init commit

lib/provider_service/s3.ex

@@ -0,0 +1,38 @@
+defmodule ProviderService.S3 do
+  @bucket Application.compile_env(:provider_service, :s3_bucket, "policy-bucket")
+
+  def presigned_upload_url(s3_key) do
+    {:ok, url} =
+      ExAws.Config.new(:s3)
+      |> ExAws.S3.presigned_url(:put, @bucket, s3_key,
+        expires_in: 900,
+        query_params: [{"Content-Type", "application/pdf"}]
+      )
+
+    url
+  end
+
+  def presigned_download_url(s3_key) do
+    {:ok, url} =
+      ExAws.Config.new(:s3)
+      |> ExAws.S3.presigned_url(:get, @bucket, s3_key, expires_in: 3600)
+
+    url
+  end
+
+  def delete(s3_key) do
+    ExAws.S3.delete_object(@bucket, s3_key)
+    |> ExAws.request()
+  end
+
+  def upload(local_path, s3_key) do
+    local_path
+    |> File.read!()
+    |> then(&ExAws.S3.put_object(@bucket, s3_key, &1, content_type: "application/pdf"))
+    |> ExAws.request()
+    |> case do
+      {:ok, _} -> :ok
+      {:error, e} -> {:error, inspect(e)}
+    end
+  end
+end