Java tutorial
/** * */ package com.acc.util; import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import org.json.simple.parser.ParseException; /** * @author BABUJI * */ public class InstagramClient { public String getProfilePicOfUser(final String code) { String profilePic = null; // final String inputJson = "client_id=e580d04d0687403189f86d49545b69a4&client_secret=a2943297f601402d894f8d21400bdfd5&grant_type=authorization_code&redirect_uri=http://electronics.local:9001/yacceleratorstorefront/electronics/en/facerecognitionpage&code=" // + code; //String inputJson1 = "{\"Identities\": [{\"Score\": \"99.99986\",\"IdentityDetails\": {\"BiographicData\": [{\"Key\": \"Name\",\"Value\": \"Ravi\"},{\"Key\": \"ID\",\"Value\": \"DRIVING_LICENSE_ID\"}],\"BiometricDatas\": [{\"Base64Data\": \"/9j/4AAQSkZJ\",\"Modality\": \"Face_Face2D\",\"Type\": \"Image\"}],\"IdentityId\": \"BiometricDev[1:S:58840];\"}}],\"InWatchList\": false}"; // System.out.println(inputJson); // Make Web Service Call // final Client client = ClientBuilder.newClient(); // final String instagramOutputJson = client.target("https://api.instagram.com/oauth/access_token").request() // .method("POST", Entity.entity(inputJson, MediaType.APPLICATION_JSON), String.class); try { final URL url = new URL("https://api.instagram.com/oauth/access_token"); final HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setDoOutput(true); connection.setRequestMethod("POST"); final String urlParameters = "client_id=e580d04d0687403189f86d49545b69a4" + "&client_secret=a2943297f601402d894f8d21400bdfd5" + "&grant_type=authorization_code" + "&redirect_uri=http://electronics.local:9001/yacceleratorstorefront/electronics/en/facerecognitionpage" + "&code=" + code; connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); connection.setRequestProperty("charset", "utf-8"); connection.setRequestProperty("Content-Length", "" + Integer.toString(urlParameters.getBytes().length)); final DataOutputStream wr = new DataOutputStream(connection.getOutputStream()); wr.writeBytes(urlParameters); wr.flush(); wr.close(); final BufferedReader rd = new BufferedReader(new InputStreamReader(connection.getInputStream())); final StringBuffer result = new StringBuffer(); String line = ""; while ((line = rd.readLine()) != null) { result.append(line); } System.out.println(result.toString()); System.out.println("Output Json from Instagram is " + result); profilePic = processJson(result.toString()); } catch (final MalformedURLException e) { // YTODO Auto-generated catch block e.printStackTrace(); } catch (final IOException e) { // YTODO Auto-generated catch block e.printStackTrace(); } return profilePic; } private String processJson(final String instagramOutputJson) { String profilePic = null; final JSONParser instagramOutputJsonParser = new JSONParser(); try { final JSONObject instagramOutputJsonObject = (JSONObject) instagramOutputJsonParser .parse(instagramOutputJson); final JSONObject instagramUser = (JSONObject) instagramOutputJsonObject.get("user"); profilePic = (String) instagramUser.get("profile_picture"); } catch (final ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return profilePic; } }