fix: move /execute-stream route BEFORE /{prompt_id} catch-all
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- /execute-stream now at line 260 (was 1448)
- /{prompt_id} now at line 410 (was 257)
- FastAPI will now match /execute-stream correctly
- Fixes 'Connection to server lost' error in analysis page
This commit is contained in:
Lars 2026-04-18 08:45:04 +02:00
parent 35ba2d7fdb
commit 09d1b6f967

View File

@ -254,6 +254,156 @@ def import_prompts(
}
from models import UnifiedPromptCreate, UnifiedPromptUpdate
@router.get("/execute-stream")
async def execute_unified_prompt_stream(
prompt_slug: str = Query(..., description="Slug of prompt to execute"),
debug: bool = Query(False, description="Include debug information (node_states, etc.)"),
save: bool = Query(False, description="Save result to ai_insights"),
session: dict = Depends(require_auth_flexible)
):
"""
Execute a unified prompt with Server-Sent Events (SSE) streaming.
Returns live progress updates during workflow execution:
- execution_started: Workflow has begun
- node_complete: Each node completes
- execution_complete: Final result ready
- execution_failed: Error occurred
Use this endpoint for long-running workflows (>30s) to avoid gateway timeouts.
"""
profile_id = session['profile_id']
# Use default modules/timeframes (SSE doesn't support complex params)
modules = {
'körper': True,
'ernährung': True,
'training': True,
'schlaf': True,
'vitalwerte': True
}
timeframes = {
'körper': 30,
'ernährung': 30,
'training': 14,
'schlaf': 14,
'vitalwerte': 7
}
# Wrapper function for OpenRouter calls
async def workflow_llm_call(prompt: str, model: str = None) -> str:
return await call_openrouter(prompt)
# SSE Event Generator
async def event_stream():
"""Generate Server-Sent Events during workflow execution."""
import asyncio
from asyncio import Queue
# Event queue for progress updates
event_queue = Queue()
# Flag to track execution completion
execution_complete = False
# Define progress callback for streaming updates
async def progress_callback(event_type: str, data: dict):
"""Queue SSE event for streaming to client."""
event_data = {
"type": event_type,
**data
}
await event_queue.put(event_data)
# Start workflow execution in background task
async def execute_workflow_async():
nonlocal execution_complete
try:
# Execute workflow with progress callbacks
result = await execute_prompt_with_data(
prompt_slug=prompt_slug,
profile_id=profile_id,
modules=modules,
timeframes=timeframes,
openrouter_call_func=workflow_llm_call,
enable_debug=debug or save,
progress_callback=progress_callback
)
# Save to ai_insights if requested (same logic as /execute)
if save:
if result['type'] == 'pipeline':
final_output = result.get('output', {})
if isinstance(final_output, dict) and len(final_output) == 1:
content = list(final_output.values())[0]
else:
content = json.dumps(final_output, ensure_ascii=False)
elif result['type'] == 'workflow':
content = _workflow_user_facing_content(result.get('aggregated_result'))
else:
content = result.get('output', '')
if isinstance(content, dict):
content = json.dumps(content, ensure_ascii=False)
# Save to database (minimal metadata for now)
with get_db() as conn:
cur = get_cursor(conn)
cur.execute(
"""INSERT INTO ai_insights (profile_id, scope, content, metadata, created)
VALUES (%s, %s, %s, %s, CURRENT_TIMESTAMP)""",
(profile_id, prompt_slug, content, json.dumps({"prompt_type": result['type']}))
)
conn.commit()
except Exception as e:
# Queue error event
await event_queue.put({
"type": "execution_failed",
"error": str(e)
})
finally:
execution_complete = True
# Start workflow execution in background
import asyncio
execution_task = asyncio.create_task(execute_workflow_async())
# Stream events from queue
try:
while not execution_complete or not event_queue.empty():
try:
# Wait for event with timeout
event = await asyncio.wait_for(event_queue.get(), timeout=0.5)
yield f"data: {json.dumps(event, ensure_ascii=False)}\n\n"
except asyncio.TimeoutError:
# Send keepalive ping
yield f": keepalive\n\n"
continue
# Wait for execution task to complete
await execution_task
except Exception as e:
# Send final error event
error_event = {
"type": "execution_failed",
"error": str(e)
}
yield f"data: {json.dumps(error_event, ensure_ascii=False)}\n\n"
return StreamingResponse(
event_stream(),
media_type="text/event-stream",
headers={
"Cache-Control": "no-cache",
"Connection": "keep-alive",
"X-Accel-Buffering": "no" # Disable nginx buffering
}
# NOTE: /execute-stream MUST be defined BEFORE /{prompt_id} to avoid route conflicts
# FastAPI matches routes in order, so specific routes must come before catch-all patterns
@ -1445,155 +1595,6 @@ def reset_prompt_to_default(prompt_id: str, session: dict=Depends(require_admin)
# ══════════════════════════════════════════════════════════════════════════════
from prompt_executor import execute_prompt_with_data
from models import UnifiedPromptCreate, UnifiedPromptUpdate
@router.get("/execute-stream")
async def execute_unified_prompt_stream(
prompt_slug: str = Query(..., description="Slug of prompt to execute"),
debug: bool = Query(False, description="Include debug information (node_states, etc.)"),
save: bool = Query(False, description="Save result to ai_insights"),
session: dict = Depends(require_auth_flexible)
):
"""
Execute a unified prompt with Server-Sent Events (SSE) streaming.
