commit 3b882f27e0b9a44f87a29ad6c6db723bbc6dd4e2 · hauleth.dev/esl_hn

+1 -1

.formatter.exs

···

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       [

     

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         line_length: 80,

     

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         import_deps: [:phoenix],

     

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         import_deps: [:phoenix, :ecto],

     

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         inputs: ["*.{ex,exs}", "{config,lib,test}/**/*.{ex,exs}"]

     

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       ]

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lib/esl_hn/hn.ex

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       defmodule EslHn.Hn do

     

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         alias EslHn.Hn.Story

     

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         # TODO: Is there a way to limit amount of returned entries in query?

     

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         def top_stories_ids(opts \\ []) do

     

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           limit = opts[:limit] || 50

     

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           with {:ok, list} <- get("topstories.json", opts) do

     

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             {:ok, Enum.take(list, limit)}

     

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           end

     

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         end

     

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         def story(id, opts \\ []) do

     

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           with {:ok, body} <- get("item/#{id}.json", opts) do

     

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             Story.changeset(body)

     

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             |> Ecto.Changeset.apply_action(:create)

     

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           end

     

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         end

     

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         def top_stories(opts \\ []) do

     

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           with {:ok, ids} <- top_stories_ids(opts) do

     

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             ids

     

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             |> Task.async_stream(&story/1)

     

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             |> map_while(fn

     

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               {:ok, {:ok, data}} -> {:cont, data}

     

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               other -> {:halt, other}

     

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             end)

     

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             |> case do

     

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               list when is_list(list) -> {:ok, list}

     

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               error -> error

     

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             end

     

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           end

     

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         end

     

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         @base_url URI.new!("https://hacker-news.firebaseio.com/v0/")

     

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         defp get(path, opts) do

     

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           base_url = opts[:base_url] || @base_url

     

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           Req.new(base_url: base_url)

     

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           |> Req.get(url: path)

     

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           |> case do

     

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             {:ok, %Req.Response{status: 200, body: body}} ->

     

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               {:ok, body}

     

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             {:ok, %Req.Response{status: other, body: body}} ->

     

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               {:error, {:http_response, other, body}}

     

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             {:error, _} = error ->

     

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               error

     

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           end

     

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         end

     

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         defp map_while(enumerable, func) do

     

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           f = fn x, acc ->

     

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             case func.(x) do

     

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               {:cont, y} -> {:cont, [y | acc]}

     

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               {:halt, ret} -> {:halt, {:halted, ret}}

     

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             end

     

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           end

     

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           case Enum.reduce_while(enumerable, [], f) do

     

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             {:halted, ret} -> ret

     

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             list when is_list(list) -> Enum.reverse(list)

     

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           end

     

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         end

     

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       end

+54

lib/esl_hn/hn/story.ex

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       defmodule EslHn.Hn.Story do

     

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         use Ecto.Schema

     

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         import Ecto.Changeset

     

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         @primary_key {:id, :integer, []}

     

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         embedded_schema do

     

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           # TODO: Make it `URL` structure

     

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           field :url, :string

     

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           field :title, :string

     

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           field :by, :string

     

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           field :type, Ecto.Enum, values: [:job, :story, :comment, :poll, :pollopt]

     

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           # TODO: Transform it to DateTime

     

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           field :time, :integer

     

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           field :deleted, :boolean

     

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           field :text, :string

     

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           field :dead, :boolean

     

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           field :parent, :integer

     

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           field :kids, {:array, :integer}

     

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           field :score, :integer

     

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           field :descendants, :integer

     

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           # TODO: Check exact structure of this field

     

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           # field :poll, map()

     

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           # field :parts, map()

     

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         end

     

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         def changeset(model \\ %__MODULE__{}, attrs) do

     

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           model

     

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           |> cast(

     

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             attrs,

     

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             [

     

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               :id,

     

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               :url,

     

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               :title,

     

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               :by,

     

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               :type,

     

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               :time,

     

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               :deleted,

     

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               :text,

     

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               :dead,

     

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               :parent,

     

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               :kids,

     

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               :score,

     

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               :descendants

     

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             ],

     

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             empty_values: []

     

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           )

     

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         end

     

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       end

+14 -1

mix.exs

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         defp deps do

     

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           [

     

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             {:phoenix, "~> 1.7.21"},

     

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             {:bandit, "~> 1.5"},

     

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             # HackerNews client

     

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             {:req, "~> 0.5.15"},

     

