2022-12-16
2145
#rust
Andre Bogus
148572
104
Dec 16, 2022 â‹… 7 min read

How to build a Rust API with the builder pattern

Andre Bogus Andre "llogiq" Bogus is a Rust contributor and Clippy maintainer. A musician-turned-programmer, he has worked in many fields, from voice acting and teaching, to programming and managing software projects. He enjoys learning new things and telling others about them.

Recent posts:

i tried kiro and here is what i learned

I tried out Kiro: Here’s what I learned

Check out Kiro, AWS’s AI-powered IDE, see what makes it different from other AI coding tools, and explore whether it lives up to the hype.

Elijah Asaolu
Aug 28, 2025 â‹… 5 min read
Go Design Pattern Article Image With Logo

Why Go design patterns still matter

Here’s how three design patterns solved our Go microservices scaling problems without sacrificing simplicity.

Peter Aideloje
Aug 28, 2025 â‹… 2 min read
how to protect your ai agent from prompt injection attacks

How to protect your AI agent from prompt injection attacks

Explore six principled design patterns (with real-world examples) to help you protect your LLM agents from prompt injection attacks.

Rosario De Chiara
Aug 27, 2025 â‹… 5 min read
Don’t Let AI Erase The Next Generation Of Dev Leaders

Don’t let AI erase the next generation of dev leaders

As AI tools take over more routine coding work, some companies are cutting early-career dev roles — a short-sighted move that could quietly erode the next generation of tech leaders if we aren’t careful.

Jack Herrington
Aug 26, 2025 â‹… 6 min read
View all posts

2 Replies to "How to build a Rust API with the builder pattern"

  1. The build patterns are awkward because of the borrow checker, the complexity is obvious from articles like this. So my conclusion is actually that optional named parameters are very much needed in Rust to alleviate the creation of objects with a less heavy solution that is more efficient, easier to read and that doesn’t require the creation of intermediate objects.

    Another alternative is to make functions and methods optionally pass ownership, only if the function/method output is assigned to a variable.

  2. I disagree. First, often you can get away with having one or two methods or a plain struct to work with. The builder just ensures a nice and flexible interface while keeping open the door to later changes. Also the complexity cost is mostly paid by libraries which are usually meant to be reused, thus amortizing the investment.

Leave a Reply