How to use

variables

method

in

com.apollographql.apollo.api.Subscription

static String idForSubscription(Subscription<?, ?, ?> subscription) {
 return subscription.operationId() + "$" + subscription.variables().valueMap().hashCode();
}

 @Override public void writeToJson(@NotNull JsonWriter writer) throws IOException {
  checkNotNull(writer, "writer == null");
  writer.name(JSON_KEY_ID).value(subscriptionId);
  writer.name(JSON_KEY_TYPE).value(TYPE);
  writer.name(JSON_KEY_PAYLOAD).beginObject();
  writer.name(JSON_KEY_QUERY).value(subscription.queryDocument().replaceAll("\\n", ""));
  writer.name(JSON_KEY_VARIABLES).beginObject();
  subscription.variables().marshaller().marshal(new InputFieldJsonWriter(writer, scalarTypeAdapters));
  writer.endObject();
  writer.name(JSON_KEY_OPERATION_NAME).value(subscription.name().name());
  writer.endObject();
 }
}