fix null parsing issue in request body

Author: ChiragAgg5k

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Change Log
 
+## 20.3.1
+
+* Fix passing of `null` values and stripping only non-nullable optional parameters from the request body
+
 ## 20.3.0
 
 * Add `total` parameter to list queries allowing skipping counting rows in a table for improved performance

docs/examples/avatars/get-screenshot.md

@@ -0,0 +1,65 @@
+import 'package:appwrite/appwrite.dart';
+
+Client client = Client()
+    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1') // Your API Endpoint
+    .setProject('<YOUR_PROJECT_ID>'); // Your project ID
+
+Avatars avatars = Avatars(client);
+
+// Downloading file
+UInt8List bytes = await avatars.getScreenshot(
+    url: 'https://example.com',
+    headers: {}, // optional
+    viewportWidth: 1, // optional
+    viewportHeight: 1, // optional
+    scale: 0.1, // optional
+    theme: .light, // optional
+    userAgent: '<USER_AGENT>', // optional
+    fullpage: false, // optional
+    locale: '<LOCALE>', // optional
+    timezone: .africaAbidjan, // optional
+    latitude: -90, // optional
+    longitude: -180, // optional
+    accuracy: 0, // optional
+    touch: false, // optional
+    permissions: [], // optional
+    sleep: 0, // optional
+    width: 0, // optional
+    height: 0, // optional
+    quality: -1, // optional
+    output: .jpg, // optional
+)
+
+final file = File('path_to_file/filename.ext');
+file.writeAsBytesSync(bytes);
+
+// Displaying image preview
+FutureBuilder(
+    future: avatars.getScreenshot(
+    url:'https://example.com' ,
+    headers:{} , // optional
+    viewportWidth:1 , // optional
+    viewportHeight:1 , // optional
+    scale:0.1 , // optional
+    theme: .light, // optional
+    userAgent:'<USER_AGENT>' , // optional
+    fullpage:false , // optional
+    locale:'<LOCALE>' , // optional
+    timezone: .africaAbidjan, // optional
+    latitude:-90 , // optional
+    longitude:-180 , // optional
+    accuracy:0 , // optional
+    touch:false , // optional
+    permissions:[] , // optional
+    sleep:0 , // optional
+    width:0 , // optional
+    height:0 , // optional
+    quality:-1 , // optional
+    output: .jpg, // optional
+), // Works for both public file and private file, for private files you need to be logged in
+    builder: (context, snapshot) {
+      return snapshot.hasData && snapshot.data != null
+          ? Image.memory(snapshot.data)
+          : CircularProgressIndicator();
+    }
+);

lib/appwrite.dart

@@ -1,6 +1,6 @@
 /// Appwrite Flutter SDK
 ///
-/// This SDK is compatible with Appwrite server version 1.8.x.
+/// This SDK is compatible with Appwrite server version 1.8.x. 
 /// For older versions, please check
 /// [previous releases](https://github.com/appwrite/sdk-for-flutter/releases).
 library appwrite;

lib/client_browser.dart

@@ -1 +1 @@
-export 'src/client_browser.dart';
+export 'src/client_browser.dart';

lib/client_io.dart

@@ -1 +1 @@
-export 'src/client_io.dart';
+export 'src/client_io.dart';

lib/enums.dart

@@ -7,6 +7,9 @@ part 'src/enums/o_auth_provider.dart';
 part 'src/enums/browser.dart';
 part 'src/enums/credit_card.dart';
 part 'src/enums/flag.dart';
+part 'src/enums/theme.dart';
+part 'src/enums/timezone.dart';
+part 'src/enums/output.dart';
 part 'src/enums/execution_method.dart';
 part 'src/enums/image_gravity.dart';
 part 'src/enums/image_format.dart';

lib/operator.dart

@@ -31,7 +31,7 @@ class Operator {
 
     result['method'] = method;
 
