Learn how to create, test, and compare the back-end HTTP services in Scala.

Become a Scala Developer

In this module, we will explore the functional aspects of Scala. We will start by looking at a small use case. We will then learn the difference between pure and impure implementations by looking into referential transparency and how functional programming relies on it. We will then gradually implement the use case in both pure and impure ways. Moving ahead, we will simultaneously build, test, and document the implementations and point out the tools required along the way. By the end of this module, we will have a substantial understanding of how these techniques work, their pros and cons, and how pure implementation can be more robust.

Pure Functional HTTP APIs in Scala

Congratulations, you have completed the “Pure Functional HTTP APIs in Scala” module.

## Summary

In this module, we looked at the functionality of HTTP APIs in Scala. We covered the pure and impure implementations and their differences in detail. Moving on, we built and tested both implementations. Finally, we compared the two methods and concluded that the pure implementation is more robust. 


## What’s next?

Now that we’re familiar with the HTTP APIs of Scala, it’s time to focus on the preparation for real-time interviews in the next module, “Decode the Coding Interview in Scala: Real-world Examples.”


Congratulations, you have completed the “Pure Functional HTTP APIs in Scala” module.

# Summary

In this module, we looked at the functionality of HTTP APIs in Scala. We covered the pure and impure implementations and their differences in detail. Moving on, we built and tested both implementations. Finally, we compared the two methods and concluded that the pure implementation is more robust. 


# What’s next?

Now that we’re familiar with the HTTP APIs of Scala, it’s time to focus on the preparation for real-time interviews in the next module, “Decode the Coding Interview in Scala: Real-world Examples.”


 Here's a quick summary of the “Pure Functional HTTP APIs in Scala” module.


Introduction

Impure Implementation

Pure Implementation

Testing Impure Services

Testing Pure Services

Benchmarks

Documentation

Conclusion

Final Remarks

Summary