fix: Remove deprecated AI Chat Completions and Models List API implementations

This commit is contained in:
bsiggel
2026-03-19 23:10:00 +00:00
parent 48d440a860
commit 71f583481a
3 changed files with 0 additions and 510 deletions

View File

@@ -1,386 +0,0 @@
"""AI Chat Completions API
OpenAI-compatible Chat Completions endpoint with xAI/LangChain backend.
Features:
- File Search (RAG) via xAI Collections
- Web Search via xAI web_search tool
- Aktenzeichen-based automatic collection lookup
- Multiple tools simultaneously
- Clean, reusable architecture for future LLM endpoints
Note: Streaming is not supported (Motia limitation - returns clear error).
Reusability:
- extract_request_params(): Parse requests for any LLM endpoint
- resolve_collection_id(): Auto-detect Aktenzeichen, lookup collection
- initialize_model_with_tools(): Bind tools to any LangChain model
- invoke_and_format_response(): Standard OpenAI response formatting
"""
import time
from typing import Any, Dict, List, Optional
from motia import FlowContext, http, ApiRequest, ApiResponse
config = {
"name": "AI Chat Completions API",
"description": "OpenAI-compatible Chat Completions API with xAI backend",
"flows": ["ai-general"],
"triggers": [
http("POST", "/ai/v1/chat/completions"),
http("POST", "/v1/chat/completions")
],
}
# ============================================================================
# MAIN HANDLER
# ============================================================================
async def handler(request: ApiRequest, ctx: FlowContext[Any]) -> ApiResponse:
"""
OpenAI-compatible Chat Completions endpoint.
Returns:
ApiResponse with chat completion or error
"""
ctx.logger.info("=" * 80)
ctx.logger.info("🤖 AI Chat Completions API")
ctx.logger.info("=" * 80)
try:
# 1. Parse and validate request
params = extract_request_params(request, ctx)
# 2. Check streaming (not supported)
if params['stream']:
return ApiResponse(
status=501,
body={
'error': {
'message': 'Streaming is not supported. Please set stream=false.',
'type': 'not_implemented',
'param': 'stream'
}
}
)
# 3. Resolve collection (explicit ID or Aktenzeichen lookup)
collection_id = await resolve_collection_id(
params['collection_id'],
params['messages'],
params['enable_web_search'],
ctx
)
# 4. Validate: collection or web_search required
if not collection_id and not params['enable_web_search']:
return ApiResponse(
status=400,
body={
'error': {
'message': 'Either collection_id or enable_web_search must be provided',
'type': 'invalid_request_error'
}
}
)
# 5. Initialize LLM with tools
model_with_tools = await initialize_model_with_tools(
model_name=params['model'],
temperature=params['temperature'],
max_tokens=params['max_tokens'],
collection_id=collection_id,
enable_web_search=params['enable_web_search'],
web_search_config=params['web_search_config'],
ctx=ctx
)
# 6. Invoke LLM
completion_id = f"chatcmpl-{int(time.time())}"
response = await invoke_and_format_response(
model=model_with_tools,
messages=params['messages'],
completion_id=completion_id,
model_name=params['model'],
ctx=ctx
)
ctx.logger.info(f"✅ Completion successful {len(response.body['choices'][0]['message']['content'])} chars")
return response
except ValueError as e:
ctx.logger.error(f"❌ Validation error: {e}")
return ApiResponse(
status=400,
body={'error': {'message': str(e), 'type': 'invalid_request_error'}}
)
except Exception as e:
ctx.logger.error(f"❌ Error: {e}")
return ApiResponse(
status=500,
body={'error': {'message': 'Internal server error', 'type': 'server_error'}}
)
# ============================================================================
# REUSABLE HELPER FUNCTIONS
# ============================================================================
def extract_request_params(request: ApiRequest, ctx: FlowContext) -> Dict[str, Any]:
"""
Extract and validate request parameters.
Returns:
Dict with validated parameters
Raises:
ValueError: If validation fails
"""
body = request.body or {}
if not isinstance(body, dict):
raise ValueError("Request body must be JSON object")
messages = body.get('messages', [])
if not messages or not isinstance(messages, list):
raise ValueError("messages must be non-empty array")
# Extract parameters with defaults
params = {
'model': body.get('model', 'grok-4-1-fast-reasoning'),
'messages': messages,
'temperature': body.get('temperature', 0.7),
'max_tokens': body.get('max_tokens'),
'stream': body.get('stream', False),
'extra_body': body.get('extra_body', {}),
}
# Handle enable_web_search (body or extra_body)
params['enable_web_search'] = body.get(
'enable_web_search',
params['extra_body'].get('enable_web_search', False)
)
# Handle web_search_config
params['web_search_config'] = body.get(
'web_search_config',
params['extra_body'].get('web_search_config', {})
)
# Handle collection_id (multiple sources)
params['collection_id'] = (
body.get('collection_id') or
body.get('custom_collection_id') or
params['extra_body'].get('collection_id')
)
# Log concisely
ctx.logger.info(f"📋 Model: {params['model']} | Stream: {params['stream']}")
