Make it so 🚀

.formatter.exs

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+[
+  import_deps: [:ecto, :phoenix],
+  inputs: ["*.{ex,exs}", "priv/*/seeds.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  subdirectories: ["priv/*/migrations"]
+]

.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+live_beats-*.tar
+
+# Ignore assets that are produced by build tools.
+/priv/static/assets/
+
+# In case you use Node.js/npm, you want to ignore these.
+npm-debug.log
+/assets/node_modules/
+

README.md

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+# LiveBeats
+
+To start your Phoenix server:
+
+  * Install dependencies with `mix deps.get`
+  * Create and migrate your database with `mix ecto.setup`
+  * Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
+
+Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
+
+Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
+
+## Learn more
+
+  * Official website: https://www.phoenixframework.org/
+  * Guides: https://hexdocs.pm/phoenix/overview.html
+  * Docs: https://hexdocs.pm/phoenix
+  * Forum: https://elixirforum.com/c/phoenix-forum
+  * Source: https://github.com/phoenixframework/phoenix

assets/css/app.css

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+/* This file is for your main application CSS */
+@import "./phoenix.css";
+
+/* Alerts and form errors used by phx.new */
+.alert {
+  padding: 15px;
+  margin-bottom: 20px;
+  border: 1px solid transparent;
+  border-radius: 4px;
+}
+.alert-info {
+  color: #31708f;
+  background-color: #d9edf7;
+  border-color: #bce8f1;
+}
+.alert-warning {
+  color: #8a6d3b;
+  background-color: #fcf8e3;
+  border-color: #faebcc;
+}
+.alert-danger {
+  color: #a94442;
+  background-color: #f2dede;
+  border-color: #ebccd1;
+}
+.alert p {
+  margin-bottom: 0;
+}
+.alert:empty {
+  display: none;
+}
+.invalid-feedback {
+  color: #a94442;
+  display: block;
+  margin: -1rem 0 2rem;
+}
+
+/* LiveView specific classes for your customization */
+.phx-no-feedback.invalid-feedback,
+.phx-no-feedback .invalid-feedback {
+  display: none;
+}
+
+.phx-click-loading {
+  opacity: 0.5;
+  transition: opacity 1s ease-out;
+}
+
+.phx-disconnected{
+  cursor: wait;
+}
+.phx-disconnected *{
+  pointer-events: none;
+}
+
+.phx-modal {
+  opacity: 1!important;
+  position: fixed;
+  z-index: 1;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  overflow: auto;
+  background-color: rgb(0,0,0);
+  background-color: rgba(0,0,0,0.4);
+}
+
+.phx-modal-content {
+  background-color: #fefefe;
+  margin: 15vh auto;
+  padding: 20px;
+  border: 1px solid #888;
+  width: 80%;
+}
+
+.phx-modal-close {
+  color: #aaa;
+  float: right;
+  font-size: 28px;
+  font-weight: bold;
+}
+
+.phx-modal-close:hover,
+.phx-modal-close:focus {
+  color: black;
+  text-decoration: none;
+  cursor: pointer;
+}

assets/js/app.js

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+// We import the CSS which is extracted to its own file by esbuild.
+// Remove this line if you add a your own CSS build pipeline (e.g postcss).
+import "alpinejs"
+
+
+// If you want to use Phoenix channels, run `mix help phx.gen.channel`
+// to get started and then uncomment the line below.
+// import "./user_socket.js"
+
+// You can include dependencies in two ways.
+//
+// The simplest option is to put them in assets/vendor and
+// import them using relative paths:
+//
+//     import "./vendor/some-package.js"
+//
+// Alternatively, you can `npm install some-package` and import
+// them using a path starting with the package name:
+//
+//     import "some-package"
+//
+
+// Include phoenix_html to handle method=PUT/DELETE in forms and buttons.
+import "phoenix_html"
+// Establish Phoenix Socket and LiveView configuration.
+import {Socket} from "phoenix"
+import {LiveSocket} from "phoenix_live_view"
+import topbar from "../vendor/topbar"
+
+let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
+let liveSocket = new LiveSocket("/live", Socket, {
+  params: { _csrf_token: csrfToken },
+  dom: {
+    onBeforeElUpdated(from, to) {
+      if (from._x_dataStack) {
+        window.Alpine.clone(from, to);
+      }
+    },
+  }
+})
+
+// Show progress bar on live navigation and form submits
+topbar.config({barColors: {0: "#29d"}, shadowColor: "rgba(0, 0, 0, .3)"})
+window.addEventListener("phx:page-loading-start", info => topbar.show())
+window.addEventListener("phx:page-loading-stop", info => topbar.hide())
+
+// connect if there are any LiveViews on the page
+liveSocket.connect()
+
+// expose liveSocket on window for web console debug logs and latency simulation:
+// >> liveSocket.enableDebug()
+// >> liveSocket.enableLatencySim(1000)  // enabled for duration of browser session
+// >> liveSocket.disableLatencySim()
+window.liveSocket = liveSocket

assets/package.json

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+{
+  "scripts": {
+    "deploy": "NODE_ENV=production tailwindcss --postcss --minify -i css/app.css -o ../priv/static/assets/app.css"
+  },
+  "dependencies": {
+    "alpinejs": "^3.2.2"
+  },
+  "devDependencies": {
+    "autoprefixer": "^10.2.0",
+    "postcss": "^8.3.5",
+    "postcss-import": "^14.0.2",
+    "tailwindcss": "^2.2.4"
+  }
+}

assets/postcss.config.js

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+module.exports = {
+  plugins: {
+    'postcss-import': {},
+    tailwindcss: {},
+    autoprefixer: {},
+  }
+}

assets/tailwind.config.js

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+
+module.exports = {
+  mode: 'jit',
+  purge: [
+    './js/**/*.js',
+    '../lib/*_web/**/*.*ex'
+  ],
+  theme: {
+  },
+  variants: {
+    extend: {},
+  },
+  plugins: [],
+}

