Split server from frontend route
This commit is contained in:
Maciej Ziarkowski
parent
c710b3c59c
commit
5daf0796d1
110
app/src/frontendRoute.tsx
Normal file
110
app/src/frontendRoute.tsx
Normal file
@ -0,0 +1,110 @@
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import express from 'express';
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import React from 'react';
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import { StaticRouter } from 'react-router-dom';
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import { renderToString } from 'react-dom/server';
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import serialize from 'serialize-javascript';
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import App from './frontend/app';
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import { parseBuildingURL } from './parse';
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import { getUserById } from './api/services/user';
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import {
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getBuildingById,
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getBuildingLikeById,
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getBuildingUPRNsById
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} from './api/services/building';
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// reference packed assets
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const assets = require(process.env.RAZZLE_ASSETS_MANIFEST);
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function frontendRoute(req: express.Request, res: express.Response) {
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const context: any = {}; // TODO: remove any
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const data: any = {}; // TODO: remove any
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context.status = 200;
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const userId = req.session.user_id;
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const buildingId = parseBuildingURL(req.url);
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const isBuilding = (typeof (buildingId) !== 'undefined');
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if (isBuilding && isNaN(buildingId)) {
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context.status = 404;
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}
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Promise.all([
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userId ? getUserById(userId) : undefined,
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isBuilding ? getBuildingById(buildingId) : undefined,
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isBuilding ? getBuildingUPRNsById(buildingId) : undefined,
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(isBuilding && userId) ? getBuildingLikeById(buildingId, userId) : false
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]).then(function ([user, building, uprns, buildingLike]) {
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if (isBuilding && typeof (building) === 'undefined') {
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context.status = 404;
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}
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data.user = user;
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data.building = building;
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data.building_like = buildingLike;
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if (data.building != null) {
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data.building.uprns = uprns;
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}
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renderHTML(context, data, req, res);
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}).catch(error => {
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console.error(error);
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data.user = undefined;
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data.building = undefined;
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data.building_like = undefined;
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context.status = 500;
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renderHTML(context, data, req, res);
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});
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}
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function renderHTML(context, data, req, res) {
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const markup = renderToString(
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<StaticRouter context={context} location={req.url}>
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<App user={data.user} building={data.building} building_like={data.building_like} />
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</StaticRouter>
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);
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if (context.url) {
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res.redirect(context.url);
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} else {
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res.status(context.status).send(
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`<!doctype html>
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<html lang="">
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<head>
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta charset="utf-8" />
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<title>Colouring London</title>
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<style>
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@font-face {
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font-family: 'glacial_cl';
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src: url('/fonts/glacialindifference-regular-webfont.woff2') format('woff2'),
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url('/fonts/glacialindifference-regular-webfont.woff') format('woff');
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font-weight: normal;
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font-style: normal;
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}
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</style>
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${
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assets.client.css
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? `<link rel="stylesheet" href="${assets.client.css}">`
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: ''
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}
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${
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process.env.NODE_ENV === 'production'
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? `<script src="${assets.client.js}" defer></script>`
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: `<script src="${assets.client.js}" defer crossorigin></script>`
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}
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</head>
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<body>
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<div id="root">${markup}</div>
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<script>
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window.__PRELOADED_STATE__ = ${serialize(data)}
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</script>
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</body>
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</html>`
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);
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}
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}
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export default frontendRoute;
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@ -4,40 +4,25 @@
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* - entry-point to shared React App
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*
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*/
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import React from 'react';
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import { StaticRouter } from 'react-router-dom';
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import express from 'express';
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import { renderToString } from 'react-dom/server';
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import serialize from 'serialize-javascript';
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import session from 'express-session';
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import pgConnect from 'connect-pg-simple';
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import App from './frontend/app';
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import db from './db';
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import { getUserById } from './api/services/user';
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import {
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getBuildingById,
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getBuildingLikeById,
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getBuildingUPRNsById
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} from './api/services/building';
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import tileserver from './tiles/tileserver';
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import apiServer from './api/api';
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import { parseBuildingURL } from './parse';
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import frontendRoute from './frontendRoute';
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// create server
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const server = express();
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// reference packed assets
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const assets = require(process.env.RAZZLE_ASSETS_MANIFEST);
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// disable header
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server.disable('x-powered-by');
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// serve static files
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server.use(express.static(process.env.RAZZLE_PUBLIC_DIR));
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// handle user sessions
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const pgSession = pgConnect(session);
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const sess: any = { // TODO: remove any
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@ -59,106 +44,8 @@ if (server.get('env') === 'production') {
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}
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server.use(session(sess));
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// handle HTML routes (server-side rendered React)
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server.get('/*.html', frontendRoute);
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server.get('/', frontendRoute);
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function frontendRoute(req, res) {
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const context: any = {}; // TODO: remove any
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const data: any = {}; // TODO: remove any
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context.status = 200;
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const userId = req.session.user_id;
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const buildingId = parseBuildingURL(req.url);
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const isBuilding = (typeof (buildingId) !== 'undefined');
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if (isBuilding && isNaN(buildingId)) {
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context.status = 404;
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}
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Promise.all([
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userId ? getUserById(userId) : undefined,
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isBuilding ? getBuildingById(buildingId) : undefined,
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isBuilding ? getBuildingUPRNsById(buildingId) : undefined,
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(isBuilding && userId) ? getBuildingLikeById(buildingId, userId) : false
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]).then(function (values) {
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const user = values[0];
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const building = values[1];
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const uprns = values[2];
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const buildingLike = values[3];
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if (isBuilding && typeof (building) === 'undefined') {
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context.status = 404
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}
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data.user = user;
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data.building = building;
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data.building_like = buildingLike;
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if (data.building != null) {
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data.building.uprns = uprns;
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}
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renderHTML(context, data, req, res)
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}).catch(error => {
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console.error(error);
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data.user = undefined;
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data.building = undefined;
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data.building_like = undefined;
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context.status = 500;
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renderHTML(context, data, req, res);
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});
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}
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function renderHTML(context, data, req, res) {
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const markup = renderToString(
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<StaticRouter context={context} location={req.url}>
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<App user={data.user} building={data.building} building_like={data.building_like} />
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</StaticRouter>
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);
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if (context.url) {
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res.redirect(context.url);
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} else {
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res.status(context.status).send(
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`<!doctype html>
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<html lang="">
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<head>
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta charset="utf-8" />
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<title>Colouring London</title>
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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<style>
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@font-face {
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font-family: 'glacial_cl';
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src: url('/fonts/glacialindifference-regular-webfont.woff2') format('woff2'),
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url('/fonts/glacialindifference-regular-webfont.woff') format('woff');
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font-weight: normal;
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font-style: normal;
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}
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</style>
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${
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assets.client.css
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? `<link rel="stylesheet" href="${assets.client.css}">`
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: ''
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}
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${
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process.env.NODE_ENV === 'production'
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? `<script src="${assets.client.js}" defer></script>`
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: `<script src="${assets.client.js}" defer crossorigin></script>`
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}
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</head>
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<body>
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<div id="root">${markup}</div>
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<script>
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window.__PRELOADED_STATE__ = ${serialize(data)}
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</script>
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</body>
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</html>`
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);
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}
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}
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server.use('/tiles', tileserver);
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server.use('/api', apiServer);
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// use the frontend route for anything else - will presumably show the 404 page
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server.use(frontendRoute);
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export default server;
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