ctx.logger.info(f"📋 Web Search: {params['enable_web_search']} | Collection: {params['collection_id'] or 'auto'}")
ctx.logger.info(f"📨 Messages: {len(messages)}")
return params
async def resolve_collection_id(
explicit_collection_id: Optional[str],
messages: List[Dict[str, Any]],
enable_web_search: bool,
ctx: FlowContext
) -> Optional[str]:
"""
Resolve collection ID from explicit ID or Aktenzeichen auto-detection.
Args:
explicit_collection_id: Explicitly provided collection ID
messages: Chat messages (for Aktenzeichen extraction)
enable_web_search: Whether web search is enabled
ctx: Motia context
Returns:
Collection ID or None
"""
# Explicit collection ID takes precedence
if explicit_collection_id:
ctx.logger.info(f"🔍 Using explicit collection: {explicit_collection_id}")
return explicit_collection_id
# Try Aktenzeichen auto-detection from first user message
from services.aktenzeichen_utils import (
extract_aktenzeichen,
normalize_aktenzeichen,
remove_aktenzeichen
)
for msg in messages:
if msg.get('role') == 'user':
content = msg.get('content', '')
aktenzeichen_raw = extract_aktenzeichen(content)
if aktenzeichen_raw:
aktenzeichen = normalize_aktenzeichen(aktenzeichen_raw)
ctx.logger.info(f"🔍 Aktenzeichen detected: {aktenzeichen}")
collection_id = await lookup_collection_by_aktenzeichen(aktenzeichen, ctx)
if collection_id:
# Clean Aktenzeichen from message
msg['content'] = remove_aktenzeichen(content)
ctx.logger.info(f"✅ Collection found: {collection_id}")
return collection_id
else:
ctx.logger.warning(f"⚠️ No collection for Aktenzeichen: {aktenzeichen}")
break # Only check first user message
return None
async def initialize_model_with_tools(
model_name: str,
temperature: float,
max_tokens: Optional[int],
collection_id: Optional[str],
enable_web_search: bool,
web_search_config: Dict[str, Any],
ctx: FlowContext
) -> Any:
"""
Initialize LangChain model with tool bindings (file_search, web_search).
Returns:
Model instance with tools bound
"""
from services.langchain_xai_service import LangChainXAIService
service = LangChainXAIService(ctx)
# Create base model
model = service.get_chat_model(
model=model_name,
temperature=temperature,
max_tokens=max_tokens
)
# Bind tools
model_with_tools = service.bind_tools(
model=model,
collection_id=collection_id,
enable_web_search=enable_web_search,
web_search_config=web_search_config,
max_num_results=10
)
return model_with_tools
async def invoke_and_format_response(
model: Any,
messages: List[Dict[str, Any]],
completion_id: str,
model_name: str,
ctx: FlowContext
) -> ApiResponse:
"""
Invoke LLM and format response in OpenAI-compatible format.
Returns:
ApiResponse with chat completion
"""
from services.langchain_xai_service import LangChainXAIService
service = LangChainXAIService(ctx)
result = await service.invoke_chat(model, messages)
# Extract content (handle structured responses)
if hasattr(result, 'content'):
raw = result.content
if isinstance(raw, list):
# Extract text parts from structured response
text_parts = [
item.get('text', '')
for item in raw
if isinstance(item, dict) and item.get('type') == 'text'
]
content = ''.join(text_parts) or str(raw)
else:
content = raw
else:
content = str(result)
# Extract usage metadata (if available)
usage = {"prompt_tokens": 0, "completion_tokens": 0, "total_tokens": 0}
if hasattr(result, 'usage_metadata'):
u = result.usage_metadata
usage = {
"prompt_tokens": getattr(u, 'input_tokens', 0),
"completion_tokens": getattr(u, 'output_tokens', 0),
"total_tokens": getattr(u, 'input_tokens', 0) + getattr(u, 'output_tokens', 0)
}
# Log complete LLM response
ctx.logger.info("=" * 80)
ctx.logger.info("📤 LLM RESPONSE")
ctx.logger.info("-" * 80)
ctx.logger.info(f"Model: {model_name}")
ctx.logger.info(f"Completion ID: {completion_id}")
ctx.logger.info(f"Usage: {usage['prompt_tokens']} prompt + {usage['completion_tokens']} completion = {usage['total_tokens']} total tokens")
ctx.logger.info("-" * 80)
ctx.logger.info("Content:")
ctx.logger.info(content)
ctx.logger.info("=" * 80)
# Format OpenAI-compatible response
response_body = {
'id': completion_id,
'object': 'chat.completion',
'created': int(time.time()),
'model': model_name,
'choices': [{
'index': 0,
'message': {'role': 'assistant', 'content': content},
'finish_reason': 'stop'
}],
'usage': usage
}
return ApiResponse(status=200, body=response_body)
async def lookup_collection_by_aktenzeichen(
aktenzeichen: str,
ctx: FlowContext
) -> Optional[str]:
"""
Lookup xAI Collection ID by Aktenzeichen via EspoCRM.
Args:
aktenzeichen: Normalized Aktenzeichen (e.g., "1234/56")
ctx: Motia context
Returns:
Collection ID or None if not found
"""
try:
from services.espocrm import EspoCRMAPI
espocrm = EspoCRMAPI(ctx)
search_result = await espocrm.search_entities(
entity_type='Raeumungsklage',
where=[{
'type': 'equals',
'attribute': 'advowareAkteBezeichner',
'value': aktenzeichen
}],
select=['id', 'xaiCollectionId'],
maxSize=1
)
if search_result and len(search_result) > 0:
return search_result[0].get('xaiCollectionId')
return None
except Exception as e:
ctx.logger.error(f"❌ Collection lookup failed: {e}")
return None

