How do I use RestTemplate in Spring?

How do I use RestTemplate in Spring?

RestTemplate is a synchronous client to perform HTTP requests in Spring. You can use it to consume RESTful web services.

Can you show me a simple example of making a GET request?

Sure! Here's a basic example:

RestTemplate restTemplate = new RestTemplate();
String url = "https://api.example.com/data";
ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
System.out.println(response.getBody());

What about handling errors with RestTemplate?

You can use the ResponseErrorHandler interface to handle errors. Implement it and set it on your RestTemplate instance.

Is there a way to customize the headers in the request?

Yes! You can use HttpHeaders to set custom headers and then create an HttpEntity to include them in your request.