Open Dialogue Chit-Chat

Overview

This example demonstrates how to set up and execute a simple agent-based dialogue using the ChitChat Dialogue system. Agent 2 will initiate a conversation with Agent 1, which will respond and continue the interaction. This interaction showcases basic dialogue initiation, message exchange, and dialogue conclusion. Each step and state transition within the ChitChat Dialogue is visible and interactive

Guide

How to use Dialogues

Supporting documentation

Step 1: Define the Dialogue Structure

This script sets up the ChitChatDialogue class, This system includes nodes representing different states of the dialogue and edges defining possible transitions between these states.

Open a terminal and create a directory using mkdir Dialogues and navigate into it with cd Dialogues.
Create a python file chitchat.py in Dialogues directory.

windows
echo. > chitchat.py

Import required libraries.


# Import required libraries
 
from typing import Type
from uagents import Model
from uagents.experimental.dialogues import Dialogue, Edge, Node

Define nodes (state) of dialogues like default, initiate, chitchat and conclude state.


# Define node of dialogue
default_state = Node(
    name="Default State",
    description=(
        "This is the default state of the dialogue. Every session starts in "
        "this state and is automatically updated once the dialogue starts."
    )
)
init_state = Node(
    name="Initiated",
    description=(
        "This is the initial state of the dialogue that is only available at "
        "the receiving agent."
    ),
)
chatting_state = Node(
    name="Chit Chatting",
    description="This is the state in which messages are exchanged.",
)
end_state = Node(
    name="Concluded",
    description="This is the state after the dialogue has been concluded.",
)

Define edges (transition) of dialogues like initiate session, reject session, start dialogue, continue dialogue and end session.


# Edge definition for the dialogue transitions
init_session = Edge(
    name="initiate_session",
    description="Every dialogue starts with this transition.",
    parent=None,
    child=init_state,
)
reject_session = Edge(
    name="reject_session",
    description=("This is the transition for when the dialogue is rejected"),
    parent=init_state,
    child=end_state,
)
start_dialogue = Edge(
    name="start_dialogue",
    description="This is the transition from initiated to chit chatting.",
    parent=init_state,
    child=chatting_state,
)
cont_dialogue = Edge(
    name="continue_dialogue",
    description=(
        "This is the transition from one dialogue message to the next, "
        "i.e. for when the dialogue continues."
    ),
    parent=chatting_state,
    child=chatting_state,
)
end_session = Edge(
    name="end_session",
    description="This is the transition for when the session is ended.",
    parent=chatting_state,
    child=end_state,
)

Define ChitChatDialogue class and include nodes and edges into it. These acts as rule for chit chat dialogues.


class ChitChatDialogue(Dialogue):
    """
    This is the specific definition of the rules for the chit-chat dialogue
    The rules will be predefined and the actual messages will be passed into it
    """
 
    def __init__(
        self,
        version: str | None = None,
        agent_address: str | None = None,
    ) -> None:
        super().__init__(
            name="ChitChatDialogue",
            version=version,
            agent_address=agent_address,
            nodes=[
                default_state,
                init_state,
                chatting_state,
                end_state,
            ],
            edges=[
                init_session,
                reject_session,
                start_dialogue,
                cont_dialogue,
                end_session,
            ],
        )
 
    def on_initiate_session(self, model: Type[Model]):
        """
        This handler is triggered when the initial message of the
        dialogue is received. From here you can either accept or reject.
        Logic that is needed to complete any kind of handshake or considers
        global agent state should go here.
        """
        return super()._on_state_transition(init_session.name, model)
 
    def on_reject_session(self, model: Type[Model]):
        """
        This handler is triggered when a reject message is returned on
        the initial message.
        Implement this if you need to clean up session data.
        """
        return super()._on_state_transition(reject_session.name, model)
 
    def on_start_dialogue(self, model: Type[Model]):
        """
        This handler is triggered when an accept message is returned on
        the initial message.
        Include logic to complete any handshake on the sender side and
        prepare the actual message exchange.
        """
        return super()._on_state_transition(start_dialogue.name, model)
 
    def on_continue_dialogue(self, model: Type[Model]):
        """
        This handler is triggered for every incoming "chitchat" message
        once the session has been accepted.
        Any additional stateful information within a dialogue needs to be
        persisted explicitly to access it at a later point in the dialogue.
        """
        return super()._on_state_transition(cont_dialogue.name, model)
 
    def on_end_session(self, model: Type[Model]):
        """
        This handler is triggered once the other party has ended the dialogue.
        Any final conclusion or cleanup goes here.
        """
        return super()._on_state_transition(end_session.name, model)

The contents of this script are to be shared between the agents that want to use this dialogue. This defines the structure of the specific dialogue and the messages that are expected to be exchanged.

