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landing_page-controllers

Guide to Phoenix Controller structure in landing_page_backend using FallbackController, tuple responses, and permission plugs.

Skill by Vũ Lưu

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Guide to Phoenix Controller structure in landing_page_backend using FallbackController, tuple responses, and permission plugs.

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

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  • ~/.claude/skills/landing-page-controllers

What's inside

Skill name
landing_page-controllers
Description
Guide to Phoenix Controller structure in landing_page_backend using FallbackController, tuple responses, and permission plugs.
License
MIT
Metadata
author: Vũ Lưu · source: Source code landing_page_backend · version: 2026.03.30
Instructions
71 lines in SKILL.md · view on GitHub

Agent Skills spec issues

  • name: only lowercase letters, digits and single hyphens allowed

Files (2)

  • SKILL.md
  • core-fallback.md · references/

SKILL.md (first lines)

# Landing Page — Controllers

> Phoenix Controller conventions for Landing Page Backend.

## Core

| Topic | Description | Reference |
|-------|-------------|-----------|
| FallbackController | Centralized response handling via tuples | [core-fallback](references/core-fallback.md) |
| Permission Plugs | Action-level permission guards | [core-fallback](references/core-fallback.md) |
| Ecto.Multi in Controllers | Transactional operations across multiple steps | [core-fallback](references/core-fallback.md) |

## Quick Reference

```elixir
defmodule LandingPageWeb.V1.OrganizationController do
  use LandingPageWeb, :controller

  alias Ecto.Multi
  alias LandingPage.{Tools, Organizations, Repo}
  alias LandingPage.Organizations.{Organization, OrganizationMember}

  # Permission plugs — chỉ áp dụng cho specific actions
  plug LandingPageWeb.Plug.PermissionCheck,
       [role: :organization_admin, type: :organization]
       when action in [:bulk_update_rights, :update_invite_code]

  plug LandingPageWeb.Plug.SubscriptionPlug
       when action in [:create_organization]

  action_fallback LandingPageWeb.FallbackController

  def create_organization(conn, %{"name" => name}) do
    account = conn.assigns.account
    invite_code = Tools.randomizer(3) <> "-" <> Tools.randomizer(1) <> "-" <> Tools.randomizer(2)

    multi = Multi.new()
      |> Multi.run(:organization, fn _, _ ->
        Organizations.create_organization(%{
          name: name, owner_id: account.id,
          settings: %{sync: %{sync_draft_to_pos: true}},
          invite_code: invite_code
        })
      end)
      |> Multi.run(:organization_members, fn _, %{organization: org} ->
        Organizations.create_organization_members(org.id, account.id,
          Enum.OrganizationPermission.value(:organization_owner))
      end)

    case Repo.transaction(multi) do
      {:ok, result} ->
        org = Repo.preload(result.organization, :owner)
        {:success, :with_data, "organization", Organization.json(org)}
      _ ->
        {:failed, :with_reason, "Create Organization Failed! ERROR CODE: CO0001"}
    end
  end

  def list_organizations(conn, params) do
    account = conn.assigns.account
    case Organizations.get_organizations(account.id, params) do
      {:ok, orgs} ->
        {:success, :with_data, "organizations", Enum.map(orgs, &Organization.json/1)}
      _ ->
        {:failed, :with_reason, "Failed to get organizations"}
    end
  end
end
```

From vuluu2k/skills, MIT.

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Last commit (this folder)
Mar 30, 2026 (7 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Version
2026.03.30
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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landing_page-controllers skill. Agent Mart. https://agentmart.dev/skills/vuluu2k-landing-page-controllers (last updated 2026-10-24)