Our great sponsors
-
-
-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
To get data that will confirm or rebuff my predictions, I decided to connect to Hacker News API, made with Firebase, collect new data in real-time, and use Memgraph to save top stories and run PangeRank algorithm to find story gems. Once I could get the data, I wanted to live stream all the top stories because I’ve never worked with streams, so I thought it would be fun. The API endpoint provides only an array of IDs of the 500 top stories, but I needed only the first 35. I wanted to showcase users who wrote those first 35 stories and all the other stories those users wrote. I had to get every single one of those stories by their IDs. Fortunately, the comments on the story were also bundled up in that data, so I didn’t have to send more GET requests. Since I wanted my application to be real-time, I decided to use Kafka. So my Firebase service was a producer for Kafka.
I needed an algorithm to calculate the users’ scores. PageRank came to my mind and it worked great. Memgraph has PageRank already implemented, so I could easily use it. Next, I had to make the backend and the frontend part of the application. On the backend, I used Fast API and on the frontend, I used Material UI with the new graph visualization library Orb.