Initial commit

lib/ex_data_gov_u_a/fetchers/base.ex

@@ -0,0 +1,8 @@
+defmodule ExDataGovUA.Fetchers.Base do
+  @type data :: map()
+  @type status :: Atom.t()
+  @type url :: String.t()
+  @type method :: Atom.t()
+
+  @callback fetch(method, url) :: {status, data}
+end

lib/ex_data_gov_u_a/fetchers/finch_fetcher.ex

@@ -0,0 +1,19 @@
+defmodule ExDataGovUA.Fetchers.FinchFetcher do
+  @behaviour ExDataGovUA.Fetchers.Base
+
+  @impl true
+  def fetch(method, url) do
+    start()
+    with request <- Finch.build(method, url),
+         {:ok, %Finch.Response{body: body}} <- Finch.request(request, MyFinchFetcher) do
+      {:ok, body}
+    end
+  end
+
+  defp start() do
+    case Finch.start_link(name: MyFinchFetcher) do
+      {:ok, pid} -> pid
+      {:error, {:already_started, pid}} -> pid
+    end
+  end
+end