タグアーカイブ api

string messages
---
string response

#!/usr/bin/env python3

import rospy
import openai
import json

from openai_ros.srv import ChatCompletion, ChatCompletionResponse


def handle_chat_request(req):

    openai.api_key = rospy.get_param('~key')
    model = rospy.get_param('~model')
    
    res = ChatCompletionResponse()
    messages = json.loads(req.messages)
    
    response = openai.ChatCompletion.create(
        model=model,
        messages=messages
    )
    
    return json.dumps(response)


def chat_service():
    rospy.init_node('chat_service')
    rospy.Service('chat_service', ChatCompletion, handle_chat_request)
    rospy.spin()


if __name__ == "__main__":
    chat_service()

#!/usr/bin/env python3

import sys, json
import rospy

from openai_ros.srv import ChatCompletion, ChatCompletionResponse


def chat_client(prompt="You are a helpful assistant."):
    
    messages = []
    messages.append({"role": "system", "content": str(prompt)})
    
    rospy.wait_for_service('chat_service')
    
    try:
        chat_service_client = rospy.ServiceProxy('chat_service', ChatCompletion)
    except rospy.ServiceException as e:
        print ("Service call failed: %s" % e)

    while not rospy.is_shutdown():
        
        # Get input from the user
        user_input = input("You: ")
        if user_input == "quit":
            exit()
        
        # Add user's input to the history
        messages.append({"role": "user", "content": user_input})
        
        msg_string = json.dumps(messages)
        
        # Call the service
        try:
            res_msg = chat_service_client(msg_string)
        except rospy.ServiceException as e:
            print ("Service call failed: %s" % e)
        
        response = json.loads(res_msg.response)
        
        content = response["choices"][0]["message"]["content"]
        role = response["choices"][0]["message"]["role"]
        token = response["usage"]["total_tokens"]
        
        print("\n%s(token:%d): %s\n" % (role, token, content))
        
        # Add GPT's response to the history
        messages.append({"role": str(role), "content": str(content)})


if __name__ == "__main__":
    if len(sys.argv) == 2:
        prompt = str(sys.argv[1])
    else:
        prompt = "You are a helpful assistant."
    
    print("Type \'quit\' to quit.\n")
    print("For \'system\': %s\n" % (prompt))
    rospy.init_node('chat_client')
    
    chat_client(prompt=prompt)

<launch>
  
  <arg name="key" default="$(env OPENAI_API_KEY)" />
  <arg name="model" default="gpt-3.5-turbo" />

  <node pkg="openai_ros" type="openai_chat_server.py" name="openai_chat" output="screen">
    <param name="key" value="$(arg key)" />
    <param name="model" value="$(arg model)" />
  </node>
  
</launch>

add_service_files(
  FILES
  Completion.srv
  ChatCompletion.srv
)

generate_messages(

robotuser@robotuser-PC:~/openai_ws$ source ~/openai_ws/devel/setup.bash
robotuser@robotuser-PC:~/openai_ws$ export OPENAI_API_KEY="sk-..."
robotuser@robotuser-PC:~/openai_ws$ roslaunch openai_ros openai_chat.launch

robotuser@robotuser-PC:~/openai_ws$ source ~/openai_ws/devel/setup.bash
robotuser@robotuser-PC:~/openai_ws$ rosrun openai_ros openai_chat_client.py
Type 'quit' to quit.

For 'system': You are a helpful assistant.

You: hello

assistant(token:27): Hello! How can I assist you today?

You: ハロー

assistant(token:56): こんにちは！どのようにお手伝いできますか？

You: ボン・ニュイ

assistant(token:115): ボン・ニュイ！夜にちょっと早い挨拶ですね．何かお手伝いできることはありますか？

You: こんばんは をフランス語で言うと？

assistant(token:163): 「こんばんは」をフランス語で言うと「Bonsoir」となります．

You: bon nuit は日本語では？

assistant(token:224): 「bon nuit」はフランス語で「良い夜」を意味しますが，日本語では「おやすみなさい」と訳されます．

You: 間違えていました．ボンソワール

assistant(token:338): 間違いありません．「ボンソワール」はフランス語で「こんばんは」という意味です．おやすみなさいの言い方は「ボンヌィ」となります．ごめんなさい，混乱を招いてしまいました．どうかお許しください．

You: quit
robotuser@robotuser-PC:~/openai_ws$