Update resolvers.ts

Author: jfabraxas

src/resolvers.ts

@@ -1,31 +1,68 @@
 import { IResolvers } from 'graphql-tools';
 import { DataSources } from './dataSources'; // Adjust the import based on your project structure
 
-export const resolvers: IResolvers = {
+const resolvers: IResolvers = {
   Query: {
+    node: async (_, { id }, { dataSources }: { dataSources: DataSources }) => {
+      const { type, idValue } = decodeGlobalId(id);
+      switch (type) {
+        case 'Project':
+          return dataSources.stackBlitzAPI.getProjectById(idValue);
+        case 'User':
+          return dataSources.stackBlitzAPI.getUserById(idValue);
+        default:
+          throw new Error(`No such type for id ${id}`);
+      }
+    },
+    
     projects: async (_, { first, after }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.getProjects(first, after);
     },
+    
     project: async (_, { id }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.getProjectById(id);
     },
+    
     users: async (_, { first, after }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.getUsers(first, after);
     },
+    
     user: async (_, { id }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.getUserById(id);
     },
   },
+  
 
   Mutation: {
     createProject: async (_, { input }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.createProject(input);
     },
+    
     updateProject: async (_, { id, input }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.updateProject(id, input);
     },
+    
     deleteProject: async (_, { id }, { dataSources }: { dataSources: DataSources }) => {
       return dataSources.stackBlitzAPI.deleteProject(id);
     },
   },
+
+  Node: {
+     // Resolve the global ID for both Project and User types.
+     __resolveType(obj) {
+       if (obj.title) return 'Project';
+       if (obj.username) return 'User';
+       return null; // GraphQLError is thrown for invalid types.
+     },
+   },
+};
+
+function decodeGlobalId(globalId) {
+   const decoded = Buffer.from(globalId, 'base64').toString('utf-8');
+   const [type, idValue] = decoded.split(':');
+   return { type, idValue };
 }
+
+export const Query = resolvers.Query
+export const Mutation = resolvers.Mutation
+export const Node = resolvers.Node