feat: add workflows table & service

invokeai/app/api/dependencies.py

@@ -30,6 +30,7 @@ from ..services.shared.default_graphs import create_system_graphs
 from ..services.shared.graph import GraphExecutionState, LibraryGraph
 from ..services.shared.sqlite import SqliteDatabase
 from ..services.urls.urls_default import LocalUrlService
+from ..services.workflow_records.workflow_records_sqlite import SqliteWorkflowRecordsStorage
 from .events import FastAPIEventService
 
 
@@ -90,6 +91,7 @@ class ApiDependencies:
         session_processor = DefaultSessionProcessor()
         session_queue = SqliteSessionQueue(db=db)
         urls = LocalUrlService()
+        workflow_records = SqliteWorkflowRecordsStorage(db=db)
 
         services = InvocationServices(
             board_image_records=board_image_records,
@@ -114,6 +116,7 @@ class ApiDependencies:
             session_processor=session_processor,
             session_queue=session_queue,
             urls=urls,
+            workflow_records=workflow_records,
         )
 
         create_system_graphs(services.graph_library)

invokeai/app/api/routers/workflows.py

@@ -0,0 +1,20 @@
+from fastapi import APIRouter, Body, Path
+
+from invokeai.app.api.dependencies import ApiDependencies
+from invokeai.app.services.workflow_records.workflow_records_common import WorkflowField
+
+workflows_router = APIRouter(prefix="/v1/workflows", tags=["workflows"])
+
+
+@workflows_router.get(
+    "/i/{workflow_id}",
+    operation_id="get_workflow",
+    responses={
+        200: {"model": WorkflowField},
+    },
+)
+async def get_workflow(
+    workflow_id: str = Path(description="The workflow to get"),
+) -> WorkflowField:
+    """Gets a workflow"""
+    return ApiDependencies.invoker.services.workflow_records.get(workflow_id)