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@ -1,162 +1,206 @@
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import g4f
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import time
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import json
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import random
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import string
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import time
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# import requests
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from flask import Flask, request
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from flask_cors import CORS
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# from transformers import AutoTokenizer
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from g4f import ChatCompletion
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app = Flask(__name__)
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CORS(app)
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@app.route("/")
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def index():
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return "interference api, url: http://127.0.0.1:1337"
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@app.route("/chat/completions", methods=["POST"])
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def chat_completions():
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model = request.get_json().get("model", "gpt-3.5-turbo")
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stream = request.get_json().get("stream", False)
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messages = request.get_json().get("messages")
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response = ChatCompletion.create(model=model, stream=stream, messages=messages)
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completion_id = "".join(random.choices(string.ascii_letters + string.digits, k=28))
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completion_timestamp = int(time.time())
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if not stream:
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return {
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"id": f"chatcmpl-{completion_id}",
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"object": "chat.completion",
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"created": completion_timestamp,
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"model": model,
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"choices": [
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{
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"index": 0,
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"message": {
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"role": "assistant",
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"content": response,
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},
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"finish_reason": "stop",
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}
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],
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"usage": {
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"prompt_tokens": None,
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"completion_tokens": None,
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"total_tokens": None,
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},
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}
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def streaming():
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for chunk in response:
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completion_data = {
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"id": f"chatcmpl-{completion_id}",
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"object": "chat.completion.chunk",
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"created": completion_timestamp,
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"model": model,
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"choices": [
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import logging
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from typing import Union
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from loguru import logger
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from waitress import serve
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from ._logging import hook_logging
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from ._tokenizer import tokenize
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from flask_cors import CORS
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from werkzeug.serving import WSGIRequestHandler
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from werkzeug.exceptions import default_exceptions
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from werkzeug.middleware.proxy_fix import ProxyFix
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from flask import (
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Flask,
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jsonify,
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make_response,
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request,
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)
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class Api:
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__default_ip = '127.0.0.1'
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__default_port = 1337
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def __init__(self, engine: g4f, debug: bool = True, sentry: bool = False) -> None:
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self.engine = engine
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self.debug = debug
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self.sentry = sentry
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self.log_level = logging.DEBUG if debug else logging.WARN
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hook_logging(level=self.log_level, format='[%(asctime)s] %(levelname)s in %(module)s: %(message)s')
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self.logger = logging.getLogger('waitress')
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self.app = Flask(__name__)
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self.app.wsgi_app = ProxyFix(self.app.wsgi_app, x_port=1)
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self.app.after_request(self.__after_request)
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def run(self, bind_str, threads=8):
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host, port = self.__parse_bind(bind_str)
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CORS(self.app, resources={r'/v1/*': {'supports_credentials': True, 'expose_headers': [
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'Content-Type',
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'Authorization',
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'X-Requested-With',
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'Accept',
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'Origin',
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'Access-Control-Request-Method',
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'Access-Control-Request-Headers',
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'Content-Disposition'], 'max_age': 600}})
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self.app.route('/v1/models', methods=['GET'])(self.models)
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self.app.route('v1/models/<model_id>', methods=['GET'])(self.model_info)
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self.app.route('/v1/chat/completions', methods=['POST'])(self.chat_completions)
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self.app.route('/v1/completions', methods=['POST'])(self.completions)
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for ex in default_exceptions:
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self.app.register_error_handler(ex, self.__handle_error)
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if not self.debug:
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self.logger.warning('Serving on http://{}:{}'.format(host, port))
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WSGIRequestHandler.protocol_version = 'HTTP/1.1'
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serve(self.app, host=host, port=port, ident=None, threads=threads)
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def __handle_error(self, e: Exception):
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self.logger.error(e)
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return make_response(jsonify({
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'code': e.code,
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'message': str(e.original_exception if self.debug and hasattr(e, 'original_exception') else e.name)}), 500)
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@staticmethod
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def __after_request(resp):
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resp.headers['X-Server'] = 'g4f/%s' % g4f.version
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return resp
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def __parse_bind(self, bind_str):
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sections = bind_str.split(':', 2)
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if len(sections) < 2:
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try:
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port = int(sections[0])
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return self.__default_ip, port
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except ValueError:
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return sections[0], self.__default_port
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return sections[0], int(sections[1])
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async def home(self):
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return 'Hello world | https://127.0.0.1:1337/v1'
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async def chat_completions(self):
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model = request.json.get('model', 'gpt-3.5-turbo')
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stream = request.json.get('stream', False)
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messages = request.json.get('messages')
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logger.info(f'model: {model}, stream: {stream}, request: {messages[-1]["content"]}')
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response = self.engine.ChatCompletion.create(model=model,
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stream=stream, messages=messages)
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completion_id = ''.join(random.choices(string.ascii_letters + string.digits, k=28))
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completion_timestamp = int(time.time())
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if not stream:
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prompt_tokens, _ = tokenize(''.join([message['content'] for message in messages]))
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completion_tokens, _ = tokenize(response)
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return {
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'id': f'chatcmpl-{completion_id}',
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'object': 'chat.completion',
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'created': completion_timestamp,
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'model': model,
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'choices': [
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{
