Phoenix:Guide:Overview

Phoenix

web framework

Features

mvc pattern

high developer productivity

high application performance

channel - real time feature

precompiled templates

Learn

elixir guide

elixir learning resource

phoenix learning resource

my collections

Phoenix Components

internal parts (each with its own purpose and role)

• endpoint: request lifecycle, dispatches request to router

• router: parses request and dispatches it to controller action

  • pipeline: groups of plugs to a set of routes

• controller: define action to handle request

  • action: prepare data and render or redirect

• view: render templates, act as a presenter, define helpers

• template: structure with dynamic data, precompiled and fast

• channel: manage sockets for easy realtime communication

• pub-sub: underlies the channel layer, allow client to subscribes to topics

  • pub-sub adapter: abstract for third-party pub-sub integration

Phoenix Layers

multi-layer system designed to be modular and flexible

• cowboy: web server. guide

• plug: a specification for constructing reusable modules or functions. guide, doc

  • plugs can be defined and executed in a set order, line pipeline.

  • example: authentication, params pre-processing, rendering, etc.

• ecto: orm, dsl, database wrapper

  • repo: a connection to an individual database

  • schema: data definition and associations

  • query: retrieve data from repo and cast it into schema

  • changeset: declare transformations action on data

    • includes: type casting, validations, and more

    • postgresql: default database

来源：Phoenix doc