Remove unused import warnings

Author: AndrewDryga

lib/logger_json/formatters/basic.ex

@@ -15,6 +15,7 @@ defmodule LoggerJSON.Formatters.Basic do
       }
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, RedactorEncoder}
+  require Jason.Helpers
 
   @behaviour LoggerJSON.Formatter
 
@@ -71,19 +72,17 @@ defmodule LoggerJSON.Formatters.Basic do
   end
 
   if Code.ensure_loaded?(Plug.Conn) do
-    import Jason.Helpers, only: [json_map: 1]
-
     defp format_http_request(%{conn: %Plug.Conn{} = conn}) do
-      json_map(
+      Jason.Helpers.json_map(
         connection:
-          json_map(
+          Jason.Helpers.json_map(
             protocol: Plug.Conn.get_http_protocol(conn),
             method: conn.method,
             path: conn.request_path,
             status: conn.status
           ),
         client:
-          json_map(
+          Jason.Helpers.json_map(
             user_agent: LoggerJSON.Formatter.Plug.get_header(conn, "user-agent"),
             ip: LoggerJSON.Formatter.Plug.remote_ip(conn)
           )

lib/logger_json/formatters/datadog.ex

@@ -42,6 +42,7 @@ defmodule LoggerJSON.Formatters.Datadog do
       }
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, Code, RedactorEncoder}
+  require Jason.Helpers
 
   @behaviour LoggerJSON.Formatter
 
@@ -194,8 +195,6 @@ defmodule LoggerJSON.Formatters.Datadog do
   defp safe_chardata_to_string(other), do: other
 
   if Code.ensure_loaded?(Plug.Conn) do
-    import Jason.Helpers, only: [json_map: 1]
-
     defp format_http_request(%{conn: %Plug.Conn{} = conn} = meta) do
       request_url = Plug.Conn.request_url(conn)
       user_agent = LoggerJSON.Formatter.Plug.get_header(conn, "user-agent")
@@ -204,23 +203,23 @@ defmodule LoggerJSON.Formatters.Datadog do
 
       %{
         http:
-          json_map(
+          Jason.Helpers.json_map(
             url: request_url,
             status_code: conn.status,
             method: conn.method,
             referer: referer,
             request_id: meta[:request_id],
             useragent: user_agent,
             url_details:
-              json_map(
+              Jason.Helpers.json_map(
                 host: conn.host,
                 port: conn.port,
                 path: conn.request_path,
                 queryString: conn.query_string,
                 scheme: conn.scheme
               )
           ),
-        network: json_map(client: json_map(ip: remote_ip))
+        network: Jason.Helpers.json_map(client: Jason.Helpers.json_map(ip: remote_ip))
       }
     end
   end

lib/logger_json/formatters/elastic.ex

@@ -97,6 +97,7 @@ defmodule LoggerJSON.Formatters.Elastic do
   ```
   """
   import LoggerJSON.Formatter.{MapBuilder, DateTime, Message, Metadata, RedactorEncoder}
+  require Jason.Helpers
 
   @behaviour LoggerJSON.Formatter
 
@@ -222,15 +223,13 @@ defmodule LoggerJSON.Formatters.Elastic do
   defp format_logger_fields(_meta), do: nil
 
   if Code.ensure_loaded?(Plug.Conn) do
-    import Jason.Helpers, only: [json_map: 1]
-
     # See the formats for the following fields in ECS:
     # - client.ip: https://www.elastic.co/guide/en/ecs/8.11/ecs-client.html
     # - http.*: https://www.elastic.co/guide/en/ecs/8.11/ecs-http.html
     # - url.path: https://www.elastic.co/guide/en/ecs/8.11/ecs-url.html
     # - user_agent.original: https://www.elastic.co/guide/en/ecs/8.11/ecs-user_agent.html
     defp format_http_request(%{conn: %Plug.Conn{} = conn}) do
-      json_map(
+      Jason.Helpers.json_map(
         "client.ip": LoggerJSON.Formatter.Plug.remote_ip(conn),
         "http.version": Plug.Conn.get_http_protocol(conn),
         "http.request.method": conn.method,