logo
Ernie
repo-copy-icon

copied

You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Readme
Files and versions

102 lines
4.0 KiB

# Copyright 2021 Zilliz. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is a legacy code, for the new version, please use ../ernie_chat.py
import os
import requests
import json
from typing import List
from towhee.operator.base import PyOperator
class ErnieChat(PyOperator):
'''Wrapper of OpenAI Chat API'''
def __init__(self,
api_key: str = None,
secret_key: str = None,
**kwargs
):
self.api_key = api_key or os.getenv('ERNIE_API_KEY')
self.secret_key = secret_key or os.getenv('ERNIE_SECRET_KEY')
self.kwargs = kwargs
try:
self.access_token = self.get_access_token(api_key=self.api_key, secret_key=self.secret_key)
except Exception as e:
raise RuntimeError(f'Failed to get access token: {e}')
self.url = 'https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/completions?access_token=' \
+ self.access_token
def __call__(self, messages: List[dict]):
messages = self.parse_inputs(messages)
self.kwargs['messages'] = messages
payload = json.dumps(self.kwargs)
headers = {
'Content-Type': 'application/json'
}
response = requests.request('POST', self.url, headers=headers, data=payload)
# if self.kwargs.get('stream', False):
# return self.stream_output(response)
answer = response.json()['result']
return answer
def parse_inputs(self, messages: List[dict]):
assert isinstance(messages, list), \
'Inputs must be a list of dictionaries with keys from ["question", "answer"] or ["role", "content"].'
new_messages = []
for m in messages:
if ('role' and 'content' in m) and (m['role'] in ['assistant', 'user']):
new_messages.append(m)
else:
for k, v in m.items():
if ('role' and 'content' in m) and (m['role'] in ['system', 'assistant', 'user']):
if m['role'] == 'system':
new_messages.append({'role': 'user', 'content': m['content']})
new_messages.append({'role': 'assistant', 'content': 'OK.'})
else:
new_messages.append(m)
else:
for k, v in m.items():
if k == 'question':
new_ms = [{'role': 'user', 'content': v}]
elif k == 'answer':
new_ms = [{'role': 'assistant', 'content': v}]
elif k == 'system':
new_ms = [{'role': 'user', 'content': v}, {'role': 'assistant', 'content': 'OK.'}]
else:
raise KeyError(
'Invalid message key: only accept key value from ["question", "answer"].')
new_messages += new_ms
return new_messages
def stream_output(self, response):
# todo
pass
@staticmethod
def get_access_token(api_key, secret_key):
url = 'https://aip.baidubce.com/oauth/2.0/token'
params = {
'grant_type': 'client_credentials',
'client_id': api_key,
'client_secret': secret_key
}
return str(requests.post(url, params=params).json().get('access_token'))