Initialisation

Added the packages and files for the backend server

node_modules/graphql/utilities/concatAST.mjs

@@ -0,0 +1,19 @@
+import { Kind } from '../language/kinds.mjs';
+/**
+ * Provided a collection of ASTs, presumably each from different files,
+ * concatenate the ASTs together into batched AST, useful for validating many
+ * GraphQL source files which together represent one conceptual application.
+ */
+
+export function concatAST(documents) {
+  const definitions = [];
+
+  for (const doc of documents) {
+    definitions.push(...doc.definitions);
+  }
+
+  return {
+    kind: Kind.DOCUMENT,
+    definitions,
+  };
+}