Initialisation

Added the packages and files for the backend server

node_modules/graphql/subscription/index.mjs

@@ -0,0 +1,19 @@
+/**
+ * NOTE: the `graphql/subscription` module has been deprecated with its
+ * exported functions integrated into the `graphql/execution` module, to
+ * better conform with the terminology of the GraphQL specification.
+ *
+ * For backwards compatibility, the `graphql/subscription` module
+ * currently re-exports the moved functions from the `graphql/execution`
+ * module. In the next major release, the `graphql/subscription` module
+ * will be dropped entirely.
+ */
+
+/**
+ * @deprecated use ExecutionArgs instead. Will be removed in v17
+ *
+ * ExecutionArgs has been broadened to include all properties within SubscriptionArgs.
+ * The SubscriptionArgs type is retained for backwards compatibility.
+ */
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export { subscribe, createSourceEventStream } from '../execution/subscribe.mjs';