mirror of
https://github.com/invoke-ai/InvokeAI
synced 2024-08-30 20:32:17 +00:00
272 lines
9.1 KiB
Python
272 lines
9.1 KiB
Python
# Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
|
|
|
|
from typing import Annotated, List, Optional, Union
|
|
|
|
from fastapi import Body, Path, Query
|
|
from fastapi.responses import Response
|
|
from fastapi.routing import APIRouter
|
|
from pydantic.fields import Field
|
|
|
|
from ...invocations import *
|
|
from ...invocations.baseinvocation import BaseInvocation
|
|
from ...services.graph import (
|
|
EdgeConnection,
|
|
Graph,
|
|
GraphExecutionState,
|
|
NodeAlreadyExecutedError,
|
|
)
|
|
from ...services.item_storage import PaginatedResults
|
|
from ..dependencies import ApiDependencies
|
|
|
|
session_router = APIRouter(prefix="/v1/sessions", tags=["sessions"])
|
|
|
|
|
|
@session_router.post(
|
|
"/",
|
|
operation_id="create_session",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
400: {"description": "Invalid json"},
|
|
},
|
|
)
|
|
async def create_session(
|
|
graph: Optional[Graph] = Body(
|
|
default=None, description="The graph to initialize the session with"
|
|
)
|
|
) -> GraphExecutionState:
|
|
"""Creates a new session, optionally initializing it with an invocation graph"""
|
|
session = ApiDependencies.invoker.create_execution_state(graph)
|
|
return session
|
|
|
|
|
|
@session_router.get(
|
|
"/",
|
|
operation_id="list_sessions",
|
|
responses={200: {"model": PaginatedResults[GraphExecutionState]}},
|
|
)
|
|
async def list_sessions(
|
|
page: int = Query(default=0, description="The page of results to get"),
|
|
per_page: int = Query(default=10, description="The number of results per page"),
|
|
query: str = Query(default="", description="The query string to search for"),
|
|
) -> PaginatedResults[GraphExecutionState]:
|
|
"""Gets a list of sessions, optionally searching"""
|
|
if filter == "":
|
|
result = ApiDependencies.invoker.services.graph_execution_manager.list(
|
|
page, per_page
|
|
)
|
|
else:
|
|
result = ApiDependencies.invoker.services.graph_execution_manager.search(
|
|
query, page, per_page
|
|
)
|
|
return result
|
|
|
|
|
|
@session_router.get(
|
|
"/{session_id}",
|
|
operation_id="get_session",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def get_session(
|
|
session_id: str = Path(description="The id of the session to get"),
|
|
) -> GraphExecutionState:
|
|
"""Gets a session"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
else:
|
|
return session
|
|
|
|
|
|
@session_router.post(
|
|
"/{session_id}/nodes",
|
|
operation_id="add_node",
|
|
responses={
|
|
200: {"model": str},
|
|
400: {"description": "Invalid node or link"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def add_node(
|
|
session_id: str = Path(description="The id of the session"),
|
|
node: Annotated[
|
|
Union[BaseInvocation.get_invocations()], Field(discriminator="type")
|
|
] = Body(description="The node to add"),
|
|
) -> str:
|
|
"""Adds a node to the graph"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
try:
|
|
session.add_node(node)
|
|
ApiDependencies.invoker.services.graph_execution_manager.set(
|
|
session
|
|
) # TODO: can this be done automatically, or add node through an API?
|
|
return session.id
|
|
except NodeAlreadyExecutedError:
|
|
return Response(status_code=400)
|
|
except IndexError:
|
|
return Response(status_code=400)
|
|
|
|
|
|
@session_router.put(
|
|
"/{session_id}/nodes/{node_path}",
|
|
operation_id="update_node",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
400: {"description": "Invalid node or link"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def update_node(
|
|
session_id: str = Path(description="The id of the session"),
|
|
node_path: str = Path(description="The path to the node in the graph"),
|
|
node: Annotated[
|
|
Union[BaseInvocation.get_invocations()], Field(discriminator="type")
|
|
] = Body(description="The new node"),
|
|
) -> GraphExecutionState:
|
|
"""Updates a node in the graph and removes all linked edges"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
try:
|
|
session.update_node(node_path, node)
|
|
ApiDependencies.invoker.services.graph_execution_manager.set(
|
|
session
|
|
) # TODO: can this be done automatically, or add node through an API?