View File

@@ -1,124 +0,0 @@
"""AI Models List API
OpenAI-compatible models list endpoint for OpenWebUI and other clients.
Returns all available AI models that can be used with /ai/chat/completions.
"""
import time
from typing import Any
from motia import FlowContext, http, ApiRequest, ApiResponse
config = {
"name": "AI Models List API",
"description": "OpenAI-compatible models endpoint - lists available AI models",
"flows": ["ai-general"],
"triggers": [
http("GET", "/ai/v1/models"),
http("GET", "/v1/models"),
http("GET", "/ai/models")
],
}
async def handler(request: ApiRequest, ctx: FlowContext[Any]) -> ApiResponse:
"""
OpenAI-compatible models list endpoint.
Returns list of available models for OpenWebUI and other clients.
Response Format (OpenAI compatible):
{
"object": "list",
"data": [
{
"id": "grok-4.20-beta-0309-reasoning",
"object": "model",
"created": 1735689600,
"owned_by": "xai",
"permission": [],
"root": "grok-4.20-beta-0309-reasoning",
"parent": null
}
]
}
"""
ctx.logger.info("📋 Models list requested")
try:
# Define available models
# These correspond to models supported by /ai/chat/completions
current_timestamp = int(time.time())
models = [
{
"id": "grok-4.20-beta-0309-reasoning",
"object": "model",
"created": current_timestamp,
"owned_by": "xai",
"permission": [],
"root": "grok-4.20-beta-0309-reasoning",
"parent": None,
"capabilities": {
"file_search": True,
"web_search": True,
"streaming": True,
"reasoning": True
}
},
{
"id": "grok-4.20-multi-agent-beta-0309",
"object": "model",
"created": current_timestamp,
"owned_by": "xai",
"permission": [],
"root": "grok-4.20-multi-agent-beta-0309",
"parent": None,
"capabilities": {
"file_search": True,
"web_search": True,
"streaming": True,
"reasoning": True,
"multi_agent": True
}
},
{
"id": "grok-4-1-fast-reasoning",
"object": "model",
"created": current_timestamp,
"owned_by": "xai",
"permission": [],
"root": "grok-4-1-fast-reasoning",
"parent": None,
"capabilities": {
"file_search": True,
"web_search": True,
"streaming": True,
"reasoning": True
}
}
]
# Build OpenAI-compatible response
response_body = {
"object": "list",
"data": models
}
ctx.logger.info(f"✅ Returned {len(models)} models")
return ApiResponse(
status=200,
body=response_body
)
except Exception as e:
ctx.logger.error(f"❌ Error listing models: {e}")
return ApiResponse(
status=500,
body={
"error": {
"message": str(e),
"type": "server_error"
}
}
)