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"index": 0,
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"delta": {
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"content": chunk,
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'index': 0,
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'message': {
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'role': 'assistant',
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'content': response,
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},
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"finish_reason": None,
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'finish_reason': 'stop',
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}
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],
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'usage': {
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'prompt_tokens': prompt_tokens,
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'completion_tokens': completion_tokens,
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'total_tokens': prompt_tokens + completion_tokens,
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},
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}
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content = json.dumps(completion_data, separators=(",", ":"))
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yield f"data: {content}\n\n"
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time.sleep(0.1)
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def streaming():
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try:
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for chunk in response:
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completion_data = {
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'id': f'chatcmpl-{completion_id}',
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'object': 'chat.completion.chunk',
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'created': completion_timestamp,
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'model': model,
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'choices': [
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{
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'index': 0,
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'delta': {
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'content': chunk,
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},
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'finish_reason': None,
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}
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],
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}
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end_completion_data = {
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"id": f"chatcmpl-{completion_id}",
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"object": "chat.completion.chunk",
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"created": completion_timestamp,
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"model": model,
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"choices": [
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{
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"index": 0,
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"delta": {},
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"finish_reason": "stop",
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content = json.dumps(completion_data, separators=(',', ':'))
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yield f'data: {content}\n\n'
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time.sleep(0.03)
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end_completion_data = {
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'id': f'chatcmpl-{completion_id}',
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'object': 'chat.completion.chunk',
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'created': completion_timestamp,
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'model': model,
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'choices': [
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{
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'index': 0,
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'delta': {},
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'finish_reason': 'stop',
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}
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],
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}
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],
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}
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content = json.dumps(end_completion_data, separators=(",", ":"))
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yield f"data: {content}\n\n"
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return app.response_class(streaming(), mimetype="text/event-stream")
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# Get the embedding from huggingface
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# def get_embedding(input_text, token):
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# huggingface_token = token
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# embedding_model = "sentence-transformers/all-mpnet-base-v2"
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# max_token_length = 500
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# # Load the tokenizer for the 'all-mpnet-base-v2' model
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# tokenizer = AutoTokenizer.from_pretrained(embedding_model)
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# # Tokenize the text and split the tokens into chunks of 500 tokens each
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# tokens = tokenizer.tokenize(input_text)
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# token_chunks = [
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# tokens[i : i + max_token_length]
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# for i in range(0, len(tokens), max_token_length)
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# ]
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# # Initialize an empty list
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# embeddings = []
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# # Create embeddings for each chunk
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# for chunk in token_chunks:
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# # Convert the chunk tokens back to text
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# chunk_text = tokenizer.convert_tokens_to_string(chunk)
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# # Use the Hugging Face API to get embeddings for the chunk
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# api_url = f"https://api-inference.huggingface.co/pipeline/feature-extraction/{embedding_model}"
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# headers = {"Authorization": f"Bearer {huggingface_token}"}
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# chunk_text = chunk_text.replace("\n", " ")
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# # Make a POST request to get the chunk's embedding
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# response = requests.post(
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# api_url,
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# headers=headers,
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# json={"inputs": chunk_text, "options": {"wait_for_model": True}},
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# )
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# # Parse the response and extract the embedding
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# chunk_embedding = response.json()
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# # Append the embedding to the list
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# embeddings.append(chunk_embedding)
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# # averaging all the embeddings
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# # this isn't very effective
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# # someone a better idea?
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# num_embeddings = len(embeddings)
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# average_embedding = [sum(x) / num_embeddings for x in zip(*embeddings)]
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# embedding = average_embedding
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# return embedding
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# @app.route("/embeddings", methods=["POST"])
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# def embeddings():
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# input_text_list = request.get_json().get("input")
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# input_text = " ".join(map(str, input_text_list))
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# token = request.headers.get("Authorization").replace("Bearer ", "")
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# embedding = get_embedding(input_text, token)
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# return {
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# "data": [{"embedding": embedding, "index": 0, "object": "embedding"}],
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# "model": "text-embedding-ada-002",
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# "object": "list",
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# "usage": {"prompt_tokens": None, "total_tokens": None},
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# }
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def run_api():
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app.run(host="0.0.0.0", port=1337)
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content = json.dumps(end_completion_data, separators=(',', ':'))
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yield f'data: {content}\n\n'
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logger.success(f'model: {model}, stream: {stream}')
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except GeneratorExit:
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pass
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return self.app.response_class(streaming(), mimetype='text/event-stream')
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async def completions(self):
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return 'not working yet', 500
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async def model_info(self, model_name):
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model_info = (g4f.ModelUtils.convert[model_name])
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return jsonify({
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'id' : model_name,
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'object' : 'model',
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'created' : 0,
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'owned_by' : model_info.base_provider
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})
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async def models(self):
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model_list = [{
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'id' : model,
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'object' : 'model',
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'created' : 0,
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'owned_by' : 'g4f'} for model in g4f.Model.__all__()]
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return jsonify({
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'object': 'list',
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'data': model_list})
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