|
|
return session
|
|
except NodeAlreadyExecutedError:
|
|
return Response(status_code=400)
|
|
except IndexError:
|
|
return Response(status_code=400)
|
|
|
|
|
|
@session_router.delete(
|
|
"/{session_id}/nodes/{node_path}",
|
|
operation_id="delete_node",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
400: {"description": "Invalid node or link"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def delete_node(
|
|
session_id: str = Path(description="The id of the session"),
|
|
node_path: str = Path(description="The path to the node to delete"),
|
|
) -> GraphExecutionState:
|
|
"""Deletes a node in the graph and removes all linked edges"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
try:
|
|
session.delete_node(node_path)
|
|
ApiDependencies.invoker.services.graph_execution_manager.set(
|
|
session
|
|
) # TODO: can this be done automatically, or add node through an API?
|
|
return session
|
|
except NodeAlreadyExecutedError:
|
|
return Response(status_code=400)
|
|
except IndexError:
|
|
return Response(status_code=400)
|
|
|
|
|
|
@session_router.post(
|
|
"/{session_id}/edges",
|
|
operation_id="add_edge",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
400: {"description": "Invalid node or link"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def add_edge(
|
|
session_id: str = Path(description="The id of the session"),
|
|
edge: tuple[EdgeConnection, EdgeConnection] = Body(description="The edge to add"),
|
|
) -> GraphExecutionState:
|
|
"""Adds an edge to the graph"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
try:
|
|
session.add_edge(edge)
|
|
ApiDependencies.invoker.services.graph_execution_manager.set(
|
|
session
|
|
) # TODO: can this be done automatically, or add node through an API?
|
|
return session
|
|
except NodeAlreadyExecutedError:
|
|
return Response(status_code=400)
|
|
except IndexError:
|
|
return Response(status_code=400)
|
|
|
|
|
|
# TODO: the edge being in the path here is really ugly, find a better solution
|
|
@session_router.delete(
|
|
"/{session_id}/edges/{from_node_id}/{from_field}/{to_node_id}/{to_field}",
|
|
operation_id="delete_edge",
|
|
responses={
|
|
200: {"model": GraphExecutionState},
|
|
400: {"description": "Invalid node or link"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def delete_edge(
|
|
session_id: str = Path(description="The id of the session"),
|
|
from_node_id: str = Path(description="The id of the node the edge is coming from"),
|
|
from_field: str = Path(description="The field of the node the edge is coming from"),
|
|
to_node_id: str = Path(description="The id of the node the edge is going to"),
|
|
to_field: str = Path(description="The field of the node the edge is going to"),
|
|
) -> GraphExecutionState:
|
|
"""Deletes an edge from the graph"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
try:
|
|
edge = (
|
|
EdgeConnection(node_id=from_node_id, field=from_field),
|
|
EdgeConnection(node_id=to_node_id, field=to_field),
|
|
)
|
|
session.delete_edge(edge)
|
|
ApiDependencies.invoker.services.graph_execution_manager.set(
|
|
session
|
|
) # TODO: can this be done automatically, or add node through an API?
|
|
return session
|
|
except NodeAlreadyExecutedError:
|
|
return Response(status_code=400)
|
|
except IndexError:
|
|
return Response(status_code=400)
|
|
|
|
|
|
@session_router.put(
|
|
"/{session_id}/invoke",
|
|
operation_id="invoke_session",
|
|
responses={
|
|
200: {"model": None},
|
|
202: {"description": "The invocation is queued"},
|
|
400: {"description": "The session has no invocations ready to invoke"},
|
|
404: {"description": "Session not found"},
|
|
},
|
|
)
|
|
async def invoke_session(
|
|
session_id: str = Path(description="The id of the session to invoke"),
|
|
all: bool = Query(
|
|
default=False, description="Whether or not to invoke all remaining invocations"
|
|
),
|
|
) -> None:
|
|
"""Invokes a session"""
|
|
session = ApiDependencies.invoker.services.graph_execution_manager.get(session_id)
|
|
if session is None:
|
|
return Response(status_code=404)
|
|
|
|
if session.is_complete():
|
|
return Response(status_code=400)
|
|
|
|
ApiDependencies.invoker.invoke(session, invoke_all=all)
|
|
return Response(status_code=202)
|