For years, I used RestTemplate because it was simple and “just worked.”

But over time, it started getting in the way:

• Too much boilerplate
• Messy error handling
• Harder to read and maintain

So I finally switched to RestClient in Spring Boot 4…

And honestly — it wasn’t just a small upgrade.

Here’s what actually changed 👇

✅ Cleaner, more readable code
✅ Fluent API that feels natural
✅ Better error handling without clutter
✅ Less mental overhead while writing APIs

Example:

Old way (RestTemplate):

RestTemplate restTemplate = new RestTemplate();
User user = restTemplate.getForObject("/users/1", User.class);

New way (RestClient):

RestClient restClient = RestClient.create();
User user = restClient.get()
        .uri("/users/1")
        .retrieve()
        .body(User.class);

👉 It’s not just shorter — it’s easier to reason about.

But here’s the honest part:
Not everything changed.

• If you're using reactive flows → WebClient still wins
• Migration isn’t urgent for stable projects

Still, for most synchronous REST calls…
RestClient just feels right.

I wrote a detailed breakdown with real examples:

👉 https://medium.com/@pramod.er90/simplifying-rest-calls-in-spring-boot-4-with-restclient-5ffe5ad3ac23

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