search result redirects

lib/api/nodeFetch.ts

+import type { IncomingMessage } from 'http';
 import type { NextApiRequest } from 'next';
+import type { NextApiRequestCookies } from 'next/dist/server/api-utils';
 import type { RequestInit, Response } from 'node-fetch';
 import nodeFetch from 'node-fetch';
 
@@ -6,7 +8,7 @@ import { httpLogger } from 'lib/api/logger';
 import * as cookies from 'lib/cookies';
 
 export default function fetchFactory(
-  _req: NextApiRequest,
+  _req: NextApiRequest | (IncomingMessage & { cookies: NextApiRequestCookies }),
 ) {
   // first arg can be only a string
   // FIXME migrate to RequestInfo later if needed

lib/api/resources.ts

@@ -240,6 +240,9 @@ export const RESOURCES = {
     ],
     filterFields: [ 'q' ],
   },
+  search_check_redirect: {
+    path: '/api/v2/search/check-redirect',
+  },
 
   // DEPRECATED
   old_api: {

lib/next/getServerSideProps.ts

-import type { GetServerSideProps, GetServerSidePropsResult } from 'next';
+import type { GetServerSideProps } from 'next';
 
 export type Props = {
   cookies: string;
@@ -6,7 +6,7 @@ export type Props = {
   id?: string;
 }
 
-export const getServerSideProps: GetServerSideProps = async({ req, query }): Promise<GetServerSidePropsResult<Props>> => {
+export const getServerSideProps: GetServerSideProps<Props> = async({ req, query }) => {
   return {
     props: {
       cookies: req.headers.cookie || '',

pages/search-results.tsx

-import type { NextPage } from 'next';
+import type { GetServerSideProps, NextPage } from 'next';
 import Head from 'next/head';
 import React from 'react';
 
+import type { SearchRedirectResult } from 'types/api/search';
+
+import buildUrlNode from 'lib/api/buildUrlNode';
+import fetchFactory from 'lib/api/nodeFetch';
+import link from 'lib/link/link';
 import getNetworkTitle from 'lib/networks/getNetworkTitle';
+import type { Props } from 'lib/next/getServerSideProps';
+import { getServerSideProps as getServerSidePropsBase } from 'lib/next/getServerSideProps';
 import SearchResults from 'ui/pages/SearchResults';
 
 const SearchResultsPage: NextPage = () => {
@@ -19,4 +26,42 @@ const SearchResultsPage: NextPage = () => {
 
 export default SearchResultsPage;
 
-export { getServerSideProps } from 'lib/next/getServerSideProps';
+export const getServerSideProps: GetServerSideProps<Props> = async({ req, res, resolvedUrl, query }) => {
+  try {
+    const q = String(query.q);
+    const url = buildUrlNode('search_check_redirect', undefined, { q });
+    const redirectsResponse = await fetchFactory(req)(url);
+    const payload = await redirectsResponse.json() as SearchRedirectResult;
+
+    if (!payload || typeof payload !== 'object' || !payload.redirect) {
+      throw Error();
+    }
+
+    const redirectUrl = (() => {
+      switch (payload.type) {
+        case 'block': {
+          return link('block', { id: q });
+        }
+        case 'address': {
+          return link('address_index', { id: payload.parameter || q });
+        }
+        case 'transaction': {
+          return link('tx', { id: q });
+        }
+      }
+    })();
+
+    if (!redirectUrl) {
+      throw Error();
+    }
+
+    return {
+      redirect: {
+        destination: redirectUrl,
+        permanent: false,
+      },
+    };
+  } catch (error) {}
+
+  return getServerSidePropsBase({ req, res, resolvedUrl, query });
+};

types/api/search.ts

@@ -49,3 +49,9 @@ export interface SearchResult {
 export interface SearchResultFilters {
   q: string;
 }
+
+export interface SearchRedirectResult {
+  parameter: string | null;
+  redirect: boolean;
+  type: 'address' | 'block' | 'transaction' | null;
+}