Merge pull request #4 from prasadsunny1/master

Migrate to null safety

Author: jakelumetta

lib/src/butter.dart

@@ -9,12 +9,12 @@ class Butter {
   /// The API token for Butter user
   final String _apiKey;
 
-  Pages page;
-  Content content;
-  Posts post;
-  Authors author;
-  Categories category;
-  Tags tag;
+  Pages? page;
+  Content? content;
+  Posts? post;
+  Authors? author;
+  Categories? category;
+  Tags? tag;
 
   Butter(this._apiKey) {
     if (_apiKey == "") {

lib/src/files/authors.dart

@@ -10,7 +10,7 @@ class Authors {
   /// Retrieves a single author using slug
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> retrieve([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;
@@ -22,7 +22,7 @@ class Authors {
   /// Lists all authors
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> list([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;

lib/src/files/categories.dart

@@ -10,7 +10,7 @@ class Categories {
   /// Retrieves a single category using slug
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> retrieve([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;
@@ -22,7 +22,7 @@ class Categories {
   /// Lists all categories
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> list([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;

lib/src/files/content.dart

@@ -12,7 +12,7 @@ class Content {
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> retrieve(
     List<String> keys, [
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;

lib/src/files/pages.dart

@@ -14,7 +14,7 @@ class Pages {
   Future<Response> retrieve(
     String pageType,
     String pageSlug, [
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;
@@ -30,7 +30,7 @@ class Pages {
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> list(
     String pageType, [
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;

lib/src/files/posts.dart

@@ -11,7 +11,7 @@ class Posts {
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> retrieve(
     String slug, [
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null) {
       params["auth_token"] = _apiKey;
@@ -25,7 +25,7 @@ class Posts {
   /// Lists multiple posts according to page size
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> list([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;
@@ -39,7 +39,7 @@ class Posts {
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> search(
     String query, [
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null) {
       params["auth_token"] = _apiKey;

lib/src/files/tags.dart

@@ -10,7 +10,7 @@ class Tags {
   /// Retrieves a single page from Pages
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> retrieve([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;
@@ -22,7 +22,7 @@ class Tags {
   /// Retrieves multiple pages from a pageType of Pages
   /// [params] is a Map used to add additional parameters to the query
   Future<Response> list([
-    Map<String, String> params,
+    Map<String, String>? params,
   ]) {
     if (params != null)
       params["auth_token"] = _apiKey;