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package co.enoobong.rotimiphotography.backend; | |
import org.json.JSONException; | |
import org.json.JSONObject; | |
import java.io.BufferedReader; | |
import java.io.BufferedWriter; | |
import java.io.IOException; | |
import java.io.InputStreamReader; | |
import java.io.OutputStream; | |
import java.io.OutputStreamWriter; | |
import java.io.Reader; | |
import java.io.UnsupportedEncodingException; | |
import java.net.HttpURLConnection; | |
import java.net.URL; | |
import java.net.URLEncoder; | |
import java.util.Map; | |
import java.util.logging.Logger; | |
import javax.annotation.Nonnull; | |
import javax.servlet.http.HttpServlet; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
import javax.xml.bind.DatatypeConverter; | |
import static com.google.api.client.http.HttpMethods.POST; | |
import static org.apache.http.HttpHeaders.AUTHORIZATION; | |
import static org.apache.http.HttpHeaders.CONTENT_TYPE; | |
public class VerifyToken extends HttpServlet { | |
private static final String API_KEY = "test_pr_d6c3cb5a5b7944e1ad5bc1164f853449" + ":"; | |
private static final Logger log = Logger.getLogger(VerifyToken.class.getName()); | |
@Override | |
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException { | |
resp.setContentType("text/plain"); | |
String token = req.getParameter("token"); | |
String price = req.getParameter("price"); | |
String currency = req.getParameter("currency"); | |
try{ | |
//Build name data request params | |
JSONObject jsonRequest = new JSONObject(); | |
jsonRequest.put("token", token); | |
jsonRequest.put("amount", Integer.parseInt(price)); | |
jsonRequest.put("amount_currency", currency); | |
log.info(jsonRequest.toString()); | |
//Prepare and Execute HTTP Post | |
URL url = new URL("https://api.simplepay.ng/v1/payments/verify"); | |
String basicAuth = "Basic " + DatatypeConverter.printBase64Binary(API_KEY.getBytes()); | |
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection(); | |
httpURLConnection.setRequestMethod(POST); | |
httpURLConnection.setRequestProperty(AUTHORIZATION, basicAuth); | |
httpURLConnection.setRequestProperty(CONTENT_TYPE, "application/json"); | |
httpURLConnection.setUseCaches(false); | |
httpURLConnection.setDoInput(true); | |
httpURLConnection.setDoOutput(true); | |
OutputStream outputStream = httpURLConnection.getOutputStream(); | |
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8")); | |
writer.write(jsonRequest.toString()); | |
writer.flush(); | |
writer.close(); | |
outputStream.close(); | |
httpURLConnection.connect(); | |
//Read response | |
int statusCode =httpURLConnection.getResponseCode(); | |
BufferedReader reader = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream())); | |
JSONObject jsonResponse = readJsonFromReader(reader); | |
log.info(jsonResponse.toString()); | |
int responseCode = jsonResponse.getInt("response_code"); | |
//Verify transaction | |
if (statusCode == HttpURLConnection.HTTP_OK) { | |
if(responseCode == 20000){ | |
//Transaction successful do something | |
resp.getWriter().println("Transaction Successful"); | |
} else { | |
//transaction failed | |
resp.getWriter().println("Transaction unsuccessful " + responseCode); | |
} | |
} else { | |
//transaction failed | |
resp.getWriter().println("Transaction unsuccessful " + responseCode); | |
} | |
} catch (Exception e) { | |
resp.getWriter().println(e.getMessage()); | |
System.err.println(e.getMessage()); | |
} | |
} | |
private JSONObject readJsonFromReader(Reader reader) throws IOException, JSONException { | |
try{ | |
StringBuilder sb = new StringBuilder(); | |
int cp; | |
while ((cp = reader.read()) != -1) { | |
sb.append((char) cp); | |
} | |
String jsonText = sb.toString(); | |
return new JSONObject(jsonText); | |
} finally { | |
reader.close(); | |
} | |
} | |
} |
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