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             {:ecto, "~> 3.13"},

     

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             # Monitoring

     

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             {:phoenix_live_dashboard, "~> 0.8.3"},

     

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             {:telemetry_metrics, "~> 1.0"},

     

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             {:telemetry_poller, "~> 1.0"},

     

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             {:bandit, "~> 1.5"}

     

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             # Linting

     

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             {:credo, ">= 0.0.0", only: [:dev]},

     

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             # Testing

     

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             {:test_server, "~> 0.1.21", only: [:test]},

     

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             {:repatch, "~> 1.6", only: [:test]}

     

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           ]

     

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         end

     

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+14 -1

mix.lock

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       %{

     

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         "bandit": {:hex, :bandit, "1.7.0", "d1564f30553c97d3e25f9623144bb8df11f3787a26733f00b21699a128105c0c", [:mix], [{:hpax, "~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.18", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "3e2f7a98c7a11f48d9d8c037f7177cd39778e74d55c7af06fe6227c742a8168a"},

     

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         "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},

     

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         "castore": {:hex, :castore, "1.0.14", "4582dd7d630b48cf5e1ca8d3d42494db51e406b7ba704e81fbd401866366896a", [:mix], [], "hexpm", "7bc1b65249d31701393edaaac18ec8398d8974d52c647b7904d01b964137b9f4"},

     

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         "dns_cluster": {:hex, :dns_cluster, "0.1.3", "0bc20a2c88ed6cc494f2964075c359f8c2d00e1bf25518a6a6c7fd277c9b0c66", [:mix], [], "hexpm", "46cb7c4a1b3e52c7ad4cbe33ca5079fbde4840dedeafca2baf77996c2da1bc33"},

     

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         "credo": {:hex, :credo, "1.7.12", "9e3c20463de4b5f3f23721527fcaf16722ec815e70ff6c60b86412c695d426c1", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "8493d45c656c5427d9c729235b99d498bd133421f3e0a683e5c1b561471291e5"},

     

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         "decimal": {:hex, :decimal, "2.3.0", "3ad6255aa77b4a3c4f818171b12d237500e63525c2fd056699967a3e7ea20f62", [:mix], [], "hexpm", "a4d66355cb29cb47c3cf30e71329e58361cfcb37c34235ef3bf1d7bf3773aeac"},

     

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         "ecto": {:hex, :ecto, "3.13.2", "7d0c0863f3fc8d71d17fc3ad3b9424beae13f02712ad84191a826c7169484f01", [:mix], [{:decimal, "~> 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", "669d9291370513ff56e7b7e7081b7af3283d02e046cf3d403053c557894a0b3e"},

     

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         "ex2ms": {:hex, :ex2ms, "1.7.0", "45b9f523d0b777667ded60070d82d871a37e294f0b6c5b8eca86771f00f82ee1", [:mix], [], "hexpm", "2589eee51f81f1b1caa6d08c990b1ad409215fe6f64c73f73c67d36ed10be827"},

     

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         "file_system": {:hex, :file_system, "1.1.0", "08d232062284546c6c34426997dd7ef6ec9f8bbd090eb91780283c9016840e8f", [:mix], [], "hexpm", "bfcf81244f416871f2a2e15c1b515287faa5db9c6bcf290222206d120b3d43f6"},

     

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         "finch": {:hex, :finch, "0.20.0", "5330aefb6b010f424dcbbc4615d914e9e3deae40095e73ab0c1bb0968933cadf", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.6.2 or ~> 1.7", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 1.1", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "2658131a74d051aabfcba936093c903b8e89da9a1b63e430bee62045fa9b2ee2"},

     

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         "hpax": {:hex, :hpax, "1.0.3", "ed67ef51ad4df91e75cc6a1494f851850c0bd98ebc0be6e81b026e765ee535aa", [:mix], [], "hexpm", "8eab6e1cfa8d5918c2ce4ba43588e894af35dbd8e91e6e55c817bca5847df34a"},

     

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         "jason": {:hex, :jason, "1.4.4", "b9226785a9aa77b6857ca22832cffa5d5011a667207eb2a0ad56adb5db443b8a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "c5eb0cab91f094599f94d55bc63409236a8ec69a21a67814529e8d5f6cc90b3b"},

     

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         "mime": {:hex, :mime, "2.0.7", "b8d739037be7cd402aee1ba0306edfdef982687ee7e9859bee6198c1e7e2f128", [:mix], [], "hexpm", "6171188e399ee16023ffc5b76ce445eb6d9672e2e241d2df6050f3c771e80ccd"},