assets/vendor/topbar.js

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+/**
+ * @license MIT
+ * topbar 1.0.0, 2021-01-06
+ * http://buunguyen.github.io/topbar
+ * Copyright (c) 2021 Buu Nguyen
+ */
+(function (window, document) {
+  "use strict";
+
+  // https://gist.github.com/paulirish/1579671
+  (function () {
+    var lastTime = 0;
+    var vendors = ["ms", "moz", "webkit", "o"];
+    for (var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
+      window.requestAnimationFrame =
+        window[vendors[x] + "RequestAnimationFrame"];
+      window.cancelAnimationFrame =
+        window[vendors[x] + "CancelAnimationFrame"] ||
+        window[vendors[x] + "CancelRequestAnimationFrame"];
+    }
+    if (!window.requestAnimationFrame)
+      window.requestAnimationFrame = function (callback, element) {
+        var currTime = new Date().getTime();
+        var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+        var id = window.setTimeout(function () {
+          callback(currTime + timeToCall);
+        }, timeToCall);
+        lastTime = currTime + timeToCall;
+        return id;
+      };
+    if (!window.cancelAnimationFrame)
+      window.cancelAnimationFrame = function (id) {
+        clearTimeout(id);
+      };
+  })();
+
+  var canvas,
+    progressTimerId,
+    fadeTimerId,
+    currentProgress,
+    showing,
+    addEvent = function (elem, type, handler) {
+      if (elem.addEventListener) elem.addEventListener(type, handler, false);
+      else if (elem.attachEvent) elem.attachEvent("on" + type, handler);
+      else elem["on" + type] = handler;
+    },
+    options = {
+      autoRun: true,
+      barThickness: 3,
+      barColors: {
+        0: "rgba(26,  188, 156, .9)",
+        ".25": "rgba(52,  152, 219, .9)",
+        ".50": "rgba(241, 196, 15,  .9)",
+        ".75": "rgba(230, 126, 34,  .9)",
+        "1.0": "rgba(211, 84,  0,   .9)",
+      },
+      shadowBlur: 10,
+      shadowColor: "rgba(0,   0,   0,   .6)",
+      className: null,
+    },
+    repaint = function () {
+      canvas.width = window.innerWidth;
+      canvas.height = options.barThickness * 5; // need space for shadow
+
+      var ctx = canvas.getContext("2d");
+      ctx.shadowBlur = options.shadowBlur;
+      ctx.shadowColor = options.shadowColor;
+
+      var lineGradient = ctx.createLinearGradient(0, 0, canvas.width, 0);
+      for (var stop in options.barColors)
+        lineGradient.addColorStop(stop, options.barColors[stop]);
+      ctx.lineWidth = options.barThickness;
+      ctx.beginPath();
+      ctx.moveTo(0, options.barThickness / 2);
+      ctx.lineTo(
+        Math.ceil(currentProgress * canvas.width),
+        options.barThickness / 2
+      );
+      ctx.strokeStyle = lineGradient;
+      ctx.stroke();
+    },
+    createCanvas = function () {
+      canvas = document.createElement("canvas");
+      var style = canvas.style;
+      style.position = "fixed";
+      style.top = style.left = style.right = style.margin = style.padding = 0;
+      style.zIndex = 100001;
+      style.display = "none";
+      if (options.className) canvas.classList.add(options.className);
+      document.body.appendChild(canvas);
+      addEvent(window, "resize", repaint);
+    },
+    topbar = {
+      config: function (opts) {
+        for (var key in opts)
+          if (options.hasOwnProperty(key)) options[key] = opts[key];
+      },
+      show: function () {
+        if (showing) return;
+        showing = true;
+        if (fadeTimerId !== null) window.cancelAnimationFrame(fadeTimerId);
+        if (!canvas) createCanvas();
+        canvas.style.opacity = 1;
+        canvas.style.display = "block";
+        topbar.progress(0);
+        if (options.autoRun) {
+          (function loop() {
+            progressTimerId = window.requestAnimationFrame(loop);
+            topbar.progress(
+              "+" + 0.05 * Math.pow(1 - Math.sqrt(currentProgress), 2)
+            );
+          })();
+        }
+      },
+      progress: function (to) {
+        if (typeof to === "undefined") return currentProgress;
+        if (typeof to === "string") {
+          to =
+            (to.indexOf("+") >= 0 || to.indexOf("-") >= 0
+              ? currentProgress
+              : 0) + parseFloat(to);
+        }
+        currentProgress = to > 1 ? 1 : to;
+        repaint();
+        return currentProgress;
+      },
+      hide: function () {
+        if (!showing) return;
+        showing = false;
+        if (progressTimerId != null) {
+          window.cancelAnimationFrame(progressTimerId);
+          progressTimerId = null;
+        }
+        (function loop() {
+          if (topbar.progress("+.1") >= 1) {
+            canvas.style.opacity -= 0.05;
+            if (canvas.style.opacity <= 0.05) {
+              canvas.style.display = "none";
+              fadeTimerId = null;
+              return;
+            }
+          }
+          fadeTimerId = window.requestAnimationFrame(loop);
+        })();
+      },
+    };
+
+  if (typeof module === "object" && typeof module.exports === "object") {
+    module.exports = topbar;
+  } else if (typeof define === "function" && define.amd) {
+    define(function () {
+      return topbar;
+    });
+  } else {
+    this.topbar = topbar;
+  }
+}.call(this, window, document));

config/config.exs

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+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Config module.
+#
+# This configuration file is loaded before any dependency and
+# is restricted to this project.
+
+# General application configuration
+import Config
+
+config :live_beats,
+  ecto_repos: [LiveBeats.Repo]
+
+# Configures the endpoint
+config :live_beats, LiveBeatsWeb.Endpoint,
+  url: [host: "localhost"],
+  secret_key_base: "55naB2xjgnsDeN+kKz7xoeqx3vIPcpCkAmg+CoVR/F7iZ5MQgNE6ykiNXoFa7wcC",
+  render_errors: [view: LiveBeatsWeb.ErrorView, accepts: ~w(html json), layout: false],
+  pubsub_server: LiveBeats.PubSub,
+  live_view: [signing_salt: "OHBVr+w4"]
+
+# Configures the mailer
+#
+# By default it uses the "Local" adapter which stores the emails
+# locally. You can see the emails in your browser, at "/dev/mailbox".
+#
+# For production it's recommended to configure a different adapter
+# at the `config/runtime.exs`.
+config :live_beats, LiveBeats.Mailer, adapter: Swoosh.Adapters.Local
+
+# Swoosh API client is needed for adapters other than SMTP.
+config :swoosh, :api_client, false
+
+# Configure esbuild (the version is required)
+config :esbuild,
+  version: "0.12.18",
+  default: [
+    args: ~w(js/app.js --bundle --target=es2016 --outdir=../priv/static/assets),
+    cd: Path.expand("../assets", __DIR__),
+    env: %{"NODE_PATH" => Path.expand("../deps", __DIR__)}
+  ]
+
+# Configures Elixir's Logger
+config :logger, :console,
+  format: "$time $metadata[$level] $message\n",
+  metadata: [:request_id]
+
+# Use Jason for JSON parsing in Phoenix
+config :phoenix, :json_library, Jason
+
+# Import environment specific config. This must remain at the bottom
+# of this file so it overrides the configuration defined above.
+import_config "#{config_env()}.exs"

config/dev.exs

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+import Config
+
+# Configure your database
+config :live_beats, LiveBeats.Repo,
+  username: "postgres",
+  password: "postgres",
+  database: "live_beats_dev",
+  hostname: "localhost",
+  show_sensitive_data_on_connection_error: true,
+  pool_size: 10
+
+# For development, we disable any cache and enable
+# debugging and code reloading.
+#
+# The watchers configuration can be used to run external
+# watchers to your application. For example, we use it
+# with esbuild to bundle .js and .css sources.
+config :live_beats, LiveBeatsWeb.Endpoint,
+  # Binding to loopback ipv4 address prevents access from other machines.
+  # Change to `ip: {0, 0, 0, 0}` to allow access from other machines.
+  http: [ip: {127, 0, 0, 1}, port: 4000],
+  debug_errors: true,
+  code_reloader: true,
+  check_origin: false,
+  watchers: [
+    # Start the esbuild watcher by calling Esbuild.install_and_run(:default, args)
+    esbuild: {Esbuild, :install_and_run, [:default, ~w(--sourcemap=inline --watch)]},
+    npx: [
+       "tailwindcss",
+       "--input=css/app.css",
+       "--output=../priv/static/assets/app.css",
+       "--postcss",
+       "--watch",
+       cd: Path.expand("../assets", __DIR__)
+     ]
+  ]
+
+# ## SSL Support
+#
+# In order to use HTTPS in development, a self-signed
+# certificate can be generated by running the following
+# Mix task:
+#
+#     mix phx.gen.cert
+#
+# Note that this task requires Erlang/OTP 20 or later.
+# Run `mix help phx.gen.cert` for more information.
+#
+# The `http:` config above can be replaced with:
+#
+#     https: [
+#       port: 4001,
+#       cipher_suite: :strong,
+#       keyfile: "priv/cert/selfsigned_key.pem",
+#       certfile: "priv/cert/selfsigned.pem"
+#     ],
+#
+# If desired, both `http:` and `https:` keys can be
+# configured to run both http and https servers on
+# different ports.
+
+# Watch static and templates for browser reloading.
+config :live_beats, LiveBeatsWeb.Endpoint,
+  live_reload: [
+    patterns: [
+      ~r"priv/static/.*(js|css|png|jpeg|jpg|gif|svg)$",
+      ~r"priv/gettext/.*(po)$",
+      ~r"lib/live_beats_web/(live|views)/.*(ex)$",
+      ~r"lib/live_beats_web/templates/.*(eex)$"
+    ]
+  ]
+
+# Do not include metadata nor timestamps in development logs
+config :logger, :console, format: "[$level] $message\n"
+
+# Set a higher stacktrace during development. Avoid configuring such
+# in production as building large stacktraces may be expensive.
+config :phoenix, :stacktrace_depth, 20
+
+# Initialize plugs at runtime for faster development compilation
+config :phoenix, :plug_init_mode, :runtime

