Cloud Native Development with Google Cloud

Chapter 6. Project 2: Skill Service with Cloud Run

In Chapter 5, you used a Cloud Function to collect Stack Overflow tags from the BigQuery public dataset and store the results as an object in Cloud Storage. In this chapter, you will use these tags to develop an interactive service that offers skill suggestions to users as they type.

Note

The code for this chapter is in the skill-service folder of the GitHub repository.

Requirements

Let’s explore what’s needed for this project.

User Story

The user story for this piece of functionality is shown in Figure 6-1.

Figure 6-1. Project 2 user story

Elaborated Requirements

This project also has the following specific requirements:

• Suggestions should be presented when a user types three or more characters.

• 95% of suggestion requests should return suggestions in less than 500 ms as, anything longer than this may be perceived as slow.

• The solution should be reliable and low cost.

• The solution should scale to thousands of simultaneous requests without desegregation.

Solution

What is required here is a reliable and scalable solution for looking up skills from a list of tags. Given the relatively small size of the data and the need for rapid response times, you’ll keep this data in an in-memory trie data structure.

Summary of Services

Here is a summary of the Google Cloud services you will be using in this solution.

Cloud ...