What is OkHttp?

OkHttp stands out as an HTTP client that prioritizes efficiency by default:

• HTTP/2 Support: Allows multiple requests to the same host to share a socket, enhancing performance.
• Connection Pooling: Reduces latency for requests, particularly beneficial in scenarios where HTTP/2 is not available.
• Transparent GZIP: Compresses download sizes seamlessly through GZIP, contributing to optimized data transfer.
• Response Caching: Bypasses the network for repeat requests, improving efficiency.
• Resilience: OkHttp adeptly manages challenging network conditions, silently recovering from common connection issues. It intelligently attempts alternate addresses if the initial connection fails, crucial for IPv4+IPv6 and services in redundant data centers.
• Modern TLS Support: OkHttp is equipped with contemporary TLS features, including TLS 1.3, ALPN, and certificate pinning. It offers configuration options for versatile connectivity.

Using OkHttp is straightforward. Its request/response API employs fluent builders and immutability, facilitating ease of use. Whether you prefer synchronous blocking calls or asynchronous calls with callbacks, OkHttp accommodates both styles seamlessly.

OkHttp is pretty smart when it comes to dealing with tricky network situations. It quietly bounces back from common connection hiccups and even tries different addresses if the first attempt doesn’t work. This becomes crucial when you’re dealing with situations that use both IPv4 and IPv6 or when your services are set up in backup data centers. In this article, you are going to explore how you can use OkHttp in your Spring Boot application.

Prerequisites:

• You should have basic knowledge of developing Spring Boot Applications.
• You should know – How to write Controller and Services in Spring Boot Application.
• You should have basic knowledge of RESTFull APIs.
• You should have basic knowledge of HTTP Methods like GET/POST/PUT etc.