Slow-Client

This is a http client program which can be used with another program that requires a (simple) client implementation to call an API.

Feel free to give any feedback.

How to use (Option 1):-

1. Create an instance of HttpClient or HttpsClient class and assign it to Client class.
2. The setter methods can be chained to the Client object.
3. Call the request() method of the client object to make the request and get the response.

Client client = new HttpClient("www.google.com").setMethod("GET");
Response response = client.request();
System.out.println(response.getText());

Note:-

1. If the HTTP method is not set, then GET method will be used by default.
2. Auto redirect is still not implemented.

How to use (Option 2):-

1. GET request:

Response response = SimpleClient.get("url").request();

2. GET request with some headers:

Response response = SimpleClient.get("url")
		.setHeader(headersMap) // to all the headers at once
		.addHeader(key, value) // headers can be added one by one
		.request();

3. POST request:

Response response = SimpleClient.post("url", body).request();

4. Any other methods:

Response response = SimpleClient.request(method, url)
		.keepConnectionOpen(false)
		.followRedirect(false)
		.setMethod("POST")
		.setPath("/")
		.setBody(new byte[0])
		.connectionTimeout(Duration.ofSeconds(10))
		.request();

Examples:-

public class Main
{
	public static void main(String[] args) throws IOException
	{
		System.out.println("API 1: GET using SimpleClient");
		Response response1 = SimpleClient.get("https://www.google.com").request();
		System.out.println(response1.getStatusCode() + ": " + response1.getStatusText());
		System.out.println(response1.getText());

		System.out.println("API 2: POST using SimpleClient");
		Response response2 = SimpleClient.post("http://calapi.inadiutorium.cz/api/v0/en/calendars", "This is http body".getBytes(StandardCharsets.UTF_8)).request();
		System.out.println(response2.getStatusCode() + ": " + response2.getStatusText());
		System.out.println(response2.getText());

		System.out.println("API 3: POST using SimpleClient without body");
		Response response3 = SimpleClient.post("", null).request();
		System.out.println(response3.getStatusCode() + ": " + response3.getStatusText());
		System.out.println(response3.getText());

		System.out.println("API 4: GET using HttpClient with one header");
		Response response4 = new HttpClient("ip address / host name")
				.addHeader("Host", "host name") // adding host to the header is mandatory as per the http specification
				.request();
		System.out.println(response4.getStatusCode() + ": " + response4.getStatusText());
		System.out.println(new String(response4.getBody()));

		System.out.println("API 5: POST using HttpsClient with all parameters");
		Response response5 = new HttpsClient("ip address / host", 443)
				.keepConnectionOpen(false)
				.followRedirects(false)
				.setMethod("POST")
				.setPath("/")
				.setParameters(new HashMap<>()) // to add all the parameters at once
				.addParameter("key", "value") // parameters can be added one by one
				.setHeader(new HashMap<>()) // to all the headers at once
				.addHeader("key", "value") // headers can be added one by one
				.setBody(new byte[0])
				.connectionTimeout(Duration.ofSeconds(20))
				.request();
		System.out.println(response5.getVersion() + " " + response5.getStatusCode() + ": " + response5.getStatusText());
		response5.getHeaders().forEach((String key, String value) -> System.out.println(key + ": " + value));
		System.out.println(response5.getText());
	}
}