Step 2: Setting up Agents

Setup agent1 which receives initiate session from agent2 and accepts the state.
agent2 sends continues chit chat dialogue message to agent 1 and continues the chat.
if any of the agent sends exit message the dialogue is concluded.
Run cd .. to go out of Dialogues directory and create agent1.py Python script

windows
echo. > agent1.py

agent1.py
# Import required libraries
import json
 
from uagents import Agent, Context, Model
from uagents.setup import fund_agent_if_low
from dialogues.chitchat import ChitChatDialogue
 
CHAT_AGENT_ADDRESS = "<your_agent_2_address>"
 
agent = Agent(
    name="chit_agent",
    seed="<random_string_of_choice>",
    port=8001,
    endpoint="http://127.0.0.1:8001/submit",
)
 
fund_agent_if_low(agent.wallet.address())
 
# Define dialogue messages; each transition needs a separate message
class InitiateChitChatDialogue(Model):
    pass
 
class AcceptChitChatDialogue(Model):
    pass
 
class ChitChatDialogueMessage(Model):
    text: str
 
class ConcludeChitChatDialogue(Model):
    pass
 
class RejectChitChatDialogue(Model):
    pass
 
# Instantiate the dialogues
chitchat_dialogue = ChitChatDialogue(
    version="0.1",
    agent_address=agent.address,
)
 
# Get an overview of the dialogue structure
print("Dialogue overview:")
print(json.dumps(chitchat_dialogue.get_overview(), indent=4))
print("---")
 
@chitchat_dialogue.on_initiate_session(InitiateChitChatDialogue)
async def start_chitchat(
    ctx: Context,
    sender: str,
    _msg: InitiateChitChatDialogue,
):
    ctx.logger.info(f"Received init message from {sender}")
    # Do something when the dialogue is initiated
    await ctx.send(sender, AcceptChitChatDialogue())
 
@chitchat_dialogue.on_start_dialogue(AcceptChitChatDialogue)
async def accept_chitchat(
    ctx: Context,
    sender: str,
    _msg: AcceptChitChatDialogue,
):
    ctx.logger.info(
        f"session with {sender} was accepted. I'll say 'Hello!' to start the ChitChat"
    )
    # Do something after the dialogue is started; e.g. send a message
    await ctx.send(sender, ChitChatDialogueMessage(text="Hello!"))
 
@chitchat_dialogue.on_reject_session(RejectChitChatDialogue)
async def reject_chitchat(
    ctx: Context,
    sender: str,
    _msg: RejectChitChatDialogue,
):
    # Do something when the dialogue is rejected and nothing has been sent yet
    ctx.logger.info(f"Received reject message from: {sender}")
 
@chitchat_dialogue.on_continue_dialogue(ChitChatDialogueMessage)
async def continue_chitchat(
    ctx: Context,
    sender: str,
    msg: ChitChatDialogueMessage,
):
    # Do something when the dialogue continues
    ctx.logger.info(f"Received message: {msg.text}")
    try:
        my_msg = input("Please enter your message:\n> ")
        if my_msg != "exit":
            await ctx.send(sender, ChitChatDialogueMessage(text=my_msg))
        else:
            await ctx.send(sender, ConcludeChitChatDialogue())
            ctx.logger.info(
                f"Received conclude message from: {sender}; accessing history:"
            )
            ctx.logger.info(chitchat_dialogue.get_conversation(ctx.session))
    except EOFError:
        await ctx.send(sender, ConcludeChitChatDialogue())
 
@chitchat_dialogue.on_end_session(ConcludeChitChatDialogue)
async def conclude_chitchat(
    ctx: Context,
    sender: str,
    _msg: ConcludeChitChatDialogue,
):
    # Do something when the dialogue is concluded after messages have been exchanged
    ctx.logger.info(f"Received conclude message from: {sender}; accessing history:")
    ctx.logger.info(chitchat_dialogue.get_conversation(ctx.session))
 
agent.include(chitchat_dialogue)
 
if __name__ == "__main__":
    print(f"Agent address: {agent.address}")
    agent.run()

Create Python agent2.py script:

windows
echo. > agent2.py

agent2.py
"""Chit chat dialogue example"""
 
from asyncio import sleep
 
from uagents import Agent, Context, Model
from uagents.setup import fund_agent_if_low
from dialogues.chitchat import ChitChatDialogue
 
CHIT_AGENT_ADDRESS = "<your_agent_1_address>"
 
agent = Agent(
    name="chat_agent",
    seed="<random_string_of_choice>",
    port=8002,
    endpoint="http://127.0.0.1:8002/submit",
)
 
fund_agent_if_low(agent.wallet.address())
 
