105 lines
4.3 KiB
Python
105 lines
4.3 KiB
Python
from datetime import datetime
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from typing import List, Literal, Optional
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from fastapi import APIRouter, Depends, Header, HTTPException, Query
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from letta.orm.errors import NoResultFound
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from letta.schemas.step import Step
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from letta.server.rest_api.utils import get_letta_server
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from letta.server.server import SyncServer
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router = APIRouter(prefix="/steps", tags=["steps"])
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@router.get("/", response_model=List[Step], operation_id="list_steps")
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async def list_steps(
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before: Optional[str] = Query(None, description="Return steps before this step ID"),
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after: Optional[str] = Query(None, description="Return steps after this step ID"),
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limit: Optional[int] = Query(50, description="Maximum number of steps to return"),
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order: Optional[str] = Query("desc", description="Sort order (asc or desc)"),
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start_date: Optional[str] = Query(None, description='Return steps after this ISO datetime (e.g. "2025-01-29T15:01:19-08:00")'),
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end_date: Optional[str] = Query(None, description='Return steps before this ISO datetime (e.g. "2025-01-29T15:01:19-08:00")'),
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model: Optional[str] = Query(None, description="Filter by the name of the model used for the step"),
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agent_id: Optional[str] = Query(None, description="Filter by the ID of the agent that performed the step"),
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trace_ids: Optional[list[str]] = Query(None, description="Filter by trace ids returned by the server"),
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feedback: Optional[Literal["positive", "negative"]] = Query(None, description="Filter by feedback"),
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tags: Optional[list[str]] = Query(None, description="Filter by tags"),
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server: SyncServer = Depends(get_letta_server),
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actor_id: Optional[str] = Header(None, alias="user_id"),
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):
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"""
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List steps with optional pagination and date filters.
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Dates should be provided in ISO 8601 format (e.g. 2025-01-29T15:01:19-08:00)
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"""
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actor = await server.user_manager.get_actor_or_default_async(actor_id=actor_id)
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# Convert ISO strings to datetime objects if provided
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start_dt = datetime.fromisoformat(start_date) if start_date else None
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end_dt = datetime.fromisoformat(end_date) if end_date else None
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return await server.step_manager.list_steps_async(
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actor=actor,
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before=before,
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after=after,
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start_date=start_dt,
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end_date=end_dt,
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limit=limit,
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order=order,
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model=model,
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agent_id=agent_id,
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trace_ids=trace_ids,
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feedback=feedback,
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tags=tags,
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)
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@router.get("/{step_id}", response_model=Step, operation_id="retrieve_step")
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async def retrieve_step(
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step_id: str,
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actor_id: Optional[str] = Header(None, alias="user_id"),
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server: SyncServer = Depends(get_letta_server),
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):
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"""
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Get a step by ID.
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"""
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try:
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actor = await server.user_manager.get_actor_or_default_async(actor_id=actor_id)
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return await server.step_manager.get_step_async(step_id=step_id, actor=actor)
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except NoResultFound:
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raise HTTPException(status_code=404, detail="Step not found")
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@router.patch("/{step_id}/feedback", response_model=Step, operation_id="add_feedback")
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async def add_feedback(
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step_id: str,
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feedback: Optional[Literal["positive", "negative"]],
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actor_id: Optional[str] = Header(None, alias="user_id"),
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server: SyncServer = Depends(get_letta_server),
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):
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"""
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Add feedback to a step.
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"""
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try:
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actor = await server.user_manager.get_actor_or_default_async(actor_id=actor_id)
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return await server.step_manager.add_feedback_async(step_id=step_id, feedback=feedback, actor=actor)
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except NoResultFound:
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raise HTTPException(status_code=404, detail="Step not found")
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@router.patch("/{step_id}/transaction/{transaction_id}", response_model=Step, operation_id="update_step_transaction_id")
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def update_step_transaction_id(
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step_id: str,
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transaction_id: str,
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actor_id: Optional[str] = Header(None, alias="user_id"),
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server: SyncServer = Depends(get_letta_server),
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):
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"""
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Update the transaction ID for a step.
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"""
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actor = server.user_manager.get_user_or_default(user_id=actor_id)
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try:
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return server.step_manager.update_step_transaction_id(actor=actor, step_id=step_id, transaction_id=transaction_id)
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except NoResultFound:
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raise HTTPException(status_code=404, detail="Step not found")
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