Quixir/CommandHandling
Quixir/CommandHandling[edit]
Quixir/CommandHandling is a module in the Quixir library for handling commands in the Elixir programming language. This module provides a robust and flexible framework for handling commands and executing corresponding actions.
Overview[edit]
The Quixir/CommandHandling module allows developers to easily define and handle commands in their Elixir applications. It provides a clean and simple interface for registering commands and associating them with specific actions.
Features[edit]
The Quixir/CommandHandling module offers the following features:
- Command registration
- Command dispatching
- Command parsing and validation
- Command execution
- Error handling
Usage[edit]
To use the Quixir/CommandHandling module, you need to install the Quixir library and add it as a dependency to your Elixir project. Once installed, you can import the module and start registering commands.
Command Registration[edit]
To register a command, you can use the `register_command/2` function. This function takes two arguments: the command name and a callback function that will be executed when the command is invoked.
```elixir Quixir.CommandHandling.register_command("greet", &MyApp.Greeter.greet/1) ```
Command Dispatching[edit]
To dispatch a command, you can use the `dispatch_command/2` function. This function takes two arguments: the command name and the command arguments. The specified callback function associated with the command will be executed.
```elixir Quixir.CommandHandling.dispatch_command("greet", ["Alice"]) ```
Command Parsing and Validation[edit]
The Quixir/CommandHandling module supports command parsing and validation out-of-the-box. It provides functions such as `parse_command/1` and `validate_command/1` to help you parse and validate command arguments.
```elixir command = Quixir.CommandHandling.parse_command("greet Alice") Quixir.CommandHandling.validate_command(command) ```
Command Execution[edit]
Once a command is dispatched and validated, the associated callback function will be executed. This function should handle the logic and actions related to the command.
```elixir defmodule MyApp.Greeter do
def greet(args) do
[name] = args
IO.puts("Hello, #{name}!")
end
end ```
Error Handling[edit]
The Quixir/CommandHandling module provides error handling capabilities to handle various types of errors that may occur during command handling. This allows you to gracefully handle and report errors to users.