Develop Reference

Upload an attachment to azure devops [REST API]

I'm having a hard time adding a attachments in my azure devops repo via api...
public static void putAttachments(Integer id) {
try {
URL url = new URL(
"https://dev.azure.com/marcoparra0034/AgileFr/_apis/wit/attachments?api-version=5.1&fileName=imageAs.png");
HttpURLConnection con = ResApiMain.apiConnectionAttachments(PAT, url);
File file = new File("C:\\Users\\marco.parra\\Pictures\\Screenshots\\new.png");
String base64Image = encodeFileToBase64Binary(file);
// String jsonInputString = "[{\"op\":\"add\",\"path\":\"/fields/System.Title\",\"value\":\"" + "tpain"
// + "\"}]";
base64Image = "[" + base64Image + "]";
System.out.println("Base xs" + base64Image);
try (OutputStream os = con.getOutputStream()) {
byte[] input = Base64.decodeBase64(base64Image.getBytes("utf-8"));
System.out.println(new String(input));
os.write(input, 0, input.length);
} catch (Exception ex) {
System.out.println(ex.getMessage());
}
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());
} catch (Exception ex) {
System.out.println(ex.getMessage());
}
con.disconnect();
} catch (Exception ex) {
}
This is the connection method
public static HttpURLConnection apiConnectionAttachments(String PAT, URL url) {
HttpURLConnection con = null;
try {
String AuthStr = ":" + PAT;
Base64 base64 = new Base64();
String encodedPAT = new String(base64.encode(AuthStr.getBytes()));
con = (HttpURLConnection) url.openConnection();
con.setRequestProperty("Authorization", "Basic " + encodedPAT);
con.setDoOutput(true);
System.out.println("URL - " + url.toString());
System.out.println("PAT - " + encodedPAT);
// Image Requierements
// con.setRequestProperty("Content-Type", "image/jpeg");
con.setDoInput(true);
con.setUseCaches(false);
con.setRequestProperty("X-HTTP-Method-Override", "PATCH");
con.setRequestMethod("POST");
con.setRequestProperty("Content-Type", "application/octet-stream");
// con.setRequestProperty("Accept", "application/json");
} catch (Exception e) {
System.out.println(e.getMessage());
}
return con;
}
When i run this it show the next error code
Server returned HTTP response code: 405 for URL: https://dev.azure.com/marcoparra0034/AgileFr/_apis/wit/attachments?api-version=5.1&fileName=imageAs.png
Update i see how to work with python and c# but i can´t follow this logic to create an attachment
https://github.com/Microsoft/azure-devops-python-api/blob/1bacd2a3f0128a6d184cf75e2c6f8859d46f270a/vsts/vsts/work_item_tracking/v4_1/work_item_tracking_client.py#L56
Expectations Example
{
"id": "a5cedde4-2dd5-4fcf-befe-fd0977dd3433",
"url": "https://dev.azure.com/fabrikam/_apis/wit/attachments/a5cedde4-2dd5-4fcf-befe-fd0977dd3433?fileName=imageAsFileAttachment.png"
}
https://learn.microsoft.com/en-us/rest/api/azure/devops/wit/attachments/create?view=azure-devops-rest-5.1
Any help would be appreciated....

I solve this issue commenting line con.setRequestProperty("X-HTTP-Method-Override", "PATCH");

