Is it possible to use the HTTP protocol for data exchange between different services?

Yes, HTTP protocol is widely used for data exchange between different services, especially in microservices architecture and web services. It provides a standardized way to send requests and responses, supports various methods (GET, POST, PUT, DELETE, etc.), and integrates easily with REST APIs.

Example of using HTTP for data exchange between services in Java with the HttpClient library:

HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
    .uri(URI.create("http://example.com/api/data"))
    .GET()
    .build();

HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());

Thus, HTTP is a convenient and universal protocol for service interaction.