wrap require in a macro

lib/logger_json/formatter.ex

@@ -25,4 +25,12 @@ defmodule LoggerJSON.Formatter do
   @doc false
   @spec encoder_protocol :: module()
   def encoder_protocol, do: @encoder_protocol
+
+  @doc false
+  @spec require_jason_helpers :: Macro.t()
+  defmacro require_jason_helpers do
+    quote do
+      require Jason.Helpers
+    end
+  end
 end

lib/logger_json/formatters/basic.ex

@@ -15,7 +15,7 @@ defmodule LoggerJSON.Formatters.Basic do
       }
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, RedactorEncoder}
-  alias LoggerJSON.Formatter
+  require LoggerJSON.Formatter, as: Formatter
 
   @behaviour Formatter
 
@@ -76,8 +76,8 @@ defmodule LoggerJSON.Formatters.Basic do
   end
 
   if Code.ensure_loaded?(Plug.Conn) do
-    if @encoder == Jason and Code.ensure_loaded?(Jason) do
-      require Jason.Helpers
+    if @encoder == Jason do
+      Formatter.require_jason_helpers()
 
       defp format_http_request(%{conn: %Plug.Conn{} = conn}) do
         Jason.Helpers.json_map(

lib/logger_json/formatters/datadog.ex

@@ -42,7 +42,7 @@ defmodule LoggerJSON.Formatters.Datadog do
       }
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, Code, RedactorEncoder}
-  alias LoggerJSON.Formatter
+  require LoggerJSON.Formatter, as: Formatter
 
   @behaviour Formatter
 
@@ -211,8 +211,8 @@ defmodule LoggerJSON.Formatters.Datadog do
   defp format_http_request(_meta), do: nil
 
   if Code.ensure_loaded?(Plug.Conn) do
-    if @encoder == Jason and Code.ensure_loaded?(Jason) do
-      require Jason.Helpers
+    if @encoder == Jason do
+      Formatter.require_jason_helpers()
 
       defp build_http_request_data(%Plug.Conn{} = conn, request_id) do
         request_url = Plug.Conn.request_url(conn)

lib/logger_json/formatters/google_cloud.ex

@@ -89,7 +89,7 @@ defmodule LoggerJSON.Formatters.GoogleCloud do
       }
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, Code, RedactorEncoder}
-  alias LoggerJSON.Formatter
+  require LoggerJSON.Formatter, as: Formatter
 
   @behaviour Formatter
 
@@ -243,8 +243,8 @@ defmodule LoggerJSON.Formatters.GoogleCloud do
   defp format_crash_report_location(_meta), do: nil
 
   if Code.ensure_loaded?(Plug.Conn) do
-    if @encoder == Jason and Code.ensure_loaded?(Jason) do
-      require Jason.Helpers
+    if @encoder == Jason do
+      Formatter.require_jason_helpers()
 
       defp format_http_request(%{conn: %Plug.Conn{} = conn} = assigns) do
         request_method = conn.method |> to_string() |> String.upcase()
@@ -352,8 +352,8 @@ defmodule LoggerJSON.Formatters.GoogleCloud do
   # coveralls-ignore-stop
 
   # https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry#LogEntryOperation
-  if @encoder == Jason and Code.ensure_loaded?(Jason) do
-    require Jason.Helpers
+  if @encoder == Jason do
+    Formatter.require_jason_helpers()
 
     defp format_operation(%{request_id: request_id, pid: pid}),
       do: Jason.Helpers.json_map(id: request_id, producer: inspect(pid))
@@ -369,8 +369,8 @@ defmodule LoggerJSON.Formatters.GoogleCloud do
   defp format_operation(_meta), do: nil
 
   # https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry#LogEntrySourceLocation
-  if @encoder == Jason and Code.ensure_loaded?(Jason) do
-    require Jason.Helpers
+  if @encoder == Jason do
+    Formatter.require_jason_helpers()
 
     defp format_source_location(%{file: file, line: line, mfa: {m, f, a}}) do
       Jason.Helpers.json_map(