Spring RestTemplate implementation of ClientInterface

[sagarrohat]

We would like to enable monitoring and observability for the external HTTP calls made by our application. For other endpoints, we use RestTemplate, which provides these features out of the box through its seamless integration with Spring Boot Actuator and Micrometer.

Adding a ClientInterface implementation using RestTemplate would allow Spring-based applications to leverage these capabilities effortlessly, eliminating the need for additional customization.

[sagarrohat]

Or maybe a way to customize CloseableHttpClient to add Observation interceptor https://docs.micrometer.io/micrometer/reference/reference/httpcomponents.html