Can you list the main types of HTTP requests used when interacting with web services?

Main types of HTTP requests used when interacting with web services:

• GET — request to retrieve data from the server.
• POST — send data to the server to create a new resource.
• PUT — update an existing resource on the server.
• DELETE — delete a resource on the server.
• PATCH — partial update of a resource.
• HEAD — retrieve only the response headers without the body.

Example of usage in C# with HttpClient:

using var client = new HttpClient();
var response = await client.GetAsync("https://api.example.com/data");
string content = await response.Content.ReadAsStringAsync();