Improve error handling when fetching blog feeds (#798)

* ignore blogs/feeds json

* improve error handling of fetching external feeds

* add optional chaining to json parsing

.gitignore

@@ -26,3 +26,7 @@ products/**/*.tag.mdx
 products/**/sidebar.js
 products/**/sidebar.ts
 products/**/versions.json
+
+# downloaded feeds/blogs
+src/**/blogs.json
+src/**/feeds.json

package.json

@@ -5,11 +5,11 @@
   "license": "",
   "scripts": {
     "docusaurus": "docusaurus",
-    "start": "yarn gen-all && docusaurus start",
+    "start": "yarn getAllFeeds && yarn gen-all && docusaurus start",
     "build": "run-script-os",
     "build:windows": "set NODE_OPTIONS=--max_old_space_size=8192 && yarn gen-all && yarn docusaurus build",
     "build:default": "export NODE_OPTIONS=--max_old_space_size=8192 && yarn gen-all && yarn docusaurus build",
-    "build-github": "export NODE_OPTIONS=--max_old_space_size=96000 && yarn getBlogs && yarn getHashicorpBlogs && yarn gen-all && DOCUSAURUS_PERF_LOGGER=true yarn docusaurus build",
+    "build-github": "export NODE_OPTIONS=--max_old_space_size=96000 && yarn getAllFeeds && yarn gen-all && DOCUSAURUS_PERF_LOGGER=true yarn docusaurus build",
     "swizzle": "docusaurus swizzle",
     "deploy": "docusaurus deploy",
     "clear": "docusaurus clear",
@@ -21,11 +21,12 @@
     "gen-all": "docusaurus gen-api-docs all --all-versions",
     "clean-all": "docusaurus clean-api-docs all --all-versions",
     "re-gen": "yarn clean-all && yarn gen-all",
-    "getBlogs": "curl -H \"Accept: application/json\" \"https://www.toptal.com/developers/feed2json/convert?url=https%3A%2F%2Fmedium.com%2Ffeed%2Fpalo-alto-networks-developer-blog\" -o src/components/Medium/blogs.json",
-    "getHashicorpBlogs": "curl -H \"Accept: application/json\" \"https://www.toptal.com/developers/feed2json/convert?url=https%3A%2F%2Fwww.hashicorp.com%2Fblog%2Fproducts%2Fterraform%2Ffeed.xml\" -o src/components/ProductLandingPage/Feeds/feeds.json",
-    "start:netsec": "cross-env PRODUCTS_INCLUDE=cdss,threat-vault,dns-security,iot,expedition,cloudngfw,cdl,panos,terraform,ansible,splunk,aiops-ngfw-bpa,email-dlp,dlp yarn start",
+    "getBlogs": "curl -f -s -H \"Accept: application/json\" \"https://www.toptal.com/developers/feed2json/convert?url=https%3A%2F%2Fmedium.com%2Ffeed%2Fpalo-alto-networks-developer-blog\" -o src/components/Medium/blogs.json || (echo \"[]\" > src/components/Medium/blogs.json)",
+    "getHashicorpBlogs": "curl -f -s -H \"Accept: application/json\" \"https://www.toptal.com/developers/feed2json/convert?url=https%3A%2F%2Fwww.hashicorp.com%2Fblog%2Fproducts%2Fterraform%2Ffeed.xml\" -o src/components/ProductLandingPage/Feeds/feeds.json || (echo \"[]\" > src/components/ProductLandingPage/Feeds/feeds.json)",
+    "getAllFeeds": "yarn --silent getBlogs && yarn --silent getHashicorpBlogs",
+    "start:netsec": "cross-env PRODUCTS_INCLUDE=cdss,threat-vault,dns-security,iot,expedition,cloudngfw,cdl,panos,terraform,ansible,splunk,aiops-ngfw-bpa,email-dlp,dlp,ai-runtime-security yarn start",
     "start:splunk": "cross-env PRODUCTS_INCLUDE=panos,terraform,ansible,splunk yarn start",
-    "start:sase": "cross-env PRODUCTS_INCLUDE=sase,access,sdwan yarn start",
+    "start:sase": "cross-env PRODUCTS_INCLUDE=sase,access,sdwan,scm yarn start",
     "start:cloud": "cross-env PRODUCTS_INCLUDE=prisma-cloud,compute yarn start",
     "clean": "yarn clean-all && yarn clear && yarn cache clean && yarn rimraf ./**/node_modules",
     "sos": "yarn clean && yarn install",

src/components/Medium/index.js

@@ -7,7 +7,7 @@ import "./Slider.scss";
 import styles from "./styles.module.css";
 
 const blog_json = require("./blogs.json");
-const blogs = blog_json.items.slice(0, 9);
+const blogs = blog_json?.items?.slice(0, 9);
 
 function Medium() {
   const sliderSettings = {