Things you could do with Mix, but probably shouldn't
Elixir's build tool Mix can be used for a lot more things than most people think of. In this talk I explore some of the things you could do with Mix...
result = __MODULE__.get!("filter.php?i=#{ingredient}").body result["drinks"] end def process_url(url) do "https://www.thecocktaildb.com/api/json/v1/1/" <> url end def process_response_body(body) do body |> Poison.decode!() end end
""" use Mix.Task alias MixHelp.Api.Cocktails def run(argv) do HTTPoison.start() Cocktails.find_by_ingredient(argv) |> Enum.map(fn(x) -> x["strDrink"] end) |> Enum.join("\n") |> IO.puts end end
mix task """ use Mix.Task alias Mix.Shell.IO def run(_argv) do IO.info "Let's create a new mix task!" taskname = IO.prompt("What should we call this new task?") description = IO.prompt("PLease describe what your task does.") modulename = (String.trim(taskname) |> String.capitalize) …
use Mix.Task alias Mix.Shell.IO def run(_argv) do IO.info \“”” Nothing implemented yet…\nAdd your implementation in lib/mix/tasks/#{taskname}.ex \“”” end end )
to enjoy a nice beer! """ use Mix.Task def run(_argv) do IO.info "Nothing implemented yet... Add your implementation in lib/mix/tasks/neighbeerhood.ex" end end
API endpoint """ use Mix.Task alias Mix.Shell.IO def run(_argv) do IO.info "Great! Let's create a new API endpoint." api_module = IO.prompt("Please provide the module name to use for this new API:") answer = IO.yes? "You have entered #{api_module}. Is that correct?" base_url = IO.prompt("Please provide the base_url for the api endpoint: ") case answer do false -> IO.info "You have entered no!" exit(:normal) _ -> "" end filename = (String.trim(api_module) |> String.downcase)
API endpoint """ use Mix.Task alias Mix.Shell.IO def run(_argv) do IO.info "Great! Let's create a new API endpoint." api_module = IO.prompt("Please provide the module name to use for this new API:") answer = IO.yes? "You have entered #{api_module}. Is that correct?" base_url = IO.prompt("Please provide the base_url for the api endpoint: ") case answer do false -> IO.info "You have entered no!" exit(:normal) _ -> "" end filename = (String.trim(api_module) |> String.downcase) Mix.Generator.create_file( "lib/api/#{filename}.ex", """ defmodule MixHelp.Api.#{String.trim(api_module)} do @moduledoc false use HTTPoison.Base def process_url(url) do "#{String.trim(base_url)}" <> url end def process_response_body(body) do body |> Poison.decode!() end end """) end
query_string = URI.encode(city) __MODULE__.get!("#{query_string}&s=json").body end def process_url(url) do "http://beermapping.com/webservice/loccity/#{api_key}/" <> url end def process_response_body(body) do body |> Poison.decode!() end defp api_key do Application.get_env(:mix_help, :beermapping_api_key) end end
query_string = URI.encode(city) __MODULE__.get!("#{query_string}&s=json").body end def process_url(url) do "http://beermapping.com/webservice/loccity/#{api_key}/" <> url end def process_response_body(body) do body |> Poison.decode!() end defp api_key do Application.get_env(:mix_help, :beermapping_api_key) end end
to enjoy a nice beer! """ use Mix.Task def run(_argv) do IO.info "Nothing implemented yet... Add your implementation in lib/mix/tasks/neighbeerhood.ex" end end
to enjoy a nice beer! """ use Mix.Task alias MixHelp.Api.Beermapping def run(argv) do HTTPoison.start() beerdata = Beermapping.find_by_city(argv) |> Enum.map(fn(x) -> "#{x["name"]} -#{x["status"]} => #{x["reviewlink"]}" end) |> Enum.join("\n") |> IO.puts end end
any() def get_random_track(artist) do query_string = URI.encode_query(%{q: artist, type: "artist"}) result = __MODULE__.get!("search?#{query_string}").body["artists"]["items"] case result do [] -> nil _ -> result |> List.first |> Map.get("id") |> get_top_tracks |> Enum.random end end @spec get_top_tracks(any()) :: any() def get_top_tracks(artist_id) do __MODULE__.get!("artists/#{artist_id}/top-tracks?country=NL").body["tracks"] end def process_url(url) do "https://api.spotify.com/v1/" <> url end def process_response_body(body) do body |> Poison.decode!() end
any() def get_random_track(artist) do query_string = URI.encode_query(%{q: artist, type: "artist"}) result = __MODULE__.get!("search?#{query_string}").body["artists"]["items"] case result do [] -> nil _ -> result |> List.first |> Map.get("id") |> get_top_tracks |> Enum.random end end @spec get_top_tracks(any()) :: any() def get_top_tracks(artist_id) do __MODULE__.get!("artists/#{artist_id}/top-tracks?country=NL").body["tracks"] end def process_url(url) do "https://api.spotify.com/v1/" <> url end def process_response_body(body) do body |> Poison.decode!() end
any() def get_random_track(artist) do query_string = URI.encode_query(%{q: artist, type: "artist"}) result = __MODULE__.get!("search?#{query_string}").body["artists"]["items"] case result do [] -> nil _ -> result |> List.first |> Map.get("id") |> get_top_tracks |> Enum.random end end @spec get_top_tracks(any()) :: any() def get_top_tracks(artist_id) do __MODULE__.get!("artists/#{artist_id}/top-tracks?country=NL").body["tracks"] end def process_url(url) do "https://api.spotify.com/v1/" <> url end def process_response_body(body) do body |> Poison.decode!() end
query_string = URI.encode_query(%{q: artist, type: "artist"}) result = __MODULE__.get!("search?#{query_string}").body["artists"]["items"] case result do [] -> nil _ -> result |> List.first |> Map.get("id") |> get_top_tracks |> Enum.random end end def get_top_tracks(artist_id) do __MODULE__.get!("artists/#{artist_id}/top-tracks?country=NL").body["tracks"] end def process_url(url) do "https://api.spotify.com/v1/" <> url end def process_response_body(body) do body |> Poison.decode!() end
""" alias Spotiplay.Api.Spotify def main(argv \\ []) do artist = Enum.join(argv, " ") IO.puts("Let me find some music by #{artist}") HTTPoison.start() artist |> Spotify.get_random_track() |> play_track end … defp play_track(track) do case track["preview_url"] do nil -> play_track(nil) _ -> System.cmd("curl", ["-o", "file.mp3", track["preview_url"]], stderr_to_stdout: true) IO.puts("Ok, playing #{track["name"]} by #{artist(track)}") System.cmd("mplayer", ["file.mp3"], stderr_to_stdout: true) File.rm("file.mp3") end end … …
• are creating tooling to use in mix projects • are creating a global tool that doesn’t need any dependencies(ie. mix new, mix phx.new) Use an escript when: • You need external dependencies • The task is not specifically related to mix projects
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