config/prod.exs

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+import Config
+
+# For production, don't forget to configure the url host
+# to something meaningful, Phoenix uses this information
+# when generating URLs.
+#
+# Note we also include the path to a cache manifest
+# containing the digested version of static files. This
+# manifest is generated by the `mix phx.digest` task,
+# which you should run after static files are built and
+# before starting your production server.
+config :live_beats, LiveBeatsWeb.Endpoint,
+  url: [host: "example.com", port: 80],
+  cache_static_manifest: "priv/static/cache_manifest.json"
+
+# Do not print debug messages in production
+config :logger, level: :info
+
+# ## SSL Support
+#
+# To get SSL working, you will need to add the `https` key
+# to the previous section and set your `:url` port to 443:
+#
+#     config :live_beats, LiveBeatsWeb.Endpoint,
+#       ...,
+#       url: [host: "example.com", port: 443],
+#       https: [
+#         ...,
+#         port: 443,
+#         cipher_suite: :strong,
+#         keyfile: System.get_env("SOME_APP_SSL_KEY_PATH"),
+#         certfile: System.get_env("SOME_APP_SSL_CERT_PATH")
+#       ]
+#
+# The `cipher_suite` is set to `:strong` to support only the
+# latest and more secure SSL ciphers. This means old browsers
+# and clients may not be supported. You can set it to
+# `:compatible` for wider support.
+#
+# `:keyfile` and `:certfile` expect an absolute path to the key
+# and cert in disk or a relative path inside priv, for example
+# "priv/ssl/server.key". For all supported SSL configuration
+# options, see https://hexdocs.pm/plug/Plug.SSL.html#configure/1
+#
+# We also recommend setting `force_ssl` in your endpoint, ensuring
+# no data is ever sent via http, always redirecting to https:
+#
+#     config :live_beats, LiveBeatsWeb.Endpoint,
+#       force_ssl: [hsts: true]
+#
+# Check `Plug.SSL` for all available options in `force_ssl`.

config/runtime.exs

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+import Config
+
+# config/runtime.exs is executed for all environments, including
+# during releases. It is executed after compilation and before the
+# system starts, so it is typically used to load production configuration
+# and secrets from environment variables or elsewhere. Do not define
+# any compile-time configuration in here, as it won't be applied.
+# The block below contains prod specific runtime configuration.
+if config_env() == :prod do
+  database_url =
+    System.get_env("DATABASE_URL") ||
+      raise """
+      environment variable DATABASE_URL is missing.
+      For example: ecto://USER:PASS@HOST/DATABASE
+      """
+
+  config :live_beats, LiveBeats.Repo,
+    # ssl: true,
+    # socket_options: [:inet6],
+    url: database_url,
+    pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10")
+
+  secret_key_base =
+    System.get_env("SECRET_KEY_BASE") ||
+      raise """
+      environment variable SECRET_KEY_BASE is missing.
+      You can generate one by calling: mix phx.gen.secret
+      """
+
+  config :live_beats, LiveBeatsWeb.Endpoint,
+    http: [
+      # Enable IPv6 and bind on all interfaces.
+      # Set it to  {0, 0, 0, 0, 0, 0, 0, 1} for local network only access.
+      # See the documentation on https://hexdocs.pm/plug_cowboy/Plug.Cowboy.html
+      # for details about using IPv6 vs IPv4 and loopback vs public addresses.
+      ip: {0, 0, 0, 0, 0, 0, 0, 0},
+      port: String.to_integer(System.get_env("PORT") || "4000")
+    ],
+    secret_key_base: secret_key_base
+
+  # ## Using releases
+  #
+  # If you are doing OTP releases, you need to instruct Phoenix
+  # to start each relevant endpoint:
+  #
+  #     config :live_beats, LiveBeatsWeb.Endpoint, server: true
+  #
+  # Then you can assemble a release by calling `mix release`.
+  # See `mix help release` for more information.
+
+  # ## Configuring the mailer
+  #
+  # In production you need to configure the mailer to use a different adapter.
+  # Also, you may need to configure the Swoosh API client of your choice if you
+  # are not using SMTP. Here is an example of the configuration:
+  #
+  #     config :live_beats, LiveBeats.Mailer,
+  #       adapter: Swoosh.Adapters.Mailgun,
+  #       api_key: System.get_env("MAILGUN_API_KEY"),
+  #       domain: System.get_env("MAILGUN_DOMAIN")
+  #
+  # For this example you need include a HTTP client required by Swoosh API client.
+  # Swoosh supports Hackney and Finch out of the box:
+  #
+  #     config :swoosh, :api_client, Swoosh.ApiClient.Hackney
+  #
+  # See https://hexdocs.pm/swoosh/Swoosh.html#module-installation for details.
+end

config/test.exs

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+import Config
+
+# Configure your database
+#
+# The MIX_TEST_PARTITION environment variable can be used
+# to provide built-in test partitioning in CI environment.
+# Run `mix help test` for more information.
+config :live_beats, LiveBeats.Repo,
+  username: "postgres",
+  password: "postgres",
+  database: "live_beats_test#{System.get_env("MIX_TEST_PARTITION")}",
+  hostname: "localhost",
+  pool: Ecto.Adapters.SQL.Sandbox,
+  pool_size: 10
+
+# We don't run a server during test. If one is required,
+# you can enable the server option below.
+config :live_beats, LiveBeatsWeb.Endpoint,
+  http: [ip: {127, 0, 0, 1}, port: 4002],
+  server: false
+
+# In test we don't send emails.
+config :live_beats, LiveBeats.Mailer, adapter: Swoosh.Adapters.Test
+
+# Print only warnings and errors during test
+config :logger, level: :warn
+
+# Initialize plugs at runtime for faster test compilation
+config :phoenix, :plug_init_mode, :runtime

lib/live_beats.ex

@@ -0,0 +1,9 @@
+defmodule LiveBeats do
+  @moduledoc """
+  LiveBeats keeps the contexts that define your domain
+  and business logic.
+
+  Contexts are also responsible for managing your data, regardless
+  if it comes from the database, an external API or others.
+  """
+end

lib/live_beats/application.ex

@@ -0,0 +1,36 @@
+defmodule LiveBeats.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    children = [
+      # Start the Ecto repository
+      LiveBeats.Repo,
+      # Start the Telemetry supervisor
+      LiveBeatsWeb.Telemetry,
+      # Start the PubSub system
+      {Phoenix.PubSub, name: LiveBeats.PubSub},
+      # Start the Endpoint (http/https)
+      LiveBeatsWeb.Endpoint
+      # Start a worker by calling: LiveBeats.Worker.start_link(arg)
+      # {LiveBeats.Worker, arg}
+    ]
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: LiveBeats.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  @impl true
+  def config_change(changed, _new, removed) do
+    LiveBeatsWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end

lib/live_beats/mailer.ex

@@ -0,0 +1,3 @@
+defmodule LiveBeats.Mailer do
+  use Swoosh.Mailer, otp_app: :live_beats
+end

lib/live_beats/repo.ex

@@ -0,0 +1,5 @@
+defmodule LiveBeats.Repo do
+  use Ecto.Repo,
+    otp_app: :live_beats,
+    adapter: Ecto.Adapters.Postgres
+end