-    if (values != null) {
+    if(values != null) {
       result['values'] = values is List ? values : [values];
     }
 
@@ -147,7 +147,8 @@ class Operator {
       Operator._('arrayRemove', [value]).toString();
 
   /// Remove duplicate values from an array attribute.
-  static String arrayUnique() => Operator._('arrayUnique', []).toString();
+  static String arrayUnique() =>
+      Operator._('arrayUnique', []).toString();
 
   /// Keep only values that exist in both the current array and the provided array.
   static String arrayIntersect(List<dynamic> values) =>
@@ -172,7 +173,8 @@ class Operator {
       Operator._('stringReplace', [search, replace]).toString();
 
   /// Toggle a boolean attribute.
-  static String toggle() => Operator._('toggle', []).toString();
+  static String toggle() =>
+      Operator._('toggle', []).toString();
 
   /// Add days to a date attribute.
   static String dateAddDays(int days) =>
@@ -183,5 +185,6 @@ class Operator {
       Operator._('dateSubDays', [days]).toString();
 
   /// Set a date attribute to the current date and time.
-  static String dateSetNow() => Operator._('dateSetNow', []).toString();
+  static String dateSetNow() =>
+      Operator._('dateSetNow', []).toString();
 }

lib/query.dart

@@ -10,14 +10,14 @@ class Query {
 
   Map<String, dynamic> toJson() {
     final result = <String, dynamic>{};
-
+    
     result['method'] = method;
-
-    if (attribute != null) {
+    
+    if(attribute != null) {
       result['attribute'] = attribute;
     }
-
-    if (values != null) {
+    
+    if(values != null) {
       result['values'] = values is List ? values : [values];
     }
 
@@ -28,7 +28,7 @@ class Query {
   String toString() => jsonEncode(toJson());
 
   /// Filter resources where [attribute] is equal to [value].
-  ///
+  /// 
   /// [value] can be a single value or a list. If a list is used
   /// the query will return resources where [attribute] is equal
   /// to any of the values in the list.
@@ -106,36 +106,40 @@ class Query {
       Query._('notEndsWith', attribute, value).toString();
 
   /// Filter resources where document was created before [value].
-  static String createdBefore(String value) => lessThan('\$createdAt', value);
+  static String createdBefore(String value) =>
+      lessThan('\$createdAt', value);
 
   /// Filter resources where document was created after [value].
-  static String createdAfter(String value) => greaterThan('\$createdAt', value);
+  static String createdAfter(String value) =>
+      greaterThan('\$createdAt', value);
 
   /// Filter resources where document was created between [start] and [end] (inclusive).
   static String createdBetween(String start, String end) =>
       between('\$createdAt', start, end);
 
   /// Filter resources where document was updated before [value].
-  static String updatedBefore(String value) => lessThan('\$updatedAt', value);
+  static String updatedBefore(String value) =>
+      lessThan('\$updatedAt', value);
 
   /// Filter resources where document was updated after [value].
-  static String updatedAfter(String value) => greaterThan('\$updatedAt', value);
+  static String updatedAfter(String value) =>
+      greaterThan('\$updatedAt', value);
 
   /// Filter resources where document was updated between [start] and [end] (inclusive).
   static String updatedBetween(String start, String end) =>
       between('\$updatedAt', start, end);
 
   static String or(List<String> queries) => Query._(
-        'or',
-        null,
-        queries.map((query) => jsonDecode(query)).toList(),
-      ).toString();
+    'or',
+    null,
+    queries.map((query) => jsonDecode(query)).toList(),
+  ).toString();
 
   static String and(List<String> queries) => Query._(
-        'and',
-        null,
-        queries.map((query) => jsonDecode(query)).toList(),
-      ).toString();
+    'and',
+    null,
+    queries.map((query) => jsonDecode(query)).toList(),
+  ).toString();
 
