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import g4f
from g4f.Provider import __providers__
import json
from flask import request, Flask
from .internet import get_search_message
from g4f import debug, version
debug.logging = True
class Backend_Api:
def __init__(self, app: Flask) -> None:
self.app: Flask = app
self.routes = {
'/backend-api/v2/models': {
'function': self.models,
'methods' : ['GET']
},
'/backend-api/v2/providers': {
'function': self.providers,
'methods' : ['GET']
},
'/backend-api/v2/version': {
'function': self.version,
'methods' : ['GET']
},
'/backend-api/v2/conversation': {
'function': self._conversation,
'methods': ['POST']
},
'/backend-api/v2/gen.set.summarize:title': {
'function': self._gen_title,
'methods': ['POST']
},
'/backend-api/v2/error': {
'function': self.error,
'methods': ['POST']
}
}
def error(self):
print(request.json)
return 'ok', 200
def models(self):
return g4f._all_models
def providers(self):
return [
provider.__name__ for provider in __providers__ if provider.working
]
def version(self):
return {
"version": version.utils.current_version,
"lastet_version": version.utils.latest_version,
}
def _gen_title(self):
return {
'title': ''
}
def _conversation(self):
#jailbreak = request.json['jailbreak']
messages = request.json['meta']['content']['parts']
if request.json.get('internet_access'):
messages[-1]["content"] = get_search_message(messages[-1]["content"])
model = request.json.get('model')
model = model if model else g4f.models.default
provider = request.json.get('provider', '').replace('g4f.Provider.', '')
provider = provider if provider and provider != "Auto" else None
def try_response():
try:
first = True
for chunk in g4f.ChatCompletion.create(
model=model,
provider=provider,
messages=messages,
stream=True,
ignore_stream_and_auth=True
):
if first:
first = False
yield json.dumps({
'type' : 'provider',
'provider': g4f.get_last_provider(True)
}) + "\n"
yield json.dumps({
'type' : 'content',
'content': chunk,
}) + "\n"
except Exception as e:
yield json.dumps({
'type' : 'error',
'error': f'{e.__class__.__name__}: {e}'
})
raise e
return self.app.response_class(try_response(), mimetype='text/event-stream')
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