Returns live progress updates during workflow execution:
- execution_started: Workflow has begun
- node_complete: Each node completes
- execution_complete: Final result ready
- execution_failed: Error occurred
Use this endpoint for long-running workflows (>30s) to avoid gateway timeouts.
"""
profile_id = session['profile_id']
# Use default modules/timeframes (SSE doesn't support complex params)
modules = {
'körper': True,
'ernährung': True,
'training': True,
'schlaf': True,
'vitalwerte': True
}
timeframes = {
'körper': 30,
'ernährung': 30,
'training': 14,
'schlaf': 14,
'vitalwerte': 7
}
# Wrapper function for OpenRouter calls
async def workflow_llm_call(prompt: str, model: str = None) -> str:
return await call_openrouter(prompt)
# SSE Event Generator
async def event_stream():
"""Generate Server-Sent Events during workflow execution."""
import asyncio
from asyncio import Queue
# Event queue for progress updates
event_queue = Queue()
# Flag to track execution completion
execution_complete = False
# Define progress callback for streaming updates
async def progress_callback(event_type: str, data: dict):
"""Queue SSE event for streaming to client."""
event_data = {
"type": event_type,
**data
}
await event_queue.put(event_data)
# Start workflow execution in background task
async def execute_workflow_async():
nonlocal execution_complete
try:
# Execute workflow with progress callbacks
result = await execute_prompt_with_data(
prompt_slug=prompt_slug,
profile_id=profile_id,
modules=modules,
timeframes=timeframes,
openrouter_call_func=workflow_llm_call,
enable_debug=debug or save,
progress_callback=progress_callback
)
# Save to ai_insights if requested (same logic as /execute)
if save:
if result['type'] == 'pipeline':
final_output = result.get('output', {})
if isinstance(final_output, dict) and len(final_output) == 1:
content = list(final_output.values())[0]
else:
content = json.dumps(final_output, ensure_ascii=False)
elif result['type'] == 'workflow':
content = _workflow_user_facing_content(result.get('aggregated_result'))
else:
content = result.get('output', '')
if isinstance(content, dict):
content = json.dumps(content, ensure_ascii=False)
# Save to database (minimal metadata for now)
with get_db() as conn:
cur = get_cursor(conn)
cur.execute(
"""INSERT INTO ai_insights (profile_id, scope, content, metadata, created)
VALUES (%s, %s, %s, %s, CURRENT_TIMESTAMP)""",
(profile_id, prompt_slug, content, json.dumps({"prompt_type": result['type']}))
)
conn.commit()
except Exception as e:
# Queue error event
await event_queue.put({
"type": "execution_failed",
"error": str(e)
})
finally:
execution_complete = True
# Start workflow execution in background
import asyncio
execution_task = asyncio.create_task(execute_workflow_async())
# Stream events from queue
try:
while not execution_complete or not event_queue.empty():
try:
# Wait for event with timeout
event = await asyncio.wait_for(event_queue.get(), timeout=0.5)
yield f"data: {json.dumps(event, ensure_ascii=False)}\n\n"
except asyncio.TimeoutError:
# Send keepalive ping
yield f": keepalive\n\n"
continue
# Wait for execution task to complete
await execution_task
except Exception as e:
# Send final error event
error_event = {
"type": "execution_failed",
"error": str(e)
}
yield f"data: {json.dumps(error_event, ensure_ascii=False)}\n\n"
return StreamingResponse(
event_stream(),
media_type="text/event-stream",
headers={
"Cache-Control": "no-cache",
"Connection": "keep-alive",
"X-Accel-Buffering": "no" # Disable nginx buffering
}
)