nova-api/api/load_balancing.py
henceiusegentoo 1e2a596df3 Added key validation by API-key instead of IP
Added rate limited keys getting logged in a database
2023-09-23 21:41:48 +02:00

84 lines
2.4 KiB
Python

import random
import asyncio
from db.key_validation import cached_key_is_rated
import providers
async def _get_module_name(module) -> str:
name = module.__name__
if '.' in name:
return name.split('.')[-1]
return name
async def balance_chat_request(payload: dict) -> dict:
"""
### Load balance the chat completion request between chat providers.
Providers are sorted by streaming and models. Target (provider.chat_completion) is returned
"""
providers_available = []
for provider_module in providers.MODULES:
if payload['stream'] and not provider_module.STREAMING:
continue
if payload['model'] not in provider_module.MODELS:
continue
providers_available.append(provider_module)
if not providers_available:
raise ValueError(f'The model "{payload["model"]}" is not available. MODEL_UNAVAILABLE')
provider = random.choice(providers_available)
target = await provider.chat_completion(**payload)
while True:
key = target.get('provider_auth')
if not await cached_key_is_rated(key):
break
else:
target = await provider.chat_completion(**payload)
module_name = await _get_module_name(provider)
target['module'] = module_name
return target
async def balance_organic_request(request: dict) -> dict:
"""
### Load balance non-chat completion request
Balances between other "organic" providers which respond in the desired format already.
Organic providers are used for non-chat completions, such as moderation and other paths.
"""
providers_available = []
if not request.get('headers'):
request['headers'] = {
'Content-Type': 'application/json'
}
for provider_module in providers.MODULES:
if not provider_module.ORGANIC:
continue
if '/moderations' in request['path']:
if not provider_module.MODERATIONS:
continue
providers_available.append(provider_module)
provider = random.choice(providers_available)
target = await provider.organify(request)
module_name = await _get_module_name(provider)
target['module'] = module_name
return target
if __name__ == '__main__':
req = asyncio.run(balance_chat_request(payload={'model': 'gpt-3.5-turbo', 'stream': True}))
print(req['url'])