Android HttpURLConnection is not working on 3G but works on WiFi

My application sends data to server and get data from it. The application successfully executes on WiFi, but it fails on 3G. Its exception is network problem and sometimes server timeout. It does not give response code when I try to log it.
The server code is prepared using REST API.
Here is the java code:
#Override
protected String doInBackground(String... params) {
String lastOduuFk = "new";
String oduuLang = "new";
String ROOT_WEB = "http://www.example.com/";
String updateTaateeUrl = ROOT_WEB + "v1/loadOduu?lastOduuFk=" + lastOduuFk + "&lang=" + oduuLang;
BufferedReader bufferedReader = null;
HttpURLConnection httpURLConnection = null;
URL url = null;
String api_val = "xxxxxxxxxxxxx";
String mainInfo = null;
try {
url = new URL(updateTaateeUrl);
Log.i(TAG, "Try this url");
httpURLConnection = (HttpURLConnection) url.openConnection();
//Property of the connection
httpURLConnection.setDoInput(true);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Authorization", api_val);
httpURLConnection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 5.1; rv:19.0) Gecko/20100101 Firefox/45.0");
httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
httpURLConnection.setConnectTimeout(30000);
httpURLConnection.setReadTimeout(30000);
httpURLConnection.connect();
int reponse = httpURLConnection.getResponseCode();
Log.i(TAG, "first_Req_res: " + reponse);
InputStream inputStream = httpURLConnection.getInputStream();
bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "iso-8859-1"));
String result = "";
String line;
while ((line = bufferedReader.readLine()) != null) {
result += line;
}
mainInfo = result;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (SocketTimeoutException connTimeout) {
this.socketTimedOut = true;
} catch (IOException e) {
e.printStackTrace();
this.netWorkProblem = true;
} finally {
if (httpURLConnection != null) {
httpURLConnection.disconnect();
}
try {
if (bufferedReader != null) {
bufferedReader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return mainInfo;
}
The codes runs well when the phone is connected to WiFi connection. But on 3G it does not work. When I open the link with the phone browser it opens successfully on 3G.
Even it does not log Log.i(TAG, "first_Req_res: " + reponse);
I have tried to change its user-agent to httpURLConnection.setRequestProperty("User-Agent", ""); , but did change any thing. I have also tried to increase its connection and read timeout time. The method just keeps putting out null.
It log looks like thi
................
08-14 16:17:43.092 14882-16108/xyz.natol.kubbaa I/xyz.natol.kubbaa: Try this url
08-14 16:18:52.420 14882-14882/xyz.natol.kubbaa I/xyz.natol.kubbaa: first_Req_result: null
08-14 16:18:55.923 14882-14882/xyz.natol.kubbaa D/InputMethodManager: windowDismissed mLockisused = false
........................
What shall I do to make it work on 3G?

How can i connect to my MySQL database with an android app?

i am trying to do an android app to write some datas on MySQL database but it does not work i did a Java class for this and i think the problem comes from this. Here is my code :
public class BackgroundTask extends AsyncTask<String, Void, String> {
Context ctx;
BackgroundTask(Context ctx) {this.ctx = ctx;}
#Override
protected String doInBackground(String... params) {
String reg_url = "http://localhost:8080/project/register.php";
String method = params[0];
if (method.equals("register")) {
String name = params[1];
String password = params[2];
String contact = params[3];
String country = params[4];
try {
URL url = new URL(reg_url);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setDoOutput(true);
OutputStream os = httpURLConnection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
String data = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode(name, "UTF-8") + "&" +
URLEncoder.encode("password", "UTF-8") + "=" + URLEncoder.encode(password, "UTF-8") + "&" +
URLEncoder.encode("contact", "UTF-8") + "=" + URLEncoder.encode(contact, "UTF-8") + "&" +
URLEncoder.encode("country", "UTF-8") + "=" + URLEncoder.encode(country, "UTF-8");
bufferedWriter.write(data);
bufferedWriter.flush();
bufferedWriter.close();
os.close();
InputStream IS = httpURLConnection.getInputStream();
IS.close();
return "Registration success";
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return null;
}
#Override
protected void onPostExecute(String result) {
Toast.makeText(ctx, result, Toast.LENGTH_LONG).show();
}
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected void onProgressUpdate(Void... values) {
super.onProgressUpdate(values);
}
}
Actually what i would like is to save name, password, contact and country in my database. The problem is this : "Registration success" is never returned it is always null. But i don't know why. When i try to compile it looks like there is no errors and i can see the app.
Thank you very much for your help !
Edit : This is the register.php :
<?php
require "init.php";
$u_name=$_POST["name"];
$u_password=$_POST["password"];
$u_contact=$_POST["contact"]";
$u_country=$_POST["country"];
$sql_query="insert into users values('$u_name', '$u_password', '$u_contact', '$u_country');";
//mysqli_query($connection, $sql_query));
if(mysqli_query($connection,$sql_query))
{
//echo "data inserted";
}
else{
//echo "error";
}
?>
And also the init.php :
<?php
$db_name = "project";
$mysql_user = "root";
$server_name = "localhost";
$connection = mysqli_connect($server_name, $mysql_user, "", $db_name);
if(!$connection){
echo "Connection not successful";
}
else{
echo "Connection successful";
}
?>
Thank you for your help !

