In Redis, everything begins with a key. A key is more than just a string that points to a value. It defines how your data is organized, retrieved, and queried. A well-designed key structure makes it easier to group related records, filter by attributes, and scale queries as datasets grow. On the other hand, poor key design can lead to inefficient lookups, expensive scans, and unnecessary complexity in your application logic.
In this guide, we’ll explore different strategies for designing Redis keys using a hotel dataset. You’ll see how simple naming conventions, sets, and sorted sets can shape how data is grouped and retrieved, and when it makes sense to move toward Redis modules like RediSearch for more complex querying.