lib/live_beats_web.ex

@@ -0,0 +1,102 @@
+defmodule LiveBeatsWeb do
+  @moduledoc """
+  The entrypoint for defining your web interface, such
+  as controllers, views, channels and so on.
+
+  This can be used in your application as:
+
+      use LiveBeatsWeb, :controller
+      use LiveBeatsWeb, :view
+
+  The definitions below will be executed for every view,
+  controller, etc, so keep them short and clean, focused
+  on imports, uses and aliases.
+
+  Do NOT define functions inside the quoted expressions
+  below. Instead, define any helper function in modules
+  and import those modules here.
+  """
+
+  def controller do
+    quote do
+      use Phoenix.Controller, namespace: LiveBeatsWeb
+
+      import Plug.Conn
+      import LiveBeatsWeb.Gettext
+      alias LiveBeatsWeb.Router.Helpers, as: Routes
+    end
+  end
+
+  def view do
+    quote do
+      use Phoenix.View,
+        root: "lib/live_beats_web/templates",
+        namespace: LiveBeatsWeb
+
+      # Import convenience functions from controllers
+      import Phoenix.Controller,
+        only: [get_flash: 1, get_flash: 2, view_module: 1, view_template: 1]
+
+      # Include shared imports and aliases for views
+      unquote(view_helpers())
+    end
+  end
+
+  def live_view do
+    quote do
+      use Phoenix.LiveView,
+        layout: {LiveBeatsWeb.LayoutView, "live.html"}
+
+      unquote(view_helpers())
+    end
+  end
+
+  def live_component do
+    quote do
+      use Phoenix.LiveComponent
+
+      unquote(view_helpers())
+    end
+  end
+
+  def router do
+    quote do
+      use Phoenix.Router
+
+      import Plug.Conn
+      import Phoenix.Controller
+      import Phoenix.LiveView.Router
+    end
+  end
+
+  def channel do
+    quote do
+      use Phoenix.Channel
+      import LiveBeatsWeb.Gettext
+    end
+  end
+
+  defp view_helpers do
+    quote do
+      # Use all HTML functionality (forms, tags, etc)
+      use Phoenix.HTML
+
+      # Import LiveView and .heex helpers (live_render, live_patch, <.form>, etc)
+      import Phoenix.LiveView.Helpers
+
+      # Import basic rendering functionality (render, render_layout, etc)
+      import Phoenix.View
+
+      import LiveBeatsWeb.ErrorHelpers
+      import LiveBeatsWeb.Gettext
+      alias LiveBeatsWeb.Router.Helpers, as: Routes
+    end
+  end
+
+  @doc """
+  When used, dispatch to the appropriate controller/view/etc.
+  """
+  defmacro __using__(which) when is_atom(which) do
+    apply(__MODULE__, which, [])
+  end
+end

lib/live_beats_web/controllers/page_controller.ex

@@ -0,0 +1,7 @@
+defmodule LiveBeatsWeb.PageController do
+  use LiveBeatsWeb, :controller
+
+  def index(conn, _params) do
+    render(conn, "index.html")
+  end
+end

lib/live_beats_web/endpoint.ex

@@ -0,0 +1,50 @@
+defmodule LiveBeatsWeb.Endpoint do
+  use Phoenix.Endpoint, otp_app: :live_beats
+
+  # The session will be stored in the cookie and signed,
+  # this means its contents can be read but not tampered with.
+  # Set :encryption_salt if you would also like to encrypt it.
+  @session_options [
+    store: :cookie,
+    key: "_live_beats_key",
+    signing_salt: "9OALgV62"
+  ]
+
+  socket "/live", Phoenix.LiveView.Socket, websocket: [connect_info: [session: @session_options]]
+
+  # Serve at "/" the static files from "priv/static" directory.
+  #
+  # You should set gzip to true if you are running phx.digest
+  # when deploying your static files in production.
+  plug Plug.Static,
+    at: "/",
+    from: :live_beats,
+    gzip: false,
+    only: ~w(assets fonts images favicon.ico robots.txt)
+
+  # Code reloading can be explicitly enabled under the
+  # :code_reloader configuration of your endpoint.
+  if code_reloading? do
+    socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
+    plug Phoenix.LiveReloader
+    plug Phoenix.CodeReloader
+    plug Phoenix.Ecto.CheckRepoStatus, otp_app: :live_beats
+  end
+
+  plug Phoenix.LiveDashboard.RequestLogger,
+    param_key: "request_logger",
+    cookie_key: "request_logger"
+
+  plug Plug.RequestId
+  plug Plug.Telemetry, event_prefix: [:phoenix, :endpoint]
+
+  plug Plug.Parsers,
+    parsers: [:urlencoded, :multipart, :json],
+    pass: ["*/*"],
+    json_decoder: Phoenix.json_library()
+
+  plug Plug.MethodOverride
+  plug Plug.Head
+  plug Plug.Session, @session_options
+  plug LiveBeatsWeb.Router
+end

lib/live_beats_web/gettext.ex

@@ -0,0 +1,24 @@
+defmodule LiveBeatsWeb.Gettext do
+  @moduledoc """
+  A module providing Internationalization with a gettext-based API.
+
+  By using [Gettext](https://hexdocs.pm/gettext),
+  your module gains a set of macros for translations, for example:
+
+      import LiveBeatsWeb.Gettext
+
+      # Simple translation
+      gettext("Here is the string to translate")
+
+      # Plural translation
+      ngettext("Here is the string to translate",
+               "Here are the strings to translate",
+               3)
+
+      # Domain-based translation
+      dgettext("errors", "Here is the error message to translate")
+
+  See the [Gettext Docs](https://hexdocs.pm/gettext) for detailed usage.
+  """
+  use Gettext, otp_app: :live_beats
+end

lib/live_beats_web/router.ex

@@ -0,0 +1,55 @@
+defmodule LiveBeatsWeb.Router do
+  use LiveBeatsWeb, :router
+
+  pipeline :browser do
+    plug :accepts, ["html"]
+    plug :fetch_session
+    plug :fetch_live_flash
+    plug :put_root_layout, {LiveBeatsWeb.LayoutView, :root}
+    plug :protect_from_forgery
+    plug :put_secure_browser_headers
+  end
+
+  pipeline :api do
+    plug :accepts, ["json"]
+  end
+
+  scope "/", LiveBeatsWeb do
+    pipe_through :browser
+
+    get "/", PageController, :index
+  end
+
+  # Other scopes may use custom stacks.
+  # scope "/api", LiveBeatsWeb do
+  #   pipe_through :api
+  # end
+
+  # Enables LiveDashboard only for development
+  #
+  # If you want to use the LiveDashboard in production, you should put
+  # it behind authentication and allow only admins to access it.
+  # If your application does not have an admins-only section yet,
+  # you can use Plug.BasicAuth to set up some basic authentication
+  # as long as you are also using SSL (which you should anyway).
+  if Mix.env() in [:dev, :test] do
+    import Phoenix.LiveDashboard.Router
+
+    scope "/" do
+      pipe_through :browser
+      live_dashboard "/dashboard", metrics: LiveBeatsWeb.Telemetry
+    end
+  end
+
+  # Enables the Swoosh mailbox preview in development.
+  #
+  # Note that preview only shows emails that were sent by the same
+  # node running the Phoenix server.
+  if Mix.env() == :dev do
+    scope "/dev" do
+      pipe_through :browser
+
+      forward "/mailbox", Plug.Swoosh.MailboxPreview
+    end
+  end
+end

