From 455c831b059780b560dae661c9dc726119463995 Mon Sep 17 00:00:00 2001
From: Upendra Chintala <upendra.chintala@gmail.com>
Date: Fri, 1 Mar 2019 00:32:41 +0530
Subject: [PATCH] An example program to make JSON Post request with
 HttpURLConnection (#6415)

* An example program to make JSON Post request with HttpURLConnection

* Made few changes for better readability
---
 .../PostJSONWithHttpURLConnection.java        | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 core-java/src/main/java/com/baeldung/urlconnection/PostJSONWithHttpURLConnection.java

diff --git a/core-java/src/main/java/com/baeldung/urlconnection/PostJSONWithHttpURLConnection.java b/core-java/src/main/java/com/baeldung/urlconnection/PostJSONWithHttpURLConnection.java
new file mode 100644
index 0000000000..38b4a0411d
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/urlconnection/PostJSONWithHttpURLConnection.java
@@ -0,0 +1,46 @@
+package com.baeldung.urlconnection;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class PostJSONWithHttpURLConnection {
+	
+	public static void main (String []args) throws IOException{
+		//Change the URL with any other publicly accessible POST resource, which accepts JSON request body
+		URL url = new URL ("https://reqres.in/api/users");
+		
+		HttpURLConnection con = (HttpURLConnection)url.openConnection();
+		con.setRequestMethod("POST");
+		
+		con.setRequestProperty("Content-Type", "application/json; utf-8");
+		con.setRequestProperty("Accept", "application/json");
+		
+		con.setDoOutput(true);
+		
+		//JSON String need to be constructed for the specific resource. 
+		//We may construct complex JSON using any third-party JSON libraries such as jackson or org.json
+		String jsonInputString = "{\"name\": \"Upendra\", \"job\": \"Programmer\"}";
+		
+		try(OutputStream os = con.getOutputStream()){
+			byte[] input = jsonInputString.getBytes("utf-8");
+			os.write(input, 0, input.length);			
+		}
+
+		int code = con.getResponseCode();
+		System.out.println(code);
+		
+		try(BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "utf-8"))){
+			StringBuilder response = new StringBuilder();
+			String responseLine = null;
+			while ((responseLine = br.readLine()) != null) {
+				response.append(responseLine.trim());
+			}
+			System.out.println(response.toString());
+		}
+	}
+
+}