# Define dialogue messages; each transition needs a separate message
class InitiateChitChatDialogue(Model):
    pass
 
class AcceptChitChatDialogue(Model):
    pass
 
class ChitChatDialogueMessage(Model):
    text: str
 
class ConcludeChitChatDialogue(Model):
    pass
 
class RejectChitChatDialogue(Model):
    pass
 
# Instantiate the dialogues
chitchat_dialogue = ChitChatDialogue(
    version="0.1",
    agent_address=agent.address,
)
 
@chitchat_dialogue.on_initiate_session(InitiateChitChatDialogue)
async def start_chitchat(
    ctx: Context,
    sender: str,
    _msg: InitiateChitChatDialogue,
):
    ctx.logger.info(f"Received init message from {sender}")
    # Do something when the dialogue is initiated
    await ctx.send(sender, AcceptChitChatDialogue())
 
@chitchat_dialogue.on_start_dialogue(AcceptChitChatDialogue)
async def accept_chitchat(
    ctx: Context,
    sender: str,
    _msg: AcceptChitChatDialogue,
):
    ctx.logger.info(
        f"session with {sender} was accepted. I'll say 'Hello!' to start the ChitChat"
    )
    # Do something after the dialogue is started; e.g. send a message
    await ctx.send(sender, ChitChatDialogueMessage(text="Hello!"))
 
@chitchat_dialogue.on_reject_session(RejectChitChatDialogue)
async def reject_chitchat(
    ctx: Context,
    sender: str,
    _msg: RejectChitChatDialogue,
):
    # Do something when the dialogue is rejected and nothing has been sent yet
    ctx.logger.info(f"Received reject message from: {sender}")
 
@chitchat_dialogue.on_continue_dialogue(ChitChatDialogueMessage)
async def continue_chitchat(
    ctx: Context,
    sender: str,
    msg: ChitChatDialogueMessage,
):
    ctx.logger.info(f"Received message: {msg.text}")
    try:
        my_msg = input("Please enter your message:\n> ")
        if my_msg != "exit":
            await ctx.send(sender, ChitChatDialogueMessage(text=my_msg))
        else:
            await ctx.send(sender, ConcludeChitChatDialogue())
            ctx.logger.info(
                f"Received conclude message from: {sender}; accessing history:"
            )
            ctx.logger.info(chitchat_dialogue.get_conversation(ctx.session))
    except EOFError:
        await ctx.send(sender, ConcludeChitChatDialogue())
 
@chitchat_dialogue.on_end_session(ConcludeChitChatDialogue)
async def conclude_chitchat(
    ctx: Context,
    sender: str,
    _msg: ConcludeChitChatDialogue,
):
    # Do something when the dialogue is concluded after messages have been exchanged
    ctx.logger.info(f"Received conclude message from: {sender}; accessing history:")
    ctx.logger.info(chitchat_dialogue.get_conversation(ctx.session))
 
agent.include(chitchat_dialogue)
 
# Initiate dialogue by sending message to agent1
@agent.on_event("startup")
async def start_cycle(ctx: Context):
    await sleep(5)
    await chitchat_dialogue.start_dialogue(
        ctx, CHIT_AGENT_ADDRESS, InitiateChitChatDialogue()
    )
 
if __name__ == "__main__":
    print(f"Agent address: {agent.address}")
    agent.run()

ℹ️

Remember to update the agent's address to communicate to each other and seed phrase of own choice.

Step 3: run the dialogue

Start agent 1:
- Run agent1 using python agent1.py
- Agent 1 is set to accept the dialogue initiation and respond with a greeting.
Start agent 2:
- Run agent2.py using python agent2.py.
- This agent will automatically attempt to initiate a dialogue by sending an InitiateChitChatDialogue message to agent1.

Expected output

agent1 logger/terminal output:


