nuxt-apollo/dist/runtime/plugins/apolloWithoutWs.js

Apollo client for Nuxt 3

import { ApolloClient, InMemoryCache, HttpLink } from "@apollo/client/core";
import { DefaultApolloClient } from "@vue/apollo-composable";
import { setContext } from "@apollo/client/link/context";
import { defineNuxtPlugin, useRequestHeaders } from "#imports";
export default defineNuxtPlugin({
  enforce: "post",
  setup: (nuxtApp) => {
    const config = nuxtApp.$config.public.apollo;
    const reqHeaders = useRequestHeaders(["cookie"]);
    const httpLink = new HttpLink({
      uri: config.httpEndpoint,
      credentials: config.credentials,
      headers: config.proxyCookies ? reqHeaders : {}
    });
    const authLink = setContext(async (_, { headers }) => {
      const args = { authorization: void 0 };
      await nuxtApp.callHook("apollo:http-auth", args);
      return {
        headers: {
          ...headers,
          authorization: args.authorization
        }
      };
    });
    const apolloClient = new ApolloClient({
      link: authLink.concat(httpLink),
      cache: new InMemoryCache()
    });
    nuxtApp.vueApp.provide(DefaultApolloClient, apolloClient);
  }
});