I am attempting to consume a REST API with an Android app I am developing in Android Studio. I have developed the API using Spring Boot.
The issue:
Whenever I make a call to my API I am always returned a 401 Unauthorized response. "Pre-authenticated entry point called. Rejecting access."
I have configured my CORS as follows:
cors:
allowed-origins: "*"
allowed-methods: GET, PUT, POST, DELETE, OPTIONS
allowed-headers: "*"
exposed-headers:
allow-credentials: true
max-age: 1800
My api is running on localhost:8080, and I am making the requests from my device with my WLAN IPv4 address.
Such as: curl -v -X GET http://192.168.1.xx:8080/api/users
This returns a 200 OK response.
I am also able to call this in postman/DHC etc.. and receive a 200 OK response.
However, when I call this same address with HttpURLConnection through my android device, I receive a 401 response.
Noob developer here - any ideas as to what might be causing this would be greatly appreciated!
Edit to include my GET Request:
@Override
protected String doInBackground(String... params){
String stringUrl = params[0];
String result;
String inputLine;
try {
//Create a URL object holding our url
URL myUrl = new URL(stringUrl);
//Create a connection
HttpURLConnection connect =(HttpURLConnection)
myUrl.openConnection();
connect.setRequestMethod(REQUEST_METHOD); // GET
connect.setRequestProperty("Host", HOST);
connect.setRequestProperty("Connection", "keep-alive");
connect.setRequestProperty("Origin", ORIGIN);
connect.setRequestProperty("User-Agent", System.getProperty("http.agent"));
connect.setRequestProperty("Content-Type", CONTENT_TYPE);
connect.setRequestProperty("Accept", "*/*");
connect.setRequestProperty("Accept-Encoding", ACCEPT_ENCODING);
connect.setRequestProperty("Accept-Language", ACCEPT_LANGUAGE);
connect.setDoOutput(true);
connect.setDoInput(true);
//Connect to our url
connect.connect();
String responseMessage = connect.getResponseMessage(); // Unathorized
int responseCode = connect.getResponseCode(); //401
//Create a new InputStreamReader
InputStreamReader streamReader = new
InputStreamReader(connect.getInputStream());
//Create a new buffered reader and String Builder
BufferedReader reader = new BufferedReader(streamReader);
StringBuilder stringBuilder = new StringBuilder();
//Check if the line we are reading is not null
while((inputLine = reader.readLine()) != null){
stringBuilder.append(inputLine);
}
//Close our InputStream and Buffered reader
reader.close();
streamReader.close();
//Set our result equal to our stringBuilder
result = stringBuilder.toString();
}
catch(IOException e){
e.printStackTrace();
result = null;
}
return result;
}
