social-networking
Use SVG as og:image
OpenGraph does not support .svg as images http://indiewebcamp.com/The-Open-Graph-protocol#Does_not_support_SVG_images
How to clear Facebook Sharer cache?
I found a solution to my problem. You could go to this site: https://developers.facebook.com/tools/debug …then put in the URL of the page you want to share, and click “debug”. It will automatically extract all the info on your meta tags and also clear the cache.
Sending message through WhatsApp
UPDATE Please refer to https://faq.whatsapp.com/en/android/26000030/?category=5245251 WhatsApp’s Click to Chat feature allows you to begin a chat with someone without having their phone number saved in your phone’s address book. As long as you know this person’s phone number, you can create a link that will allow you to start a chat with them. Use: https://wa.me/15551234567 … Read more
How to implement the activity stream in a social network
Summary: For about 1 million active users and 150 million stored activities, I keep it simple: Use a relational database for storage of unique activities (1 record per activity / “thing that happened”) Make the records as compact as you can. Structure so that you can quickly grab a batch of activities by activity ID … Read more
What’s the best manner of implementing a social activity stream? [closed]
I have created such system and I took this approach: Database table with the following columns: id, userId, type, data, time. userId is the user who generated the activity type is the type of the activity (i.e. Wrote blog post, added photo, commented on user’s photo) data is a serialized object with meta-data for the … Read more