add shared memory object to context

src/index.ts

@@ -2,11 +2,12 @@ import { readFileSync } from "fs";
 import { ApolloServer } from "@apollo/server";
 import { startStandaloneServer } from "@apollo/server/standalone";
 import { resolvers } from "./resolvers";
+import { sharedMemory, SharedMemory } from "./sharedMemory";
 
 const typeDefs = readFileSync("./schema.graphql", "utf8");
 
 interface ServerContext {
-
+  sharedMemory: SharedMemory,
 }
 
 async function main() {
@@ -20,7 +21,9 @@ async function main() {
       port: 4000,
     },
     context: async ({ req, res }) => {
-      return {}
+      return {
+        sharedMemory,
+      }
     },
   });
 

src/sharedMemory.ts

@@ -1 +1,9 @@
-export const 
+import { System } from "./generated/graphql";
+
+export interface SharedMemory {
+  systems: System[],
+};
+
+export const sharedMemory: SharedMemory = {
+  systems: [],
+};