_sqlite_conn_str and _ensure_sqlite_parent_dir now live in
runtime/store/provider.py. agents/checkpointer/provider and
agents/checkpointer/async_provider import from there, reversing the
previous dependency direction (store → checkpointer becomes
checkpointer → store).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* refactor(runtime): extract SQLite helpers into runtime/store/_sqlite_utils.py
Move resolve_sqlite_conn_str and ensure_sqlite_parent_dir out of
checkpointer/provider.py into a dedicated _sqlite_utils module.
Functions are now public (no underscore prefix), making cross-module
imports semantically correct. All four provider files import from
the single shared location.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(gateway): use adelete_thread to fully remove thread checkpoints on delete
AsyncSqliteSaver has no adelete method — the previous hasattr check
always evaluated to False, silently leaving all checkpoint rows in the
database. Switch to adelete_thread(thread_id) which deletes every
checkpoint and pending-write row for the thread across all namespaces
(including sub-graph checkpoints).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(gateway): remove dead bridge_cm/ckpt_cm code and fix StrEnum lint
app.py had unreachable code after the async-with lifespan refactor:
bridge_cm and ckpt_cm were referenced but never defined (F821), and
the channel service startup/shutdown was outside the langgraph_runtime
block so it never ran. Move channel service lifecycle inside the
async-with block where it belongs.
Replace str+Enum inheritance in RunStatus and DisconnectMode with
StrEnum as suggested by UP042.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* style: format with ruff
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: JeffJiang <for-eleven@hotmail.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
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