Bump postcss and gatsby in /docs

apollo-compiler/src/main/kotlin/com/apollographql/apollo/compiler/SchemaTypeSpecBuilder.kt

@@ -222,7 +222,7 @@ class SchemaTypeSpecBuilder(
     fun responseMarshallerSpec(fieldSpecs: List<FieldSpec>): MethodSpec {
       val code = fieldSpecs
           .map { fieldSpec ->
-            if (fieldSpec.type.isOptional()) {
+            if (fieldSpec.type.isNullable()) {
               CodeBlock.builder()
                   .addStatement("final \$T \$L = \$L", fieldSpec.type.unwrapOptionalType().withoutAnnotations(),
                       "\$${fieldSpec.name}", fieldSpec.type.unwrapOptionalValue(fieldSpec.name))

apollo-compiler/src/test/graphql/com/example/fragments_with_type_condition_nullable/TestQuery.java

@@ -377,8 +377,14 @@ public ResponseFieldMarshaller marshaller() {
         return new ResponseFieldMarshaller() {
           @Override
           public void marshal(ResponseWriter writer) {
-            writer.writeFragment(humanDetails.marshaller());
-            writer.writeFragment(droidDetails.marshaller());
+            final HumanDetails $humanDetails = humanDetails;
+            if ($humanDetails != null) {
+              writer.writeFragment($humanDetails.marshaller());
+            }
+            final DroidDetails $droidDetails = droidDetails;
+            if ($droidDetails != null) {
+              writer.writeFragment($droidDetails.marshaller());
+            }
           }
         };
       }
@@ -575,8 +581,14 @@ public ResponseFieldMarshaller marshaller() {
         return new ResponseFieldMarshaller() {
           @Override
           public void marshal(ResponseWriter writer) {
-            writer.writeFragment(humanDetails.marshaller());
-            writer.writeFragment(droidDetails.marshaller());
+            final HumanDetails $humanDetails = humanDetails;
+            if ($humanDetails != null) {
+              writer.writeFragment($humanDetails.marshaller());
+            }
+            final DroidDetails $droidDetails = droidDetails;
+            if ($droidDetails != null) {
+              writer.writeFragment($droidDetails.marshaller());
+            }
           }
         };
       }

apollo-compiler/src/test/graphql/com/example/union_fragment/TestQuery.java

@@ -363,8 +363,14 @@ public ResponseFieldMarshaller marshaller() {
         return new ResponseFieldMarshaller() {
           @Override
           public void marshal(ResponseWriter writer) {
-            writer.writeFragment(character.marshaller());
-            writer.writeFragment(starship.marshaller());
+            final Character $character = character;
+            if ($character != null) {
+              writer.writeFragment($character.marshaller());
+            }
+            final Starship $starship = starship;
+            if ($starship != null) {
+              writer.writeFragment($starship.marshaller());
+            }
           }
         };
       }

apollo-runtime/src/main/java/com/apollographql/apollo/interceptor/ApolloInterceptor.java

@@ -201,6 +201,9 @@ public Builder useHttpGetMethodForQueries(boolean useHttpGetMethodForQueries) {
 
       public Builder autoPersistQueries(boolean autoPersistQueries) {
         this.autoPersistQueries = autoPersistQueries;
+        if (autoPersistQueries) {
+          sendQueryDocument = false;
+        }
         return this;
       }
 

apollo-runtime/src/main/java/com/apollographql/apollo/internal/subscription/RealSubscriptionManager.java

@@ -73,6 +73,7 @@ public void run() {
     }
   };
   private final List<OnSubscriptionManagerStateChangeListener> onStateChangeListeners = new CopyOnWriteArrayList<>();
+
   private final boolean autoPersistSubscription;
 
   public RealSubscriptionManager(@NotNull ScalarTypeAdapters scalarTypeAdapters,
@@ -89,6 +90,7 @@ public RealSubscriptionManager(@NotNull ScalarTypeAdapters scalarTypeAdapters,
     this.transport = transportFactory.create(new SubscriptionTransportCallback(this, dispatcher));
     this.dispatcher = dispatcher;
     this.connectionHeartbeatTimeoutMs = connectionHeartbeatTimeoutMs;
+
     this.responseNormalizer = responseNormalizer;
     this.autoPersistSubscription = autoPersistSubscription;
   }
@@ -309,7 +311,9 @@ void onOperationServerMessage(OperationServerMessage message) {
     } else if (message instanceof OperationServerMessage.Complete) {
       onCompleteServerMessage((OperationServerMessage.Complete) message);
     } else if (message instanceof OperationServerMessage.ConnectionError) {
-      disconnect(true);
+      // Jordan - Ignore connection errors, as they don't always mean the socket should be disconnected
+      // See https://github.com/apollographql/subscriptions-transport-ws/blob/master/PROTOCOL.md#gql_connection_error
+//      disconnect(true);
     } else if (message instanceof OperationServerMessage.ConnectionKeepAlive) {
       resetConnectionKeepAliveTimerTask();
     }

apollo-runtime/src/main/java/com/apollographql/apollo/subscription/OperationClientMessage.java

@@ -58,13 +58,15 @@ public Init(@NotNull Map<String, Object> connectionParams) {
   public static final class Start extends OperationClientMessage {
     private static final String TYPE = "start";
     private static final String JSON_KEY_QUERY = "query";
+    private static final String JSON_KEY_ID = "id";
     private static final String JSON_KEY_VARIABLES = "variables";
     private static final String JSON_KEY_OPERATION_NAME = "operationName";
     private static final String JSON_KEY_EXTENSIONS = "extensions";
     private static final String JSON_KEY_EXTENSIONS_PERSISTED_QUERY = "persistedQuery";
     private static final String JSON_KEY_EXTENSIONS_PERSISTED_QUERY_VERSION = "version";
     private static final String JSON_KEY_EXTENSIONS_PERSISTED_QUERY_HASH = "sha256Hash";
     private final ScalarTypeAdapters scalarTypeAdapters;
+    private boolean enableAutoPersistedQueries;
 
     public final String subscriptionId;
     public final Subscription<?, ?, ?> subscription;

apollo-runtime/src/test/java/com/apollographql/apollo/internal/interceptor/ApolloAutoPersistedQueryInterceptorTest.java

@@ -104,7 +104,7 @@ public void proceedAsync(@NotNull ApolloInterceptor.InterceptorRequest request,
               )
           );
         } else if (proceedAsyncInvocationCount == 2) {
-          assertThat(request.sendQueryDocument).isTrue();
+          assertThat(request.sendQueryDocument).isFalse();
           assertThat(request.autoPersistQueries).isTrue();
           callBack.onResponse(
               new ApolloInterceptor.InterceptorResponse(
@@ -157,7 +157,7 @@ public void proceedAsync(@NotNull ApolloInterceptor.InterceptorRequest request,
               )
           );
         } else if (proceedAsyncInvocationCount == 2) {
-          assertThat(request.sendQueryDocument).isTrue();
+          assertThat(request.sendQueryDocument).isFalse();
           assertThat(request.autoPersistQueries).isTrue();
           callBack.onResponse(
               new ApolloInterceptor.InterceptorResponse(