Packages

ash

1.53.0
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2.0.0-rc.15 2.0.0-rc.14 2.0.0-rc.13 2.0.0-rc.12 2.0.0-rc.11 2.0.0-rc.10 2.0.0-rc.9 2.0.0-rc.8 2.0.0-rc.7 2.0.0-rc.6 2.0.0-rc.5 2.0.0-rc.4 2.0.0-rc.3 2.0.0-rc.2 2.0.0-rc.1 2.0.0-rc.0 2.0.0-pre.8 2.0.0-pre.7 2.0.0-pre.6 2.0.0-pre.5 2.0.0-pre.4 2.0.0-pre.3 2.0.0-pre.2 2.0.0-pre.1 2.0.0-pre.0 1.53.3 1.53.2 1.53.0 1.52.0-rc.22 1.52.0-rc.21 1.52.0-rc.20 1.52.0-rc.19 1.52.0-rc.18 1.52.0-rc.17 1.52.0-rc.16 1.52.0-rc.15 1.52.0-rc.14 1.52.0-rc.13 1.52.0-rc.12 1.52.0-rc.11 1.52.0-rc.10 1.52.0-rc.9 1.52.0-rc.8 1.52.0-rc.7 1.52.0-rc.6 1.52.0-rc.5 1.52.0-rc.4 1.52.0-rc.3 1.52.0-rc.2 1.52.0-rc.1 1.52.0-rc.0 1.51.2 1.51.1 retired 1.51.0 1.50.21 1.50.20 1.50.19 1.50.18 1.50.17 1.50.16 1.50.15 1.50.14 1.50.13 1.50.12 1.50.11 1.50.10 1.50.9 1.50.8 1.50.7 1.50.6 1.50.5 1.50.4 1.50.3 1.50.2 1.50.1 1.50.0 1.49.0 1.48.0-rc.30 1.48.0-rc.29 1.48.0-rc.28 1.48.0-rc.27 1.48.0-rc.26 1.48.0-rc.25 1.48.0-rc.24 1.48.0-rc.23 1.48.0-rc.22 1.48.0-rc.21 1.48.0-rc.20 1.48.0-rc.19 1.48.0-rc.18 1.48.0-rc.17 1.48.0-rc.16 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A declarative, extensible framework for building Elixir applications.

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# Quick Start
## NOTICE
This guide is old, and will be replaced soon. Once the generators are done. At that point, the quick start will look something like
- `mix new app_name` or `mix phx.new app_name`
- Add the ash dependency `{{mix_dep:ash}}`
- Run `mix ash.init`
- Generate an api `mix ash.gen.api ApiName`
- Generate a resource `mix ash.gen.resource ApiName ResourceName`
## Start Here
The first step is to decide if you're building a phoenix application or not. Phoenix is an extremely high quality web framework, and is the suggested pairing with Ash if you expect to be building a web front end, or an API. For this guide, we assume that elixir has already been installed. We will be using a "helpdesk" example throughout the documentation, so if you want to play along with your own application, you'll need to replace various names.
## Installing With Phoenix
Install the Phoenix installation archive and then create a new Phoenix application. Be sure to look over the options available with `mix help phx.new`, and visit the phoenix [Phoenix Documentation](https://www.phoenixframework.org/) for more information.
```bash
mix archive.install hex phx_new
mix phx.new cool_desk --live
```
## Installing Without Phoenix
Create a new application. Be sure to look aver the options available with `mix help new`.
```bash
mix new cool_desk
```
## Adding Ash
1. First off, add Ash as a dependency. In `mix.exs`, add
`{:ash, "~> 1.52.0-rc.0"}` to your dependencies.
2. Next, add an API. Create `lib/cool_desk/tickets/tickets.ex`, with the following contents:
```elixir
defmodule CoolDesk.Tickets do
use Ash.Api, otp_app: :cool_desk
end
```
3. Add a Registry. A registry is where you list the resources that a given Api has access to. Create `lib/cool_desk/tickets/registry.ex` with the following contents:
```elixir
defmodule CoolDesk.Tickets.Registry do
use Ash.Registry,
extensions: [Ash.Registry.ResourceValidations]
entries do
# We will list our resources here
end
end
```
4. Configure your application. Add the following to `config/config.exs`.
```elixir
# Configure the list of APIs in your application.
config :cool_desk, ash_apis: [
CoolDesk.Tickets
]
# Configure the registry to be used for your first API
# Storing this in configuration instead of the API improves
# compile times.
config :my_app, CoolDesk.Tickets,
resources: [
registry: CoolDesk.Tickets.Registry
]
```
5. Define your first resource. Place it at `lib/cool_desk/tickets/resources/ticket.ex`.
```elixir
defmodule CoolDesk.Tickets.Ticket do
use Ash.Resource, data_layer: Ash.DataLayer.Ets
# For now, we will use the `Ets` data layer, which is builtin and is very useful for quick prototyping.
# Data is stored in memory and will be lost when the app restarts.
attributes do
# We generally recommend using UUIDs, but you can
# also use `integer_primary_key :id`, or simply define
# your own with:
#
# `attribute :name, :type, primary_key?: true`
uuid_primary_key :id
# Add the attributes of your resource. For example,
# A "User" might have a `username` and an `email` attribute,
# or a "BlogPost" might have a `body` attribute
attribute :subject, :string
end
end
```
6. Add your resource to the registry that you created
```elixir
entries do
entry Cooldesk.Tickets.Ticket
end
```
7. Resources are static descriptions of behavior, and don't do anything on their own. To give them functionality, we must first add [actions](../concepts/actions.md), and then we will "invoke" those actions through an Api module. The simplest way to start is to use the [defaults](ash-hq.org/docs/dsl/ash/latest/resource/actions/read) option to create the four default actions. Add the following to your resource.
```elixir
actions do
defaults [:create, :read, :update, :destroy]
end
```
8. Try it out in iex by running your app with `iex -S mix`. Here are some examples:
Create two tickets:
```elixir
CoolDesk.Tickets.Ticket
|> Ash.Changeset.for_create(
:create,
%{subject: "My computer fell into Mount Doom."}
)
|> CoolDesk.Tickets.create!()
```
List your tickets
```elixir
CoolDesk.Tickets.read!(CoolDesk.Tickets)
```
Find tickets matching a filter
```elixir
require Ash.Query
CoolDesk.Tickets
|> Ash.Query.filter(contains(subject, "Mount Doom"))
|> CoolDesk.Tickets.read!()
```
Update a ticket
```elixir
ticket =
CoolDesk.Tickets.Ticket
|> Ash.Changeset.for_create(
:create,
%{subject: "My computer fell into Mount Doom."}
)
|> CoolDesk.Tickets.create!()
ticket
|> Ash.Changeset.for_update(
:update,
%{subject: "I threw my computer into Mount Doom."}
)
|> CoolDesk.Tickets.update!()
```
Or destroy it
```elixir
CoolDesk.Tickets.destroy!(ticket)
```
9. More resources
- Back your resources with data using [Data Layers](../concepts/data-layers.md)
- Make more complex [actions](../concepts/actions.md)
- View the [Overview & Architecture Diagrams](../guides/overview.md)