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Agents Name Service
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Agents Name Service

Introduction

This file can be run on any platform supporting Python, with the necessary install permissions. This example shows how to set up Agents Name Services using the uAgents and CosmPy Python libraries.

Supporting documentation

Agent 1

agent_1.py
from cosmpy.aerial.wallet import LocalWallet
 
from uagents.network import get_name_service_contract
from uagents.setup import fund_agent_if_low
from uagents import Agent, Context, Model
 
class Message(Model):
    message: str
 
bob = Agent(
    name="bob-0",
    seed="agent bob-0 secret phrase",
    port=8001,
    endpoint=["http://localhost:8001/submit"],
)
 
my_wallet = LocalWallet.from_unsafe_seed("registration test wallet")
name_service_contract = get_name_service_contract(test=True)
DOMAIN = "agent"
 
for wallet in [my_wallet, bob.wallet]:
    fund_agent_if_low(wallet.address())
 
@bob.on_event("startup")
async def register_agent_name(ctx: Context):
    await name_service_contract.register(
        bob.ledger, my_wallet, ctx.address, ctx.name, DOMAIN
    )
 
@bob.on_message(model=Message)
async def message_handler(ctx: Context, sender: str, msg: Message):
    ctx.logger.info(f"Received message from {sender}: {msg.message}")
 
if __name__ == "__main__":
    bob.run()

Agent 2

agent_2.py
from uagents.setup import fund_agent_if_low
from uagents import Agent, Context, Model
 
class Message(Model):
    message: str
 
alice = Agent(
    name="alice-0",
    seed="agent alice-0 secret phrase",
    port=8000,
    endpoint=["http://localhost:8000/submit"],
)
 
fund_agent_if_low(alice.wallet.address())
 
@alice.on_interval(period=5)
async def alice_interval_handler(ctx: Context):
    bob_name = "bob-0.agent"
    ctx.logger.info(f"Sending message to {bob_name}...")
    await ctx.send(bob_name, Message(message="Hello there bob."))
 
if __name__ == "__main__":
    alice.run()

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