lib/live_beats_web/telemetry.ex

@@ -0,0 +1,71 @@
+defmodule LiveBeatsWeb.Telemetry do
+  use Supervisor
+  import Telemetry.Metrics
+
+  def start_link(arg) do
+    Supervisor.start_link(__MODULE__, arg, name: __MODULE__)
+  end
+
+  @impl true
+  def init(_arg) do
+    children = [
+      # Telemetry poller will execute the given period measurements
+      # every 10_000ms. Learn more here: https://hexdocs.pm/telemetry_metrics
+      {:telemetry_poller, measurements: periodic_measurements(), period: 10_000}
+      # Add reporters as children of your supervision tree.
+      # {Telemetry.Metrics.ConsoleReporter, metrics: metrics()}
+    ]
+
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+
+  def metrics do
+    [
+      # Phoenix Metrics
+      summary("phoenix.endpoint.stop.duration",
+        unit: {:native, :millisecond}
+      ),
+      summary("phoenix.router_dispatch.stop.duration",
+        tags: [:route],
+        unit: {:native, :millisecond}
+      ),
+
+      # Database Metrics
+      summary("live_beats.repo.query.total_time",
+        unit: {:native, :millisecond},
+        description: "The sum of the other measurements"
+      ),
+      summary("live_beats.repo.query.decode_time",
+        unit: {:native, :millisecond},
+        description: "The time spent decoding the data received from the database"
+      ),
+      summary("live_beats.repo.query.query_time",
+        unit: {:native, :millisecond},
+        description: "The time spent executing the query"
+      ),
+      summary("live_beats.repo.query.queue_time",
+        unit: {:native, :millisecond},
+        description: "The time spent waiting for a database connection"
+      ),
+      summary("live_beats.repo.query.idle_time",
+        unit: {:native, :millisecond},
+        description:
+          "The time the connection spent waiting before being checked out for the query"
+      ),
+
+      # VM Metrics
+      summary("vm.memory.total", unit: {:byte, :kilobyte}),
+      summary("vm.total_run_queue_lengths.total"),
+      summary("vm.total_run_queue_lengths.cpu"),
+      summary("vm.total_run_queue_lengths.io")
+    ]
+  end
+
+  defp periodic_measurements do
+    [
+      # A module, function and arguments to be invoked periodically.
+      # This function must call :telemetry.execute/3 and a metric must be added above.
+      # {LiveBeatsWeb, :count_users, []}
+    ]
+  end
+end

lib/live_beats_web/templates/layout/app.html.heex

@@ -0,0 +1,5 @@
+<main class="container">
+  <p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+  <p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+  <%= @inner_content %>
+</main>

lib/live_beats_web/templates/layout/live.html.heex

@@ -0,0 +1,11 @@
+<main class="container">
+  <p class="alert alert-info" role="alert"
+    phx-click="lv:clear-flash"
+    phx-value-key="info"><%= live_flash(@flash, :info) %></p>
+
+  <p class="alert alert-danger" role="alert"
+    phx-click="lv:clear-flash"
+    phx-value-key="error"><%= live_flash(@flash, :error) %></p>
+
+  <%= @inner_content %>
+</main>

lib/live_beats_web/templates/layout/root.html.heex

@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8"/>
+    <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
+    <%= csrf_meta_tag() %>
+    <%= live_title_tag assigns[:page_title] || "LiveBeats", suffix: " · Phoenix Framework" %>
+    <link phx-track-static rel="stylesheet" href={Routes.static_path(@conn, "/assets/app.css")}/>
+    <script defer phx-track-static type="text/javascript" src={Routes.static_path(@conn, "/assets/app.js")}></script>
+  </head>
+  <body>
+    <header>
+      <section class="container">
+        <nav>
+          <ul>
+            <li><a href="https://hexdocs.pm/phoenix/overview.html">Get Started</a></li>
+            <%= if function_exported?(Routes, :live_dashboard_path, 2) do %>
+              <li><%= link "LiveDashboard", to: Routes.live_dashboard_path(@conn, :home) %></li>
+            <% end %>
+          </ul>
+        </nav>
+        <a href="https://phoenixframework.org/" class="phx-logo">
+          <img src={Routes.static_path(@conn, "/images/phoenix.png")} alt="Phoenix Framework Logo"/>
+        </a>
+      </section>
+    </header>
+    <%= @inner_content %>
+  </body>
+</html>

lib/live_beats_web/templates/page/index.html.heex

@@ -0,0 +1,41 @@
+<section class="phx-hero">
+  <h1><%= gettext "Welcome to %{name}!", name: "Phoenix" %></h1>
+  <p>Peace of mind from prototype to production</p>
+</section>
+
+<section class="row">
+  <article class="column">
+    <h2>Resources</h2>
+    <ul>
+      <li>
+        <a href="https://hexdocs.pm/phoenix/overview.html">Guides &amp; Docs</a>
+      </li>
+      <li>
+        <a href="https://github.com/phoenixframework/phoenix">Source</a>
+      </li>
+      <li>
+        <a href="https://github.com/phoenixframework/phoenix/blob/v1.6/CHANGELOG.md">v1.6 Changelog</a>
+      </li>
+    </ul>
+  </article>
+  <article class="column">
+    <h2>Help</h2>
+    <ul>
+      <li>
+        <a href="https://elixirforum.com/c/phoenix-forum">Forum</a>
+      </li>
+      <li>
+        <a href="https://web.libera.chat/#elixir">#elixir on Libera Chat (IRC)</a>
+      </li>
+      <li>
+        <a href="https://twitter.com/elixirphoenix">Twitter @elixirphoenix</a>
+      </li>
+      <li>
+        <a href="https://elixir-slackin.herokuapp.com/">Elixir on Slack</a>
+      </li>
+      <li>
+        <a href="https://discord.gg/elixir">Elixir on Discord</a>
+      </li>
+    </ul>
+  </article>
+</section>

lib/live_beats_web/views/error_helpers.ex

@@ -0,0 +1,47 @@
+defmodule LiveBeatsWeb.ErrorHelpers do
+  @moduledoc """
+  Conveniences for translating and building error messages.
+  """
+
+  use Phoenix.HTML
+
+  @doc """
+  Generates tag for inlined form input errors.
+  """
+  def error_tag(form, field) do
+    Enum.map(Keyword.get_values(form.errors, field), fn error ->
+      content_tag(:span, translate_error(error),
+        class: "invalid-feedback",
+        phx_feedback_for: input_name(form, field)
+      )
+    end)
+  end
+
+  @doc """
+  Translates an error message using gettext.
+  """
+  def translate_error({msg, opts}) do
+    # When using gettext, we typically pass the strings we want
+    # to translate as a static argument:
+    #
+    #     # Translate "is invalid" in the "errors" domain
+    #     dgettext("errors", "is invalid")
+    #
+    #     # Translate the number of files with plural rules
+    #     dngettext("errors", "1 file", "%{count} files", count)
+    #
+    # Because the error messages we show in our forms and APIs
+    # are defined inside Ecto, we need to translate them dynamically.
+    # This requires us to call the Gettext module passing our gettext
+    # backend as first argument.
+    #
+    # Note we use the "errors" domain, which means translations
+    # should be written to the errors.po file. The :count option is
+    # set by Ecto and indicates we should also apply plural rules.
+    if count = opts[:count] do
+      Gettext.dngettext(LiveBeatsWeb.Gettext, "errors", msg, msg, count, opts)
+    else
+      Gettext.dgettext(LiveBeatsWeb.Gettext, "errors", msg, opts)
+    end
+  end
+end

lib/live_beats_web/views/error_view.ex

@@ -0,0 +1,16 @@
+defmodule LiveBeatsWeb.ErrorView do
+  use LiveBeatsWeb, :view
+
+  # If you want to customize a particular status code
+  # for a certain format, you may uncomment below.
+  # def render("500.html", _assigns) do
+  #   "Internal Server Error"
+  # end
+
+  # By default, Phoenix returns the status message from
+  # the template name. For example, "404.html" becomes
+  # "Not Found".
+  def template_not_found(template, _assigns) do
+    Phoenix.Controller.status_message_from_template(template)
+  end
+end

