Packages
commanded
0.14.0
1.4.11
1.4.10
1.4.9
1.4.8
1.4.7
1.4.6
1.4.3
1.4.2
1.4.1
1.4.0
1.4.0-rc.0
1.3.1
1.3.0
1.2.0
1.1.1
1.1.0
1.0.1
1.0.0
1.0.0-rc.1
1.0.0-rc.0
0.19.1
0.19.0
0.18.1
0.18.0
0.17.5
0.17.4
0.17.3
0.17.2
0.17.1
0.17.0
0.16.0
0.16.0-rc.1
0.16.0-rc.0
0.15.1
0.15.0
0.14.0
0.14.0-rc.0
0.13.0
0.12.0
0.11.0
0.10.0
0.9.0
0.8.5
0.8.4
0.8.3
0.8.1
0.8.0
0.7.1
0.6.2
0.6.1
0.6.0
0.4.0
0.3.1
0.3.0
0.2.1
0.2.0
0.1.0
Use Commanded to build your own Elixir applications following the CQRS/ES pattern.
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Files
test/example_domain/bank_account/account_balance_handler.ex
defmodule Commanded.ExampleDomain.AccountBalanceHandler do
alias Commanded.ExampleDomain.BankAccount.Events.{BankAccountOpened,MoneyDeposited}
@behaviour Commanded.Event.Handler
def start_link do
Agent.start_link(fn -> 0 end, name: __MODULE__)
end
def handle(%BankAccountOpened{initial_balance: initial_balance}, _metadata) do
Agent.update(__MODULE__, fn _ -> initial_balance end)
end
def handle(%MoneyDeposited{balance: balance}, _metadata) do
Agent.update(__MODULE__, fn _ -> balance end)
end
# ignore any other events
def handle(_event, _metadata), do: :ok
def current_balance do
Agent.get(__MODULE__, fn balance -> balance end)
end
end