How to update application in Beaker program

General
1

How can I update application written in Beaker? For example here is an official example:

import pyteal as pt

from beaker import (
Application,
client,
localnet,
)

hello_app = Application(“HelloBeaker”)

@hello_app.external
def hello(name: pt.abi.String, *, output: pt.abi.String) → pt.Expr:
# Set output to the result of Hello, +name
return output.set(pt.Concat(pt.Bytes("Hello, "), name.get()))

def demo() → None:
# Create an Application client
app_client = client.ApplicationClient(
# Get localnet algod client
client=localnet.get_algod_client(),
# Pass instance of app to client
app=hello_app,
# Get acct from localnet and pass the signer
signer=localnet.get_accounts().pop().signer,
)

# Deploy the app on-chain
app_id, app_addr, txid = app_client.create()
print(
    f"""Deployed app in txid {txid}
    App ID: {app_id} 
    Address: {app_addr} 
"""
)

# Call the `hello` method
result = app_client.call(hello, name="Beaker")
print(result.return_value)  # "Hello, Beaker"

if name == “main”:
demo()

I change the “hello” function last line to "return output.set(pt.Concat(pt.Bytes("Hello world, “), name.get()))”, and I failed to update with UpdateApplicationTxn transaction or beaker ApplicationClient update function. So what should I do?

2

The right place to get an answer is discord.

1 Like