lib/live_beats_web/views/layout_view.ex

@@ -0,0 +1,7 @@
+defmodule LiveBeatsWeb.LayoutView do
+  use LiveBeatsWeb, :view
+
+  # Phoenix LiveDashboard is available only in development by default,
+  # so we instruct Elixir to not warn if the dashboard route is missing.
+  @compile {:no_warn_undefined, {Routes, :live_dashboard_path, 2}}
+end

lib/live_beats_web/views/page_view.ex

@@ -0,0 +1,3 @@
+defmodule LiveBeatsWeb.PageView do
+  use LiveBeatsWeb, :view
+end

mix.exs

@@ -0,0 +1,74 @@
+defmodule LiveBeats.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :live_beats,
+      version: "0.1.0",
+      elixir: "~> 1.12",
+      elixirc_paths: elixirc_paths(Mix.env()),
+      compilers: [:gettext] ++ Mix.compilers(),
+      start_permanent: Mix.env() == :prod,
+      aliases: aliases(),
+      deps: deps()
+    ]
+  end
+
+  # Configuration for the OTP application.
+  #
+  # Type `mix help compile.app` for more information.
+  def application do
+    [
+      mod: {LiveBeats.Application, []},
+      extra_applications: [:logger, :runtime_tools]
+    ]
+  end
+
+  # Specifies which paths to compile per environment.
+  defp elixirc_paths(:test), do: ["lib", "test/support"]
+  defp elixirc_paths(_), do: ["lib"]
+
+  # Specifies your project dependencies.
+  #
+  # Type `mix help deps` for examples and options.
+  defp deps do
+    [
+      {:phoenix, "~> 1.6.0-rc.0", override: true},
+      {:phoenix_ecto, "~> 4.4"},
+      {:ecto_sql, "~> 3.6"},
+      {:postgrex, ">= 0.0.0"},
+      {:phoenix_html, "~> 3.0"},
+      {:phoenix_live_reload, "~> 1.2", only: :dev},
+      {:phoenix_live_view, "~> 0.16.0"},
+      {:floki, ">= 0.30.0", only: :test},
+      {:phoenix_live_dashboard, "~> 0.5"},
+      {:esbuild, "~> 0.2", runtime: Mix.env() == :dev},
+      {:swoosh, "~> 1.3"},
+      {:telemetry_metrics, "~> 0.6"},
+      {:telemetry_poller, "~> 1.0"},
+      {:gettext, "~> 0.18"},
+      {:jason, "~> 1.2"},
+      {:plug_cowboy, "~> 2.5"}
+    ]
+  end
+
+  # Aliases are shortcuts or tasks specific to the current project.
+  # For example, to install project dependencies and perform other setup tasks, run:
+  #
+  #     $ mix setup
+  #
+  # See the documentation for `Mix` for more info on aliases.
+  defp aliases do
+    [
+      setup: ["deps.get", "ecto.setup", "cmd --cd assets npm install"],
+      "ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
+      "ecto.reset": ["ecto.drop", "ecto.setup"],
+      test: ["ecto.create --quiet", "ecto.migrate --quiet", "test"],
+      "assets.deploy": [
+        "cmd --cd assets npm run deploy",
+        "esbuild default --minify",
+        "phx.digest"
+      ]
+    ]
+  end
+end