     

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         "mint": {:hex, :mint, "1.7.1", "113fdb2b2f3b59e47c7955971854641c61f378549d73e829e1768de90fc1abf1", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "fceba0a4d0f24301ddee3024ae116df1c3f4bb7a563a731f45fdfeb9d39a231b"},

     

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         "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},

     

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         "nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},

     

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         "phoenix": {:hex, :phoenix, "1.7.21", "14ca4f1071a5f65121217d6b57ac5712d1857e40a0833aff7a691b7870fc9a3b", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 2.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.7", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:plug_crypto, "~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:websock_adapter, "~> 0.5.3", [hex: :websock_adapter, repo: "hexpm", optional: false]}], "hexpm", "336dce4f86cba56fed312a7d280bf2282c720abb6074bdb1b61ec8095bdd0bc9"},

     

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         "phoenix_html": {:hex, :phoenix_html, "4.2.1", "35279e2a39140068fc03f8874408d58eef734e488fc142153f055c5454fd1c08", [:mix], [], "hexpm", "cff108100ae2715dd959ae8f2a8cef8e20b593f8dfd031c9cba92702cf23e053"},

     

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         "phoenix_live_dashboard": {:hex, :phoenix_live_dashboard, "0.8.7", "405880012cb4b706f26dd1c6349125bfc903fb9e44d1ea668adaf4e04d4884b7", [:mix], [{:ecto, "~> 3.6.2 or ~> 3.7", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_mysql_extras, "~> 0.5", [hex: :ecto_mysql_extras, repo: "hexpm", optional: true]}, {:ecto_psql_extras, "~> 0.7", [hex: :ecto_psql_extras, repo: "hexpm", optional: true]}, {:ecto_sqlite3_extras, "~> 1.1.7 or ~> 1.2.0", [hex: :ecto_sqlite3_extras, repo: "hexpm", optional: true]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.19 or ~> 1.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6 or ~> 1.0", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "3a8625cab39ec261d48a13b7468dc619c0ede099601b084e343968309bd4d7d7"},

     
···

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         "phoenix_template": {:hex, :phoenix_template, "1.0.4", "e2092c132f3b5e5b2d49c96695342eb36d0ed514c5b252a77048d5969330d639", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "2c0c81f0e5c6753faf5cca2f229c9709919aba34fab866d3bc05060c9c444206"},

     

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         "plug": {:hex, :plug, "1.18.1", "5067f26f7745b7e31bc3368bc1a2b818b9779faa959b49c934c17730efc911cf", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "57a57db70df2b422b564437d2d33cf8d33cd16339c1edb190cd11b1a3a546cc2"},

     

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         "plug_crypto": {:hex, :plug_crypto, "2.1.1", "19bda8184399cb24afa10be734f84a16ea0a2bc65054e23a62bb10f06bc89491", [:mix], [], "hexpm", "6470bce6ffe41c8bd497612ffde1a7e4af67f36a15eea5f921af71cf3e11247c"},

     

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         "repatch": {:hex, :repatch, "1.6.0", "9d5d2f97b66179dc596e9e8984d46c1de34d4d1e6b9af0b5c188e68e8f270445", [:mix], [{:ex2ms, "~> 1.7.0", [hex: :ex2ms, repo: "hexpm", optional: false]}], "hexpm", "6e89e75c5b120b52fa01892bf603e43f1213f5fd6604e60b7ba4efbf3c48d3b4"},

     

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       +
         "req": {:hex, :req, "0.5.15", "662020efb6ea60b9f0e0fac9be88cd7558b53fe51155a2d9899de594f9906ba9", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "a6513a35fad65467893ced9785457e91693352c70b58bbc045b47e5eb2ef0c53"},

     

       16
       27
        
         "telemetry": {:hex, :telemetry, "1.3.0", "fedebbae410d715cf8e7062c96a1ef32ec22e764197f70cda73d82778d61e7a2", [:rebar3], [], "hexpm", "7015fc8919dbe63764f4b4b87a95b7c0996bd539e0d499be6ec9d7f3875b79e6"},

     

       17
       28
        
         "telemetry_metrics": {:hex, :telemetry_metrics, "1.1.0", "5bd5f3b5637e0abea0426b947e3ce5dd304f8b3bc6617039e2b5a008adc02f8f", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e7b79e8ddfde70adb6db8a6623d1778ec66401f366e9a8f5dd0955c56bc8ce67"},

