Java Requires Chilkat v11.0.0+

Example: Http.HttpJson method - Send a POST with JSON Body

See more HTTP Examples

Demonstrates how to call the HttpJson method, which sends an HTTP POST with a JSON body. This example sends the following request:

POST /echo_request_body.asp HTTP/1.1
Host: chilkatsoft.com
Accept: */*
Accept-Encoding: gzip
Content-Type: application/json
Content-Length: 26

{"greeting":"Hello World"}

Also see: Chilkat Http Default and Auto-Filled Headers

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        boolean success = false;

        Http http = new Http();
        success = false;

        JsonObject json = new JsonObject();

        // Build the following JSON:  {"greeting":"Hello World"}
        json.updateString("greeting", "Hello World");

        // This URL echoes the contents of the request body, letting us view it.
        String url = "https://chilkatsoft.com/echo_request_body.asp";

        // Send a POST with the JSON in the HTTP request body.
        HttpResponse resp = new HttpResponse();
        try {
            http.httpJson("POST", url, json, "application/json", resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Response Status Code: " + resp.getStatusCode());

        // Examine the request we sent.
        // The LastHeader property stores the HTTP request header of the most recent request sent,
        // and in this instance, the response body mirrors the request body.
        System.out.println(http.getLastHeader());
        System.out.println(resp.getBodyStr());

        // Output:

        // POST /echo_request_body.asp HTTP/1.1
        // Host: chilkatsoft.com
        // Accept: */*
        // Accept-Encoding: gzip
        // Content-Type: application/json
        // Content-Length: 26
        //
        // {"greeting":"Hello World"}
    }
}