mix.lock

@@ -0,0 +1,35 @@
+%{
+  "castore": {:hex, :castore, "0.1.11", "c0665858e0e1c3e8c27178e73dffea699a5b28eb72239a3b2642d208e8594914", [:mix], [], "hexpm", "91b009ba61973b532b84f7c09ce441cba7aa15cb8b006cf06c6f4bba18220081"},
+  "connection": {:hex, :connection, "1.1.0", "ff2a49c4b75b6fb3e674bfc5536451607270aac754ffd1bdfe175abe4a6d7a68", [:mix], [], "hexpm", "722c1eb0a418fbe91ba7bd59a47e28008a189d47e37e0e7bb85585a016b2869c"},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowboy_telemetry": {:hex, :cowboy_telemetry, "0.4.0", "f239f68b588efa7707abce16a84d0d2acf3a0f50571f8bb7f56a15865aae820c", [:rebar3], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de"},
+  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
+  "db_connection": {:hex, :db_connection, "2.4.0", "d04b1b73795dae60cead94189f1b8a51cc9e1f911c234cc23074017c43c031e5", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ad416c21ad9f61b3103d254a71b63696ecadb6a917b36f563921e0de00d7d7c8"},
+  "decimal": {:hex, :decimal, "2.0.0", "a78296e617b0f5dd4c6caf57c714431347912ffb1d0842e998e9792b5642d697", [:mix], [], "hexpm", "34666e9c55dea81013e77d9d87370fe6cb6291d1ef32f46a1600230b1d44f577"},
+  "ecto": {:hex, :ecto, "3.7.1", "a20598862351b29f80f285b21ec5297da1181c0442687f9b8329f0445d228892", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d36e5b39fc479e654cffd4dbe1865d9716e4a9b6311faff799b6f90ab81b8638"},
+  "ecto_sql": {:hex, :ecto_sql, "3.7.0", "2fcaad4ab0c8d76a5afbef078162806adbe709c04160aca58400d5cbbe8eeac6", [:mix], [{:db_connection, "~> 2.2", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.7.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.4.0 or ~> 0.5.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.15.0 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "a26135dfa1d99bf87a928c464cfa25bba6535a4fe761eefa56077a4febc60f70"},
+  "esbuild": {:hex, :esbuild, "0.2.2", "864b8d1cdab8aa3d08f9811af79b54d89d06dc2ec806b22b3e9bf4535579b0d5", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "0742259fded40073eb8583d38d9265b41c269ce29842e2d26b0de69b38324bf0"},
+  "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
+  "floki": {:hex, :floki, "0.31.0", "f05ee8a8e6a3ced4e62beeb2c79a63bc8e12ab98fbaaf6e6a3d9b76b1278e23f", [:mix], [{:html_entities, "~> 0.5.0", [hex: :html_entities, repo: "hexpm", optional: false]}], "hexpm", "b05afa372f5c345a5bf240ac25ea1f0f3d5fcfd7490ac0beeb4a203f9444891e"},
+  "gettext": {:hex, :gettext, "0.18.2", "7df3ea191bb56c0309c00a783334b288d08a879f53a7014341284635850a6e55", [:mix], [], "hexpm", "f9f537b13d4fdd30f3039d33cb80144c3aa1f8d9698e47d7bcbcc8df93b1f5c5"},
+  "html_entities": {:hex, :html_entities, "0.5.2", "9e47e70598da7de2a9ff6af8758399251db6dbb7eebe2b013f2bbd2515895c3c", [:mix], [], "hexpm", "c53ba390403485615623b9531e97696f076ed415e8d8058b1dbaa28181f4fdcc"},
+  "jason": {:hex, :jason, "1.2.2", "ba43e3f2709fd1aa1dce90aaabfd039d000469c05c56f0b8e31978e03fa39052", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "18a228f5f0058ee183f29f9eae0805c6e59d61c3b006760668d8d18ff0d12179"},
+  "mime": {:hex, :mime, "2.0.1", "0de4c81303fe07806ebc2494d5321ce8fb4df106e34dd5f9d787b637ebadc256", [:mix], [], "hexpm", "7a86b920d2aedce5fb6280ac8261ac1a739ae6c1a1ad38f5eadf910063008942"},
+  "phoenix": {:hex, :phoenix, "1.6.0-rc.0", "87dc1bb400588019a878ecf32c2d229c7d7f31a520c574860a059934663ffa70", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.0", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 1.0", [hex: :phoenix_view, repo: "hexpm", optional: false]}, {:plug, "~> 1.10", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.2", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "2a0d344d2a2f654a9300b2b09dbf9c3821762e1364e26fce12d76fcd498b92c0"},
+  "phoenix_ecto": {:hex, :phoenix_ecto, "4.4.0", "0672ed4e4808b3fbed494dded89958e22fb882de47a97634c0b13e7b0b5f7720", [:mix], [{:ecto, "~> 3.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "09864e558ed31ee00bd48fcc1d4fc58ae9678c9e81649075431e69dbabb43cc1"},
+  "phoenix_html": {:hex, :phoenix_html, "3.0.2", "0d71bd7dfa5fad2103142206e25e16accd64f41bcbd0002af3f0da17e530968d", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "d6c6e85d9bef8d52a5a66fcccd15529651f379eaccbf10500343a17f6f814f82"},
+  "phoenix_live_dashboard": {:hex, :phoenix_live_dashboard, "0.5.0", "3282d8646e1bfc1ef1218f508d9fcefd48cf47f9081b7667bd9b281b688a49cf", [:mix], [{:ecto, "~> 3.6.2 or ~> 3.7", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_psql_extras, "~> 0.6", [hex: :ecto_psql_extras, repo: "hexpm", optional: true]}, {:phoenix_live_view, "~> 0.16.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6.0", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "609740be43de94ae0abd2c4300ff0356a6e8a9487bf340e69967643a59fa7ec8"},
+  "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.3.3", "3a53772a6118d5679bf50fc1670505a290e32a1d195df9e069d8c53ab040c054", [:mix], [{:file_system, "~> 0.2.1 or ~> 0.3", [hex: :file_system, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.4", [hex: :phoenix, repo: "hexpm", optional: false]}], "hexpm", "766796676e5f558dbae5d1bdb066849673e956005e3730dfd5affd7a6da4abac"},
+  "phoenix_live_view": {:hex, :phoenix_live_view, "0.16.1", "a17652e936718b6b6b52ef64d4b9860bc30c41b9a491e25f2b49a70604efa436", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix, "~> 1.5.9 or ~> 1.6.0", [hex: :phoenix, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "94bbc572471ad151b756b38dd10acbf91e0bcc132ad8b78240baa0dcf77cea74"},
+  "phoenix_pubsub": {:hex, :phoenix_pubsub, "2.0.0", "a1ae76717bb168cdeb10ec9d92d1480fec99e3080f011402c0a2d68d47395ffb", [:mix], [], "hexpm", "c52d948c4f261577b9c6fa804be91884b381a7f8f18450c5045975435350f771"},
+  "phoenix_view": {:hex, :phoenix_view, "1.0.0", "fea71ecaaed71178b26dd65c401607de5ec22e2e9ef141389c721b3f3d4d8011", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "82be3e2516f5633220246e2e58181282c71640dab7afc04f70ad94253025db0c"},
+  "plug": {:hex, :plug, "1.12.1", "645678c800601d8d9f27ad1aebba1fdb9ce5b2623ddb961a074da0b96c35187d", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d57e799a777bc20494b784966dc5fbda91eb4a09f571f76545b72a634ce0d30b"},
+  "plug_cowboy": {:hex, :plug_cowboy, "2.5.1", "7cc96ff645158a94cf3ec9744464414f02287f832d6847079adfe0b58761cbd0", [:mix], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:cowboy_telemetry, "~> 0.3", [hex: :cowboy_telemetry, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "107d0a5865fa92bcb48e631cc0729ae9ccfa0a9f9a1bd8f01acb513abf1c2d64"},
+  "plug_crypto": {:hex, :plug_crypto, "1.2.2", "05654514ac717ff3a1843204b424477d9e60c143406aa94daf2274fdd280794d", [:mix], [], "hexpm", "87631c7ad914a5a445f0a3809f99b079113ae4ed4b867348dd9eec288cecb6db"},
+  "postgrex": {:hex, :postgrex, "0.15.10", "2809dee1b1d76f7cbabe570b2a9285c2e7b41be60cf792f5f2804a54b838a067", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "1560ca427542f6b213f8e281633ae1a3b31cdbcd84ebd7f50628765b8f6132be"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
+  "swoosh": {:hex, :swoosh, "1.5.0", "2be4cfc1be10f2203d1854c85b18d8c7be0321445a782efd53ef0b2b88f03ce4", [:mix], [{:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:finch, "~> 0.6", [hex: :finch, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "b53891359e3ddca263ece784051243de84c9244c421a0dee1bff1d52fc5ca420"},
+  "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
+  "telemetry_metrics": {:hex, :telemetry_metrics, "0.6.1", "315d9163a1d4660aedc3fee73f33f1d355dcc76c5c3ab3d59e76e3edf80eef1f", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7be9e0871c41732c233be71e4be11b96e56177bf15dde64a8ac9ce72ac9834c6"},
+  "telemetry_poller": {:hex, :telemetry_poller, "1.0.0", "db91bb424e07f2bb6e73926fcafbfcbcb295f0193e0a00e825e589a0a47e8453", [:rebar3], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "b3a24eafd66c3f42da30fc3ca7dda1e9d546c12250a2d60d7b81d264fbec4f6e"},
+}

priv/gettext/en/LC_MESSAGES/errors.po

@@ -0,0 +1,97 @@
+## `msgid`s in this file come from POT (.pot) files.
+##
+## Do not add, change, or remove `msgid`s manually here as
+## they're tied to the ones in the corresponding POT file
+## (with the same domain).
+##
+## Use `mix gettext.extract --merge` or `mix gettext.merge`
+## to merge POT files into PO files.
+msgid ""
+msgstr ""
+"Language: en\n"
+
+## From Ecto.Changeset.cast/4
+msgid "can't be blank"
+msgstr ""
+
+## From Ecto.Changeset.unique_constraint/3
+msgid "has already been taken"
+msgstr ""
+
+## From Ecto.Changeset.put_change/3
+msgid "is invalid"
+msgstr ""
+
+## From Ecto.Changeset.validate_acceptance/3
+msgid "must be accepted"
+msgstr ""
+
+## From Ecto.Changeset.validate_format/3
+msgid "has invalid format"
+msgstr ""
+
+## From Ecto.Changeset.validate_subset/3
+msgid "has an invalid entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_exclusion/3
+msgid "is reserved"
+msgstr ""
+
+## From Ecto.Changeset.validate_confirmation/3
+msgid "does not match confirmation"
+msgstr ""
+
+## From Ecto.Changeset.no_assoc_constraint/3
+msgid "is still associated with this entry"
+msgstr ""
+
+msgid "are still associated with this entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_length/3
+msgid "should be %{count} character(s)"
+msgid_plural "should be %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have %{count} item(s)"
+msgid_plural "should have %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} character(s)"
+msgid_plural "should be at least %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at least %{count} item(s)"
+msgid_plural "should have at least %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} character(s)"
+msgid_plural "should be at most %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at most %{count} item(s)"
+msgid_plural "should have at most %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+## From Ecto.Changeset.validate_number/3
+msgid "must be less than %{number}"
+msgstr ""
+
+msgid "must be greater than %{number}"
+msgstr ""
+
+msgid "must be less than or equal to %{number}"
+msgstr ""
+
+msgid "must be greater than or equal to %{number}"
+msgstr ""
+
+msgid "must be equal to %{number}"
+msgstr ""

