builderx_api-controllers

Guide to Phoenix Controller structure in builderx_api using FallbackController and standard tuple responses.

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Guide to Phoenix Controller structure in builderx_api using FallbackController and standard tuple responses.

Use cases: backend

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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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Skill name: builderx_api-controllers
Description: Guide to Phoenix Controller structure in builderx_api using FallbackController and standard tuple responses.
License: MIT
Metadata: author: Vũ Lưu · source: Source code builderx_api · version: 2026.03.25
Instructions: 39 lines in SKILL.md · view on GitHub

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name: only lowercase letters, digits and single hyphens allowed

Files (2)

SKILL.md
core-fallback.md · references/

SKILL.md (first lines)

# BuilderX API Controllers

> Conventions for handling HTTP requests and responses at the Web API layer.

## Core

| Topic | Description | Reference |
|-------|-------------|-----------|
| FallbackController | Centralized response handling via tuples | [core-fallback](references/core-fallback.md) |
| Tuple Returns | Standard formats like `{:success, ...}` or `{:failed, ...}` | [core-fallback](references/core-fallback.md) |

## Quick Reference

```elixir
defmodule BuilderxApiWeb.V1.ExampleController do
  use BuilderxApiWeb, :controller
  
  def show(conn, %{"id" => id}) do
    # Context functions should return tuples compatible with FallbackController instead of standard {:ok, data}
    # Example:
    {:success, :with_data, %{id: id, name: "Sample"}}
  end
  
  def delete(conn, _params) do
    # Return success without data
    {:success, :success_only}
  end

  def create(conn, _params) do
    # Return failure with a custom reason
    {:failed, :with_reason, "Invalid input data"}
    
    # Or return an error from a Changeset validation failure
    # {:error, changeset}
  end
end
```

From vuluu2k/skills, MIT.

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Stars: 1
Forks: 0
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Last commit (this folder): Mar 25, 2026 (7 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Version: 2026.03.25
License: MIT
Repository: github.com/vuluu2k/skills
Website: vskill.vercel.app
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: GitHub github-graphql

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builderx_api-controllers skill. Agent Mart. https://agentmart.dev/skills/vuluu2k-builderx-api-controllers (last updated 2026-10-24)