   /// Specify which attributes should be returned by the API call.
   static String select(List<String> attributes) =>
@@ -150,17 +154,18 @@ class Query {
       Query._('orderDesc', attribute).toString();
 
   /// Sort results randomly.
-  static String orderRandom() => Query._('orderRandom').toString();
+  static String orderRandom() =>
+      Query._('orderRandom').toString();
 
   /// Return results before [id].
-  ///
+  /// 
   /// Refer to the [Cursor Based Pagination](https://appwrite.io/docs/pagination#cursor-pagination)
   /// docs for more information.
   static String cursorBefore(String id) =>
       Query._('cursorBefore', null, id).toString();
 
   /// Return results after [id].
-  ///
+  /// 
   /// Refer to the [Cursor Based Pagination](https://appwrite.io/docs/pagination#cursor-pagination)
   /// docs for more information.
   static String cursorAfter(String id) =>
@@ -170,43 +175,27 @@ class Query {
   static String limit(int limit) => Query._('limit', null, limit).toString();
 
   /// Return results from [offset].
-  ///
+  /// 
   /// Refer to the [Offset Pagination](https://appwrite.io/docs/pagination#offset-pagination)
   /// docs for more information.
   static String offset(int offset) =>
       Query._('offset', null, offset).toString();
 
   /// Filter resources where [attribute] is at a specific distance from the given coordinates.
-  static String distanceEqual(
-          String attribute, List<dynamic> values, num distance,
-          [bool meters = true]) =>
-      Query._('distanceEqual', attribute, [
-        [values, distance, meters]
-      ]).toString();
+  static String distanceEqual(String attribute, List<dynamic> values, num distance, [bool meters = true]) =>
+      Query._('distanceEqual', attribute, [[values, distance, meters]]).toString();
 
   /// Filter resources where [attribute] is not at a specific distance from the given coordinates.
-  static String distanceNotEqual(
-          String attribute, List<dynamic> values, num distance,
-          [bool meters = true]) =>
-      Query._('distanceNotEqual', attribute, [
-        [values, distance, meters]
-      ]).toString();
+  static String distanceNotEqual(String attribute, List<dynamic> values, num distance, [bool meters = true]) =>
+      Query._('distanceNotEqual', attribute, [[values, distance, meters]]).toString();
 
   /// Filter resources where [attribute] is at a distance greater than the specified value from the given coordinates.
-  static String distanceGreaterThan(
-          String attribute, List<dynamic> values, num distance,
-          [bool meters = true]) =>
-      Query._('distanceGreaterThan', attribute, [
-        [values, distance, meters]
-      ]).toString();
+  static String distanceGreaterThan(String attribute, List<dynamic> values, num distance, [bool meters = true]) =>
+      Query._('distanceGreaterThan', attribute, [[values, distance, meters]]).toString();
 
   /// Filter resources where [attribute] is at a distance less than the specified value from the given coordinates.
-  static String distanceLessThan(
-          String attribute, List<dynamic> values, num distance,
-          [bool meters = true]) =>
-      Query._('distanceLessThan', attribute, [
-        [values, distance, meters]
-      ]).toString();
+  static String distanceLessThan(String attribute, List<dynamic> values, num distance, [bool meters = true]) =>
+      Query._('distanceLessThan', attribute, [[values, distance, meters]]).toString();
 
   /// Filter resources where [attribute] intersects with the given geometry.
   static String intersects(String attribute, List<dynamic> values) =>
@@ -239,4 +228,4 @@ class Query {
   /// Filter resources where [attribute] does not touch the given geometry.
   static String notTouches(String attribute, List<dynamic> values) =>
       Query._('notTouches', attribute, [values]).toString();
-}
+}

lib/realtime_browser.dart

@@ -1 +1 @@
-export 'src/realtime_browser.dart';
+export 'src/realtime_browser.dart';

lib/realtime_io.dart

@@ -1 +1 @@
-export 'src/realtime_io.dart';
+export 'src/realtime_io.dart';