     

       18
       29
        
         "telemetry_poller": {:hex, :telemetry_poller, "1.3.0", "d5c46420126b5ac2d72bc6580fb4f537d35e851cc0f8dbd571acf6d6e10f5ec7", [:rebar3], [{:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "51f18bed7128544a50f75897db9974436ea9bfba560420b646af27a9a9b35211"},

     

       30
       30
       +
         "test_server": {:hex, :test_server, "0.1.21", "a22e3f5bc30278c4b9bf53f6721dc951e18e6e10ce5505481dc36ba774fc944c", [:mix], [{:bandit, ">= 1.4.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, ">= 2.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:x509, "~> 0.6", [hex: :x509, repo: "hexpm", optional: false]}], "hexpm", "3b704bd0bbba389106ca3331a4a75d5e6f6142f4dc4cb20d91f960b932bf0523"},

     

       19
       31
        
         "thousand_island": {:hex, :thousand_island, "1.3.14", "ad45ebed2577b5437582bcc79c5eccd1e2a8c326abf6a3464ab6c06e2055a34a", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d0d24a929d31cdd1d7903a4fe7f2409afeedff092d277be604966cd6aa4307ef"},

     

       20
       32
        
         "websock": {:hex, :websock, "0.5.3", "2f69a6ebe810328555b6fe5c831a851f485e303a7c8ce6c5f675abeb20ebdadc", [:mix], [], "hexpm", "6105453d7fac22c712ad66fab1d45abdf049868f253cf719b625151460b8b453"},

     

       21
       33
        
         "websock_adapter": {:hex, :websock_adapter, "0.5.8", "3b97dc94e407e2d1fc666b2fb9acf6be81a1798a2602294aac000260a7c4a47d", [:mix], [{:bandit, ">= 0.6.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.6", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "315b9a1865552212b5f35140ad194e67ce31af45bcee443d4ecb96b5fd3f3782"},

     

       34
       34
       +
         "x509": {:hex, :x509, "0.9.2", "a75aa605348abd905990f3d2dc1b155fcde4e030fa2f90c4a91534405dce0f6e", [:mix], [], "hexpm", "4c5ede75697e565d4b0f5be04c3b71bb1fd3a090ea243af4bd7dae144e48cfc7"},

     

       22
       35
        
       }

+39

test/esl_hn/hn_test.exs

···

       1
       1
       +
       defmodule EslHn.HnTest do

     

       2
       2
       +
         use ExUnit.Case, async: false

     

       3
       3
       +
       

     

       4
       4
       +
         alias Plug.Conn

     

       5
       5
       +
       

     

       6
       6
       +
         @subject EslHn.Hn

     

       7
       7
       +
       

     

       8
       8
       +
         doctest @subject

     

       9
       9
       +
       

     

       10
       10
       +
         describe "top_stories_ids/1" do

     

       11
       11
       +
           test "on success returns list of IDs" do

     

       12
       12
       +
             list = [1, 2, 3, 4]

     

       13
       13
       +
       

     

       14
       14
       +
             TestServer.add("/topstories.json",

     

       15
       15
       +
               to: fn conn ->

     

       16
       16
       +
                 Conn.send_resp(conn, 200, JSON.encode!(list))

     

       17
       17
       +
               end

     

       18
       18
       +
             )

     

       19
       19
       +
       

     

       20
       20
       +
             assert {:ok, list} == @subject.top_stories_ids(base_url: TestServer.url())

     

       21
       21
       +
           end

     

       22
       22
       +
       

     

       23
       23
       +
           test "returns error on non 200 response" do

     

       24
       24
       +
             list = [1, 2, 3, 4]

     

       25
       25
       +
       

     

       26
       26
       +
             TestServer.add("/topstories.json",

     

       27
       27
       +
               to: fn conn ->

     

       28
       28
       +
                 Conn.send_resp(conn, :im_a_teapot, JSON.encode!(list))

     

       29
       29
       +
               end

     

       30
       30
       +
             )

     

       31
       31
       +
       

     

       32
       32
       +
             assert {:error, {:http_response, 418, _}} =

     

       33
       33
       +
                      @subject.top_stories_ids(base_url: TestServer.url())

     

       34
       34
       +
           end

     

       35
       35
       +
         end

     

       36
       36
       +
       

     

       37
       37
       +
         describe "story/2" do

     

       38
       38
       +
         end

     

       39
       39
       +
       end