Data Science MasterClass (September) | 4 seats left

Design a Search Autocomplete System

Design a Search Autocomplete System

Understanding the Problem

What is a Search Autocomplete System?

📦Product definition
A system that returns the top 5-10 ranked query suggestions matching the user's current prefix as they type into a search box, updating with each keystroke.

You've used this a thousand times. You start typing "how to" into Google and before you finish, a dropdown appears with "how to tie a tie," "how to screenshot on mac," "how to lose weight." That dropdown is the system we're designing. Not the search engine behind it. Not the results page. Just the fast, flickering list of suggestions that appears while your fingers are still moving.

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