I start thinking that this course is a crap.
Why the heck any redirectURL need an api_dev_key? It is supposed to be open to unregistered guests!
To redirect a short URL, the REST API’s definition will be:
redirectURL(api_dev_key, url_key)
Course: Grokking Modern System Design Interview for Engineers & Managers - Learn Interactively
Lesson: Design and Deployment of TinyURL - Grokking Modern System Design Interview for Engineers & Managers
They must check the course. I was about ask the same, I think the reason is that they based the tutorial from the tinyUrl design in the other course, and the other design is bad too. Hope they check it and fix it…
Course: Grokking Modern System Design Interview for Engineers & Managers - Learn Interactively
Lesson: Design and Deployment of TinyURL - Grokking Modern System Design Interview for Engineers & Managers
The course is maybe not that bad overall, but yeah, those api suggestions and estimate calculations are terrible. Still not fixed, by the way