priv/gettext/errors.pot

@@ -0,0 +1,95 @@
+## This is a PO Template file.
+##
+## `msgid`s here are often extracted from source code.
+## Add new translations manually only if they're dynamic
+## translations that can't be statically extracted.
+##
+## Run `mix gettext.extract` to bring this file up to
+## date. Leave `msgstr`s empty as changing them here has no
+## effect: edit them in PO (`.po`) files instead.
+
+## From Ecto.Changeset.cast/4
+msgid "can't be blank"
+msgstr ""
+
+## From Ecto.Changeset.unique_constraint/3
+msgid "has already been taken"
+msgstr ""
+
+## From Ecto.Changeset.put_change/3
+msgid "is invalid"
+msgstr ""
+
+## From Ecto.Changeset.validate_acceptance/3
+msgid "must be accepted"
+msgstr ""
+
+## From Ecto.Changeset.validate_format/3
+msgid "has invalid format"
+msgstr ""
+
+## From Ecto.Changeset.validate_subset/3
+msgid "has an invalid entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_exclusion/3
+msgid "is reserved"
+msgstr ""
+
+## From Ecto.Changeset.validate_confirmation/3
+msgid "does not match confirmation"
+msgstr ""
+
+## From Ecto.Changeset.no_assoc_constraint/3
+msgid "is still associated with this entry"
+msgstr ""
+
+msgid "are still associated with this entry"
+msgstr ""
+
+## From Ecto.Changeset.validate_length/3
+msgid "should be %{count} character(s)"
+msgid_plural "should be %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have %{count} item(s)"
+msgid_plural "should have %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at least %{count} character(s)"
+msgid_plural "should be at least %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at least %{count} item(s)"
+msgid_plural "should have at least %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should be at most %{count} character(s)"
+msgid_plural "should be at most %{count} character(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+msgid "should have at most %{count} item(s)"
+msgid_plural "should have at most %{count} item(s)"
+msgstr[0] ""
+msgstr[1] ""
+
+## From Ecto.Changeset.validate_number/3
+msgid "must be less than %{number}"
+msgstr ""
+
+msgid "must be greater than %{number}"
+msgstr ""
+
+msgid "must be less than or equal to %{number}"
+msgstr ""
+
+msgid "must be greater than or equal to %{number}"
+msgstr ""
+
+msgid "must be equal to %{number}"
+msgstr ""

priv/repo/migrations/.formatter.exs

@@ -0,0 +1,4 @@
+[
+  import_deps: [:ecto_sql],
+  inputs: ["*.exs"]
+]

priv/repo/seeds.exs

@@ -0,0 +1,11 @@
+# Script for populating the database. You can run it as:
+#
+#     mix run priv/repo/seeds.exs
+#
+# Inside the script, you can read and write to any of your
+# repositories directly:
+#
+#     LiveBeats.Repo.insert!(%LiveBeats.SomeSchema{})
+#
+# We recommend using the bang functions (`insert!`, `update!`
+# and so on) as they will fail if something goes wrong.

priv/static/robots.txt

@@ -0,0 +1,5 @@
+# See http://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file
+#
+# To ban all spiders from the entire site uncomment the next two lines:
+# User-agent: *
+# Disallow: /

test/live_beats_web/controllers/page_controller_test.exs

@@ -0,0 +1,8 @@
+defmodule LiveBeatsWeb.PageControllerTest do
+  use LiveBeatsWeb.ConnCase
+
+  test "GET /", %{conn: conn} do
+    conn = get(conn, "/")
+    assert html_response(conn, 200) =~ "Welcome to Phoenix!"
+  end
+end

test/live_beats_web/views/error_view_test.exs

@@ -0,0 +1,14 @@
+defmodule LiveBeatsWeb.ErrorViewTest do
+  use LiveBeatsWeb.ConnCase, async: true
+
+  # Bring render/3 and render_to_string/3 for testing custom views
+  import Phoenix.View
+
+  test "renders 404.html" do
+    assert render_to_string(LiveBeatsWeb.ErrorView, "404.html", []) == "Not Found"
+  end
+
+  test "renders 500.html" do
+    assert render_to_string(LiveBeatsWeb.ErrorView, "500.html", []) == "Internal Server Error"
+  end
+end

test/live_beats_web/views/layout_view_test.exs

@@ -0,0 +1,8 @@
+defmodule LiveBeatsWeb.LayoutViewTest do
+  use LiveBeatsWeb.ConnCase, async: true
+
+  # When testing helpers, you may want to import Phoenix.HTML and
+  # use functions such as safe_to_string() to convert the helper
+  # result into an HTML string.
+  # import Phoenix.HTML
+end

test/live_beats_web/views/page_view_test.exs

@@ -0,0 +1,3 @@
+defmodule LiveBeatsWeb.PageViewTest do
+  use LiveBeatsWeb.ConnCase, async: true
+end

test/support/channel_case.ex

@@ -0,0 +1,36 @@
+defmodule LiveBeatsWeb.ChannelCase do
+  @moduledoc """
+  This module defines the test case to be used by
+  channel tests.
+
+  Such tests rely on `Phoenix.ChannelTest` and also
+  import other functionality to make it easier
+  to build common data structures and query the data layer.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use LiveBeatsWeb.ChannelCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      # Import conveniences for testing with channels
+      import Phoenix.ChannelTest
+      import LiveBeatsWeb.ChannelCase
+
+      # The default endpoint for testing
+      @endpoint LiveBeatsWeb.Endpoint
+    end
+  end
+
+  setup tags do
+    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(LiveBeats.Repo, shared: not tags[:async])
+    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    :ok
+  end
+end

test/support/conn_case.ex

@@ -0,0 +1,39 @@
+defmodule LiveBeatsWeb.ConnCase do
+  @moduledoc """
+  This module defines the test case to be used by
+  tests that require setting up a connection.
+
+  Such tests rely on `Phoenix.ConnTest` and also
+  import other functionality to make it easier
+  to build common data structures and query the data layer.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use LiveBeatsWeb.ConnCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      # Import conveniences for testing with connections
+      import Plug.Conn
+      import Phoenix.ConnTest
+      import LiveBeatsWeb.ConnCase
+
+      alias LiveBeatsWeb.Router.Helpers, as: Routes
+
+      # The default endpoint for testing
+      @endpoint LiveBeatsWeb.Endpoint
+    end
+  end
+
+  setup tags do
+    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(LiveBeats.Repo, shared: not tags[:async])
+    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    {:ok, conn: Phoenix.ConnTest.build_conn()}
+  end
+end

test/support/data_case.ex

@@ -0,0 +1,51 @@
+defmodule LiveBeats.DataCase do
+  @moduledoc """
+  This module defines the setup for tests requiring
+  access to the application's data layer.
+
+  You may define functions here to be used as helpers in
+  your tests.
+
+  Finally, if the test case interacts with the database,
+  we enable the SQL sandbox, so changes done to the database
+  are reverted at the end of every test. If you are using
+  PostgreSQL, you can even run database tests asynchronously
+  by setting `use LiveBeats.DataCase, async: true`, although
+  this option is not recommended for other databases.
+  """
+
+  use ExUnit.CaseTemplate
+
+  using do
+    quote do
+      alias LiveBeats.Repo
+
+      import Ecto
+      import Ecto.Changeset
+      import Ecto.Query
+      import LiveBeats.DataCase
+    end
+  end
+
+  setup tags do
+    pid = Ecto.Adapters.SQL.Sandbox.start_owner!(LiveBeats.Repo, shared: not tags[:async])
+    on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    :ok
+  end
+
+  @doc """
+  A helper that transforms changeset errors into a map of messages.
+
+      assert {:error, changeset} = Accounts.create_user(%{password: "short"})
+      assert "password is too short" in errors_on(changeset).password
+      assert %{password: ["password is too short"]} = errors_on(changeset)
+
+  """
+  def errors_on(changeset) do
+    Ecto.Changeset.traverse_errors(changeset, fn {message, opts} ->
+      Regex.replace(~r"%{(\w+)}", message, fn _, key ->
+        opts |> Keyword.get(String.to_existing_atom(key), key) |> to_string()
+      end)
+    end)
+  end
+end

test/test_helper.exs

@@ -0,0 +1,2 @@
+ExUnit.start()
+Ecto.Adapters.SQL.Sandbox.mode(LiveBeats.Repo, :manual)