abc@xyz-MacBook-Pro dialogues % python3 agent1.py
Dialogue overview:
{
    "nodes": [
        {
            "name": "Default State",
            "description": "This is the default state of the dialogue. Every session starts in this state and is automatically updated once the dialogue starts.",
            "initial": true,
            "final": false
        },
        {
            "name": "Initiated",
            "description": "This is the initial state of the dialogue that is only available at the receiving agent.",
            "initial": false,
            "final": false
        },
        {
            "name": "Chit Chatting",
            "description": "This is the state in which messages are exchanged.",
            "initial": false,
            "final": false
        },
        {
            "name": "Concluded",
            "description": "This is the state after the dialogue has been concluded.",
            "initial": false,
            "final": true
        }
    ],
    "edges": [
        {
            "name": "Initiate session",
            "description": "Every dialogue starts with this transition.",
            "parent": "Default State",
            "child": "Initiated",
            "model": null,
            "starter": true,
            "ender": false
        },
        {
            "name": "Reject session",
            "description": "This is the transition for when the dialogue is rejected",
            "parent": "Initiated",
            "child": "Concluded",
            "model": null,
            "starter": false,
            "ender": true
        },
        {
            "name": "Start dialogue",
            "description": "This is the transition from initiated to chit chatting.",
            "parent": "Initiated",
            "child": "Chit Chatting",
            "model": null,
            "starter": false,
            "ender": false
        },
        {
            "name": "Continue dialogue",
            "description": "This is the transition from one dialogue message to the next, i.e. for when the dialogue continues.",
            "parent": "Chit Chatting",
            "child": "Chit Chatting",
            "model": null,
            "starter": false,
            "ender": false
        },
        {
            "name": "End session",
            "description": "This is the transition for when the session is ended.",
            "parent": "Chit Chatting",
            "child": "Concluded",
            "model": null,
            "starter": false,
            "ender": true
        }
    ]
}
---
Agent address: agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j
INFO:     [chit_agent]: Almanac registration is up to date!
INFO:     [chit_agent]: Starting server on http://0.0.0.0:8001 (Press CTRL+C to quit)
INFO:     [chit_agent]: Received init message from agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu
INFO:     [chit_agent]: Received message: Hello!
Please enter your message:
> Hello Chat agent, It's nice meeting you sir.
INFO:     [chit_agent]: Received message: Do you know we are setting up example of how to use dialogues with agents.
Please enter your message:
> Ohh Really...!! That's amazing.
INFO:     [chit_agent]: Received message: We have done it, lets exit this conversation.
Please enter your message:
> exit

agent2 logger/terminal output:


abc@xyz-MacBook-Pro dialogues % python3 agent2.py
Agent address: agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu
INFO:     [chat_agent]: Almanac registration is up to date!
INFO:     [chat_agent]: Starting server on http://0.0.0.0:8002 (Press CTRL+C to quit)
INFO:     [chat_agent]: session with agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j was accepted. I'll say 'Hello!' to start the ChitChat
INFO:     [chat_agent]: Received message: Hello Chat agent, It's nice meeting you sir.
Please enter your message:
> Do you know we are setting up example of how to use dialogues with agents.
INFO:     [chat_agent]: Received message: Ohh Really...!! That's amazing.
Please enter your message:
> We have done it, lets exit this conversation.
INFO:     [chat_agent]: Received conclude message from: agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j; accessing history:
INFO:     [chat_agent]: [{'message_type': 'InitiateChitChatDialogue', 'sender': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'receiver': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'message_content': '{}', 'timestamp': 1713352925.25236, 'timeout': 60}, {'message_type': 'AcceptChitChatDialogue', 'sender': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'receiver': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'message_content': '{}', 'timestamp': 1713352925.363479, 'timeout': 60}, {'message_type': 'ChitChatDialogueMessage', 'sender': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'receiver': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'message_content': '{"text": "Hello!"}', 'timestamp': 1713352925.364252, 'timeout': 60}, {'message_type': 'ChitChatDialogueMessage', 'sender': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'receiver': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'message_content': '{"text": "Hello Chat agent, It\'s nice meeting you sir."}', 'timestamp': 1713352940.489155, 'timeout': 60}, {'message_type': 'ChitChatDialogueMessage', 'sender': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'receiver': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'message_content': '{"text": "Do you now we are setting up example of how to use dialogues with agents."}', 'timestamp': 1713352978.223705, 'timeout': 60}, {'message_type': 'ChitChatDialogueMessage', 'sender': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'receiver': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'message_content': '{"text": "Ohh Really...!! That's amazing."}', 'timestamp': 1713353000.452756, 'timeout': 60}, {'message_type': 'ChitChatDialogueMessage', 'sender': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'receiver': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'message_content': '{"text": "We have done it, lets exit this conversation."}', 'timestamp': 1713353026.271922, 'timeout': 60}, {'message_type': 'ConcludeChitChatDialogue', 'sender': 'agent1qvhlqy2a4lk9gge8ug7l65a6k07wc92hh2d5jhwtat0zakrtg08njmfn00j', 'receiver': 'agent1qgp7urkvx24a2gs8e7496fajzy78h4887vz7va4h7klzf7azzhthsz7zymu', 'message_content': '{}', 'timestamp': 1713353031.887555, 'timeout': 60}]

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