Try

Author: ardatan

examples/vue/apollo-composable/shims/apollo-v4-compat.ts

@@ -0,0 +1,25 @@
+export class ApolloError extends Error {
+  public graphQLErrors: any[];
+  public clientErrors: any[];
+  public networkError: any;
+  public extraInfo: any;
+
+  constructor(opts: {
+    graphQLErrors?: any[];
+    clientErrors?: any[];
+    networkError?: any;
+    errorMessage?: string;
+    extraInfo?: any;
+  }) {
+    super(opts.errorMessage || 'Apollo Client Error');
+    this.name = 'ApolloError';
+    this.graphQLErrors = opts.graphQLErrors ?? [];
+    this.clientErrors = opts.clientErrors ?? [];
+    this.networkError = opts.networkError;
+    this.extraInfo = opts.extraInfo;
+  }
+}
+
+export function isApolloError(err: unknown): err is ApolloError {
+  return err instanceof ApolloError;
+}

examples/vue/apollo-composable/vite.config.ts

@@ -1,7 +1,17 @@
+import { fileURLToPath } from 'url';
 import { defineConfig } from 'vite';
 import vue from '@vitejs/plugin-vue';
 
 // https://vitejs.dev/config/
 export default defineConfig({
   plugins: [vue()],
+  vite: {
+    resolve: {
+      alias: {
+        '@apollo/client/core/index.js': fileURLToPath(
+          new URL('./shims/apollo-v4-compat.ts', import.meta.url),
+        ),
+      },
+    },
+  },
 });