Model your domain, derive the rest
Build powerful Elixir applications with a flexible tool-chain.
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Resources
Plug and play building blocks that scale with the complexity of your application.
GraphQL
Easily create rich, customizable, full featured GraphQL APIs backed by Absinthe.
alt-curly
JSON:API
Create JSON:API spec compliant apis in minutes, not days.
Authentication
Effortless authentication with magic link and social login out of the box.
Community
A thriving community of people working together to build and learn.
Authorization
Add row and field level policies to prohibit access to data.
Multitenancy
Built in strategies for splitting your application by tenant.
Data Layers
Postgres, Ets, Mnesia, CSV and more on the way!
Admin
A push-button admin interface you can drop right into your application.
Extensions
A suite of tools for you to build your own extensions and DSLs.
Observability
Custom tracers and rich telemetry events allow you to export high fidelity observability data.
Compatibility
Works great with Phoenix, Ecto and all the other first rate tools in the Elixir ecosystem.
Our Sponsors

"The ease of defining our domain model and configuring Ash to generate a powerful GraphQL API has been a game-changer. What used to be complex and time-consuming has become simplicity itself."

Alan Heywood

CTO, HereTask

"Through its declarative extensibility, Ash delivers more than you'd expect: Powerful APIs with filtering/sorting/pagination/calculations/aggregations, pub/sub, authorization, rich introspection, GraphQL... It's what empowers this solo developer to build an ambitious ERP!"

Frank Dugan III

System Specialist, SunnyCor Inc.

"I’m constantly blown away with the quality of work and support the Ash community has put into this project. It’s gotten to the point that I can’t imagine starting a new Elixir project that doesn’t use Ash."

Brett Kolodny

Full stack engineer, MEW

"Ash is an incredibly powerful idea that gives Alembic a massive competitive advantage. It empowers us to build wildly ambitious applications for our clients with tiny teams, while consistently delivering the high level of quality that our customers have come to expect."

Josh Price

Technical Director, Alembic

"Ash Framework enabled us to build a robust platform for delivering financial services using bitcoin. Ash proved itself to our team by handling innovative use cases with ease and it continues to evolve ahead of our growing list of needs."

Yousef Janajri

CTO & Co-Founder, Coinbits

"The more I’ve used Ash, the more blown away I am by how much I get out of it – and how little boilerplate I have to write. I’m yet to encounter a situation where I would need to fight the “Ash way” of doing things, but the framework still allows me to choose how I build my software."

Juha Lehtonen

Senior Software Developer

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Alembic can help

Alembic offers expert support to help you overcome any challenges and ensure the success of your project. Our team has extensive knowledge and experience with Ash Framework, as well as the larger Elixir ecosystem and can provide personalized assistance to help you build products, implement new features, or improve your existing codebases. Contact us to learn more about our support options and how we can help your project succeed.

Define a resource

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defmodule Example.Post do
  use Ash.Resource,
    data_layer: AshPostgres.DataLayer

  resource do
    description "A post is the primary sharable entity in our system"
  end

  postgres do
    table "posts"
    repo Example.Repo
  end

  attributes do
    attribute :text, :string do
      allow_nil? false
      description "The body of the text"
    end

    attribute :visibility, :atom do
      constraints [
        one_of: [:friends, :everyone]
      ]
      description "Which set of users this post should be visible to"
    end
  end

  actions do
    update :react do
      argument :type, Example.Types.ReactionType do
        allow_nil? false
      end

      change manage_relationship(
        :type,
        :reactions,
        type: :append
      )
    end
  end

  relationships do
    belongs_to :author, Example.User do
      allow_nil? true
    end

    has_many :reactions, Example.Reaction
  end
end
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post = Example.Post.create!(%{
  text: "Declarative programming is fun!"
})

Example.Post.react!(post, %{type: :like})

Example.Post
|> Ash.Query.filter(likes > 10)
|> Ash.Query.sort(likes: :desc)
|> Example.read!()
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graphql do
  type :post

  queries do
    get :get_post, :read
    list :feed, :read
  end

  mutations do
    create :create_post, :create
    update :react_to_post, :react
  end
end