[monorepo][lg] - move over examples

examples/ckan/lib/apolloClient.ts

@@ -0,0 +1,93 @@
+import { useMemo } from 'react';
+import getConfig from 'next/config';
+import { ApolloClient } from '@apollo/client';
+import {
+  InMemoryCache,
+  NormalizedCache,
+  NormalizedCacheObject,
+} from 'apollo-cache-inmemory';
+import { RestLink } from 'apollo-link-rest';
+import { ApolloLink } from '@apollo/client';
+
+let apolloClient:
+  | ApolloClient<NormalizedCache>
+  | ApolloClient<NormalizedCacheObject>;
+
+const restLink = new RestLink({
+  uri: getConfig().publicRuntimeConfig.DMS + '/api/3/action/',
+  endpoints: {
+    wordpress: `https://public-api.wordpress.com/rest/v1.1/sites/${
+      getConfig().publicRuntimeConfig.CMS
+    }/posts/slug:`,
+    'wordpress-posts': `https://public-api.wordpress.com/rest/v1.1/sites/${
+      getConfig().publicRuntimeConfig.CMS
+    }/posts/`,
+  },
+  typePatcher: {
+    Search: (data: any): any => {
+      if (data.result != null) {
+        data.result.__typename = 'SearchResponse';
+
+        if (data.result.results != null) {
+          data.result.results = data.result.results.map((item) => {
+            if (item.organization != null) {
+              item.organization.__typename = 'Organization';
+            }
+            return { __typename: 'Package', ...item };
+          });
+        }
+      }
+      return data;
+    },
+    Response: (data: any): any => {
+      if (data.result != null) {
+        data.result.__typename = 'Package';
+        if (data.result.organization != null) {
+          data.result.organization.__typename = 'Organization';
+        }
+
+        if (data.result.resources != null) {
+          data.result.resources = data.result.resources.map((item) => {
+            return { __typename: 'Resource', ...item };
+          });
+        }
+      }
+      return data;
+    },
+  },
+});
+
+function createApolloClient() {
+  return new ApolloClient({
+    link: restLink as any,
+    cache: new InMemoryCache(),
+  });
+}
+
+export function initializeApollo(
+  initialState = null
+): ApolloClient<NormalizedCache> | ApolloClient<NormalizedCacheObject> {
+  const _apolloClient:
+    | ApolloClient<NormalizedCache>
+    | ApolloClient<NormalizedCacheObject> =
+    apolloClient ?? createApolloClient();
+
+  // If your page has Next.js data fetching methods that use Apollo Client, the initial state
+  // gets hydrated here
+  if (initialState) {
+    _apolloClient.cache.restore(initialState);
+  }
+  // For SSG and SSR always create a new Apollo Client
+  if (typeof window === 'undefined') return _apolloClient;
+  // Create the Apollo Client once in the client
+  if (!apolloClient) apolloClient = _apolloClient;
+
+  return _apolloClient;
+}
+
+export function useApollo(
+  initialState = null
+): ApolloClient<NormalizedCache> | ApolloClient<NormalizedCacheObject> {
+  const store = useMemo(() => initializeApollo(initialState), [initialState]);
+  return store;
+}