Example star wars done

angel_graphql/lib/src/resolvers.dart

@@ -8,6 +8,11 @@ Map<String, dynamic> _fetchRequestInfo(Map<String, dynamic> arguments) {
   };
 }
 
+Map<String, dynamic> _getQuery(Map<String, dynamic> arguments) {
+  var f = Map<String, dynamic>.from(arguments)..remove('id')..remove('data');
+  return f.isEmpty ? null : {};
+}
+
 /// A GraphQL resolver that `index`es an Angel service.
 ///
 /// The arguments passed to the resolver will be forwarded to the service, and the
@@ -16,7 +21,7 @@ GraphQLFieldResolver<List<Value>, Serialized>
     resolveViaServiceIndex<Value, Serialized>(Service<dynamic, Value> service) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
 
     return await service.index(params);
@@ -32,7 +37,7 @@ GraphQLFieldResolver<Value, Serialized>
         Service<dynamic, Value> service) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
     return await service.findOne(params);
   };
@@ -50,7 +55,7 @@ GraphQLFieldResolver<Value, Serialized>
         {String idField: 'id'}) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
     var id = arguments.remove(idField);
     return await service.read(id, params);
@@ -70,8 +75,9 @@ GraphQLFieldResolver<Value, Serialized>
         {String idField: 'id'}) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
+    print(params);
     var id = arguments.remove(idField);
     return await service.modify(id, arguments['data'] as Value, params);
   };
@@ -93,7 +99,7 @@ GraphQLFieldResolver<Value, Serialized>
         {String idField: 'id'}) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
     var id = arguments.remove(idField);
     return await service.update(id, arguments['data'] as Value, params);
@@ -112,7 +118,7 @@ GraphQLFieldResolver<Value, Serialized>
         {String idField: 'id'}) {
   return (_, arguments) async {
     var _requestInfo = _fetchRequestInfo(arguments);
-    var params = {'query': arguments, 'provider': Providers.graphQL}
+    var params = {'query': _getQuery(arguments), 'provider': Providers.graphQL}
       ..addAll(_requestInfo);
     var id = arguments.remove(idField);
     return await service.remove(id, params);

example_star_wars/lib/star_wars.dart

@@ -4,6 +4,7 @@ import 'package:angel_framework/angel_framework.dart';
 import 'package:angel_graphql/angel_graphql.dart';
 import 'package:graphql_schema/graphql_schema.dart';
 import 'package:graphql_server/graphql_server.dart';
+import 'package:graphql_server/mirrors.dart';
 import 'src/models/models.dart';
 
 Future configureServer(Angel app) async {
@@ -90,7 +91,11 @@ Future configureServer(Angel app) async {
 
   // Next, create a GraphQL object, which will be passed to `graphQLHttp`, and
   // used to mount a spec-compliant GraphQL endpoint on the server.
-  var graphQL = GraphQL(schema);
+  //
+  // The `mirrorsFieldResolver` is unnecessary in this case, because we are using
+  // `Map`s only, but if our services returned concrete Dart objects, we'd need
+  // this to allow GraphQL to read field values.
+  var graphQL = GraphQL(schema, defaultFieldResolver: mirrorsFieldResolver);
 
   // Mount the GraphQL endpoint.
   app.all('/graphql', graphQLHttp(graphQL));

graphql_server/lib/graphql_server.dart

@@ -1,10 +1,9 @@
 import 'dart:async';
-
 import 'package:graphql_parser/graphql_parser.dart';
 import 'package:graphql_schema/graphql_schema.dart';
-
 import 'introspection.dart';
 
+/// Transforms any [Map] into `Map<String, dynamic>`.
 Map<String, dynamic> foldToStringDynamic(Map map) {
   return map == null
       ? null
@@ -12,12 +11,21 @@ Map<String, dynamic> foldToStringDynamic(Map map) {
           <String, dynamic>{}, (out, k) => out..[k.toString()] = map[k]);
 }
 
+/// A Dart implementation of a GraphQL server.
 class GraphQL {
+  /// Any custom types to include in introspection information.
   final List<GraphQLType> customTypes = [];
+
+  /// An optional callback that can be used to resolve fields from objects that are not [Map]s,
+  /// when the related field has no resolver.
+  final FutureOr<T> Function<T>(T, String, Map<String, dynamic>)
+      defaultFieldResolver;
+
   GraphQLSchema _schema;
 
   GraphQL(GraphQLSchema schema,
       {bool introspect: true,
+      this.defaultFieldResolver,
       List<GraphQLType> customTypes = const <GraphQLType>[]})
       : _schema = schema {
     if (customTypes?.isNotEmpty == true) {
@@ -473,6 +481,14 @@ class GraphQL {
     var field = objectType.fields.firstWhere((f) => f.name == fieldName);
 
     if (field.resolve == null) {
+      if (defaultFieldResolver != null)
+        return await defaultFieldResolver(
+            objectValue, fieldName, argumentValues);
+
+      if (objectValue is Map) {
+        return objectValue[fieldName] as T;
+      }
+
       return null;
     } else {
       return await field.resolve(objectValue, argumentValues) as T;
@@ -571,7 +587,6 @@ class GraphQL {
 
     var errors = <GraphQLExceptionError>[];
 
-    print(possibleTypes);
     for (var t in possibleTypes) {
       try {
         var validation =

graphql_server/lib/mirrors.dart

@@ -9,6 +9,15 @@ import 'package:angel_serialize/angel_serialize.dart';
 import 'package:graphql_schema/graphql_schema.dart';
 import 'package:recase/recase.dart';
 
+/// Uses `dart:mirrors` to read field names from items. If they are Maps, performs a regular lookup.
+T mirrorsFieldResolver<T>(objectValue, String fieldName,
+    [Map<String, dynamic> objectValues]) {
+  if (objectValue is Map)
+    return objectValue[fieldName] as T;
+  else
+    return reflect(objectValue).getField(Symbol(fieldName)).reflectee as T;
+}
+
 /// Reflects upon a given [type] and dynamically generates a [GraphQLType] that corresponds to it.
 ///
 /// This function is aware of the annotations from `package:angel_serialize`, and works seamlessly