My class PutUtility for getData(), PostData, DeleteData(). you just need to change package name
package fourever.amaze.mics;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
public class PutUtility {
private Map<String, String> params = new HashMap<>();
private static HttpURLConnection httpConnection;
private static BufferedReader reader;
private static String Content;
private StringBuffer sb1;
private StringBuffer response;
public void setParams(Map<String, String> params) {
this.params = params;
}
public void setParam(String key, String value) {
params.put(key, value);
}
public String getData(String Url) {
StringBuilder sb = new StringBuilder();
try {
// Defined URL where to send data
URL url = new URL(Url);
URLConnection conn = null;
conn = url.openConnection();
// Send POST data request
httpConnection = (HttpURLConnection) conn;
httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
httpConnection.setRequestMethod("GET");
BufferedReader in = new BufferedReader(
new InputStreamReader(httpConnection.getInputStream()));
String inputLine;
response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (Exception ex) { }
}
return response.toString();
}
public String postData(String Url) {
StringBuilder sb = new StringBuilder();
for (String key : params.keySet()) {
String value = null;
value = params.get(key);
if (sb.length() > 0) {
sb.append("&");
}
sb.append(key + "=" + value);
}
try {
// Defined URL where to send data
URL url = new URL(Url);
URLConnection conn = null;
conn = url.openConnection();
// Send POST data request
httpConnection = (HttpURLConnection) conn;
httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
httpConnection.setRequestMethod("POST");
httpConnection.setDoInput(true);
httpConnection.setDoOutput(true);
OutputStreamWriter wr = null;
wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(sb.toString());
wr.flush();
BufferedReader in = new BufferedReader(
new InputStreamReader(httpConnection.getInputStream()));
String inputLine;
response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (Exception ex) {
}
}
return response.toString();
}
public String putData(String Url) {
StringBuilder sb = new StringBuilder();
for (String key : params.keySet()) {
String value = null;
try {
value = URLEncoder.encode(params.get(key), "UTF-8");
if (value.contains("+"))
value = value.replace("+", "%20");
//return sb.toString();
// Get the server response
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (sb.length() > 0) {
sb.append("&");
}
sb.append(key + "=" + value);
}
try {
// Defined URL where to send data
URL url = new URL(Url);
URLConnection conn = null;
conn = url.openConnection();
// Send PUT data request
httpConnection = (HttpURLConnection) conn;
httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
httpConnection.setRequestMethod("PUT");
httpConnection.setDoInput(true);
httpConnection.setDoOutput(false);
OutputStreamWriter wr = null;
wr = new OutputStreamWriter(conn.getOutputStream());
wr.write(sb.toString());
wr.flush();
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
;
String line = null;
// Read Server Response
while ((line = reader.readLine()) != null) {
// Append server response in string
sb1.append(line + " ");
}
// Append Server Response To Content String
Content = sb.toString();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (Exception ex) {
}
}
// Send PUT data request
return Url;
}
public String deleteData(String Url) {
StringBuilder sb = new StringBuilder();
for (String key : params.keySet()) {
try {
// Defined URL where to send data
URL url = new URL(Url);
URLConnection conn = null;
conn = url.openConnection();
// Send POST data request
httpConnection = (HttpURLConnection) conn;
httpConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
httpConnection.setRequestMethod("DELETE");
httpConnection.connect();
reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line = null;
// Read Server Response
while ((line = reader.readLine()) != null) {
// Append server response in string
sb1.append(line + " ");
}
// Append Server Response To Content String
Content = sb.toString();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
reader.close();
} catch (Exception ex) {
}
}
}
return Url;
}
}
And use this class like this
#Override
protected String doInBackground(String... params) {
res = null;
PutUtility put = new PutUtility();
put.setParam("ueid", params[0]);
put.setParam("firm_no", params[1]);
put.setParam("date_incorporation", params[2]);
put.setParam("business_name", params[3]);
put.setParam("block_no", params[4]);
try {
res = put.postData(
"Api URL here");
Log.v("res", res);
} catch (Exception objEx) {
objEx.printStackTrace();
}
return res;
}
#Override
protected void onPostExecute(String res) {
try {
} catch (Exception objEx) {
mProgressDialog.dismiss();
objEx.printStackTrace();
}
}
Please use this. Hope it helps you in future also.
Check this if this is the problem
$u_contact=$_POST["contact"]"
here is the problem i think so brother. replace with
$u_contact=$_POST["contact"];

