readme update and prune request-promise

README.md

@@ -1,9 +1,17 @@
-# Shopify Node.js + Express Application
+# Partytown.js service worker Server with app proxy + simple reverse proxy 
 
-This is a Node.js + Express Application that connects to Shopify. The application will authenticate with a shop, request a permanent access token, and then use that access token to make an API call.
+## Partytown
+This app serves partytown scripts at `/proxy` path to Shopify. These assets are meant to be loaded to the storefront through app proxy which means they become scripts served at first party.
 
+## Reverse Proxy
+Reverse proxy is for adding gzip and stripping headers of resources. However maybe it should be used 
 
-## License
-[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/jaayperez/shopify-node-express-app/blob/master/LICENSE)  
 
-This work by [Justin Perez](https://justinperez.com) is licensed under a <a rel="license" href="https://github.com/jaayperez/shopify-node-express-app/blob/master/LICENSE">MIT License Copyright © 2020</a>.
+## Deploy on Railway
+You can deploy with 1 click here.
+You will need env variables handy.
+
+[![Deploy on Railway](https://railway.app/button.svg)](https://railway.app/template/YK6PSO?referralCode=g0Vyyu)
+
+## A bit more explanation
+https://www.youtube.com/watch?v=f_n-YPq2ZAg

index.js

@@ -7,7 +7,6 @@ const crypto = require('crypto');
 const cookie = require('cookie');
 const nonce = require('nonce')();
 const querystring = require('querystring');
-const request = require('request-promise');
 
 const apiKey = process.env.SHOPIFY_API_KEY;
 const apiSecret = process.env.SHOPIFY_API_SECRET;
@@ -24,7 +23,7 @@ app.use((req, res, next) => {
 app.use('/proxy', express.static('./static'));
 
 app.get('/', (req, res) => {
-  res.send('Hello Justin!');
+  res.send('Your server is up. Add shop parameter to url to start a install on a shop. eg /shopify?shop=xxx.myshopify.com');
 });
 
 app.use('/reverse-proxy', async (req, res) => {
@@ -78,7 +77,7 @@ app.get('/shopify', (req, res) => {
 });
 
 // Shopify callback route
-app.get('/shopify/callback', (req, res) => {
+app.get('/shopify/callback', async (req, res) => {
   const { shop, hmac, code, state } = req.query;
   const stateCookie = cookie.parse(req.headers.cookie).state;
 
@@ -121,26 +120,33 @@ app.get('/shopify/callback', (req, res) => {
       code,
     };
 
-    request.post(accessTokenRequestUrl, { json: accessTokenPayload })
-    .then((accessTokenResponse) => {
-      const accessToken = accessTokenResponse.access_token;
-      // DONE: Use access token to make API call to 'shop' endpoint
-      const shopRequestUrl = 'https://' + shop + '/admin/api/2020-01/shop.json';
-      const shopRequestHeaders = {
-        'X-Shopify-Access-Token': accessToken,
-      };
-
-      request.get(shopRequestUrl, { headers: shopRequestHeaders })
-      .then((shopResponse) => {
-        res.status(200).end(shopResponse);
+    fetch(accessTokenRequestUrl, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(accessTokenPayload),
+    })
+      .then((accessTokenResponse) => accessTokenResponse.json())
+      .then((accessTokenResponse) => {
+        const accessToken = accessTokenResponse.access_token;
+        const shopRequestUrl = 'https://' + shop + '/admin/api/2020-01/shop.json';
+        const shopRequestHeaders = {
+          'X-Shopify-Access-Token': accessToken,
+        };
+
+        fetch(shopRequestUrl, { headers: shopRequestHeaders })
+          .then((shopResponse) => shopResponse.json())
+          .then((shopResponse) => {
+            res.status(200).end(shopResponse);
+          })
+          .catch((error) => {
+            res.status(error.statusCode).send(error.error.error_description);
+          });
       })
       .catch((error) => {
         res.status(error.statusCode).send(error.error.error_description);
       });
-    })
-    .catch((error) => {
-      res.status(error.statusCode).send(error.error.error_description);
-    });
 
   } else {
     res.status(400).send('Required parameters missing');

package.json

@@ -24,8 +24,6 @@
     "express": "^4.17.2",
     "isomorphic-fetch": "^3.0.0",
     "nodemon": "^2.0.16",
-    "nonce": "^1.0.4",
-    "request": "^2.88.2",
-    "request-promise": "^4.2.6"
+    "nonce": "^1.0.4"
   }
 }