Want to make perl code for oauth2 work in Java "curl -H 'Authorization: Bearer:<TOKEN> https://canvas.instructure.com/api/v1";

I am getting an error that I am unauthorized.. RESPONSE CODE 401
The token I am using works in perl..
This is what I have tried till now:
public static void main(String[] args) throws Exception {
try {
String auth = returnAuth(); //getting token from a file.
//System.out.println(auth);
String url1= "https://canvas.instructure.com/api/v1";
URL url = new URL(url1+"/courses");
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("GET");
//connection.setRequestProperty("Authorization", "Bearer " + auth);
connection.setRequestProperty("Authorization", "Bearer "+auth);
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response code:" + connection.getResponseCode());
System.out.println("Response message:" + connection.getResponseMessage());
// Read the response:
BufferedReader reader = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
StringBuffer response = new StringBuffer();
while ((line = reader.readLine()) != null) {
response.append(line);
}
reader.close();
System.out.println(response.toString());
}
catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e2) {
e2.printStackTrace();
}
}

public static void main(String[] args) throws Exception {
try {
String auth = returnAuth(); //getting token from a file.
String url1= "https://canvas.instructure.com/api/v1/courses";
URL url = new URL(url1);
HttpsURLConnection connection =(HttpsURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setRequestProperty("Authorization", "Bearer "+auth);
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response code:" + connection.getResponseCode());
System.out.println("Response message:" + connection.getResponseMessage());
// Read the response:
BufferedReader reader = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
reader.close();
}
catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e2) {
e2.printStackTrace();
}
}

You have it commented out but every Oauth server I've dealt with would be "Bearer <token>" - one space and no colon.

You set the parameters AFTER you called!
Change your code to first set the authentication, then open the connection.
String url1= "https://canvas.instructure.com/api/v1";
URL url = new URL(url1+"/courses");
connection.setRequestProperty("Authorization", "Bearer "+auth);
connection.setRequestMethod("GET");
//now you can open the connection...
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();

AJAX GET requests in Java

I'm trying to make a GET AJAX request on some site using java.
My code is the following:
String cookie = getRandomString(16); //Getting a random 32-symbol string
String url = "https://e-kassa.org/core/ajax/stations_search.php?"
+ "q=%D0%BE&limit=10&timestamp=1352028872503";
HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
conn.setRequestProperty("Cookie", "PHPSESSID=" + cookie);
InputStream is = conn.getInputStream();
int buffer;
while((buffer = is.read()) != -1)
System.out.print(buffer);
is.close();
conn.disconnect();
But the problem is that there's nothing to download from the InputStream is. But if I use my browser to do the same thing, I'll get a response, composed of text lines of the following format:
CITY_NAME|SOME_DIGITS
So, can anybody tell me, how can I make such a request in an appropriate manner?
UPD: without cookies I have the same behaviour (in the browser everything's fine, but not in Java).

Can you please try with:
BufferedReader rd = null;
try {
URL url = new URL("https://e-kassa.org/core/ajax/stations_search.php?"
+ "q=%D0%BE&limit=10&timestamp=1352028872503");
URLConnection conn = url.openConnection();
String cookie = (new RandomString(32)).nextString();
conn.setRequestProperty("Cookie", "PHPSESSID=" + cookie);
// Get the response
rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuffer sb = new StringBuffer();
String line;
while ((line = rd.readLine()) != null) {
sb.append(line);
}
System.out.println(sb.toString());
} catch (Exception e) {
e.printStackTrace();
} finally {
if (rd != null) {
try {
rd.close();
} catch (IOException e) {
}
}
}
This is peace of code that works properly in my projects. :)

Try the following thing.
HttpURLConnection connection = null;
try {
String url = "https://e-kassa.org/core/ajax/stations_search.php?"
+ "q=%D0%BE&limit=10&timestamp=1352028872503";
URL url = new URL(url);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestProperty("Cookie", "PHPSESSID=" + cookie);
connection.connect();
connection.getInputStream();
int buffer;
while((buffer = is.read()) != -1)
System.out.print(buffer);
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
if(null != connection) { connection.disconnect(); }
}