Java Community | Help. Code. Learn.•2y ago

Login/register 308 error

I have a web app + database hosted in python which I have tested and works for creating, logging in and logging out user. Now I'm trying to make the requests in my android application written in java. However, I keep getting 308 error. Here is my RegisterActivity.java

private void register() {
        // Get headers, method and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final int method = Request.Method.POST;
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,
                response    -> System.out.println("Success! Response: " + response),
                error       -> System.out.println("Error with request: " + error.getMessage());

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);

private void register() {
        // Get headers, method and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final int method = Request.Method.POST;
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,
                response    -> System.out.println("Success! Response: " + response),
                error       -> System.out.println("Error with request: " + error.getMessage());

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);

and this is the most important part of GsonRequest which should parse JSON into string:

public class GsonRequest extends Request<String> {
    private final Map<String, String> headers;
    private final Response.Listener<String> listener;

    public GsonRequest(int method, String url, Map<String, String> headers,
                             Response.Listener<String> listener, Response.ErrorListener errorListener) {
        super(method, url, errorListener);
        this.headers = headers;
        this.listener = listener;
    }

public class GsonRequest extends Request<String> {
    private final Map<String, String> headers;
    private final Response.Listener<String> listener;

    public GsonRequest(int method, String url, Map<String, String> headers,
                             Response.Listener<String> listener, Response.ErrorListener errorListener) {
        super(method, url, errorListener);
        this.headers = headers;
        this.listener = listener;
    }

Any help is appreciated!

27 Replies

JavaBot•2y ago

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Unknown User•2y ago

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ErkyOP•2y ago

D/Volley: [16199] NetworkUtility.logSlowRequests: HTTP response for request=<[ ] https://tddd80-app-joneri.azurewebsites.net/user 0xce2c15ac NORMAL 1> [lifetime=5143], [size=283], [rc=308], [retryCount=1]
E/Volley: [16199] NetworkUtility.shouldRetryException: Unexpected response code 308 for https://tddd80-app-joneri.azurewebsites.net/user

D/Volley: [16199] NetworkUtility.logSlowRequests: HTTP response for request=<[ ] https://tddd80-app-joneri.azurewebsites.net/user 0xce2c15ac NORMAL 1> [lifetime=5143], [size=283], [rc=308], [retryCount=1]
E/Volley: [16199] NetworkUtility.shouldRetryException: Unexpected response code 308 for https://tddd80-app-joneri.azurewebsites.net/user

Unknown User•2y ago

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ErkyOP•2y ago

dont think so

#   Create user
@app.route('/user/', methods=['POST'])
def create_user():
    # Get the data from the database
    data        = request.get_json()
    username    = data['username']
    password    = data['password']
    
    # Handle already existing user
    user_already_exists = User.query.filter_by(username=username).first()
    if user_already_exists is not None:
        return jsonify(response='Error: User already exists'),409
    
    # Generate password hash and add it to a new user
    new_user = User(username=username)
    new_user.generate_password_hash(password)
    
    # Add the new user to the database
    db.session.add(new_user) 
    db.session.commit()
    
    # Return value
    return jsonify(response='Successfully created a new user'), 200

Unknown User•2y ago

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ErkyOP•2y ago

yeah, maybe i can set it to follow redirects?

Unknown User•2y ago

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ErkyOP•2y ago

how

Unknown User•2y ago

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ErkyOP•2y ago

in python im using flask to send requests i think, and then im using volley to post requests, and then gson library to convert but not sure, something in volley i think, sorry not 100% sure

Unknown User•2y ago

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ErkyOP•2y ago

i dont see what changed?

Unknown User•2y ago

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ErkyOP•2y ago

E/Volley: [16230] NetworkUtility.shouldRetryException: Unexpected response code 400 for https://tddd80-app-joneri.azurewebsites.net/user/

now got this error

Unknown User•2y ago

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ErkyOP•2y ago

unfortunately dont think i can do that, i think my friend is hosting the web app why's that?

Unknown User•2y ago

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ErkyOP•2y ago

ohh I see at userObject or? not seeing headers

Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,

Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,

because its still going into error -> im going here response -> not here

Unknown User•2y ago

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ErkyOP•2y ago

yes , but userObject is a Map with <string> <string> which should take in username and password, but i dont get how i can modify so i get the "headers" i have the strings user pass which i want to pass as headers into my gsonrequest

// Get headers, method and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,
                response    -> System.out.println("Success! Response: " + response),
                error       -> System.out.println("Error: " + error.getMessage()));

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);

// Get headers, method and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        // Create request
        GsonRequest request = new GsonRequest(Request.Method.POST, url, userObject,
                response    -> System.out.println("Success! Response: " + response),
                error       -> System.out.println("Error: " + error.getMessage()));

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);

Unknown User•2y ago

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ErkyOP•2y ago

how can i post json body data?

Unknown User•2y ago

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ErkyOP•2y ago

is it possible to post the user and pass strings as parameters in my request? so I should make a StringRequest instead? tried what you suggested and now got 500 error,

// Get headers and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        StringRequest request = new StringRequest(Request.Method.POST, url,
                response -> {
                    System.out.println("some success!!!");
                },
                (Response.ErrorListener) error -> {
                    System.out.println("some error!!!");
                }) {
            @Override
            public byte[] getBody() {
                JSONObject json = new JSONObject();
                try {
                    json.put("username", user);
                    json.put("password", pass);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                return json.toString().getBytes();
            }
            @Override
            public Map<String, String> getHeaders() {
                Map<String, String> headers = new HashMap<>();
                headers.put("Content-Type","application/json");
                return headers;
            }
            @Override
            public String getBodyContentType() {
                return "application/json";
            }
        };

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);


E/Volley: [16370] NetworkUtility.shouldRetryException: Unexpected response code 500 for https://tddd80-app-joneri.azurewebsites.net/user/
I/System.out: some error!!!

// Get headers and url to be used in the request
        final String user = username.getText().toString();
        final String pass = password.getText().toString();
        Map<String, String> userObject = new HashMap<>();
        userObject.put("username", user);
        userObject.put("password", pass);
        final String url = "https://tddd80-app-joneri.azurewebsites.net/user/";

        StringRequest request = new StringRequest(Request.Method.POST, url,
                response -> {
                    System.out.println("some success!!!");
                },
                (Response.ErrorListener) error -> {
                    System.out.println("some error!!!");
                }) {
            @Override
            public byte[] getBody() {
                JSONObject json = new JSONObject();
                try {
                    json.put("username", user);
                    json.put("password", pass);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                return json.toString().getBytes();
            }
            @Override
            public Map<String, String> getHeaders() {
                Map<String, String> headers = new HashMap<>();
                headers.put("Content-Type","application/json");
                return headers;
            }
            @Override
            public String getBodyContentType() {
                return "application/json";
            }
        };

        // Add the request to the Volley request queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(request);


E/Volley: [16370] NetworkUtility.shouldRetryException: Unexpected response code 500 for https://tddd80-app-joneri.azurewebsites.net/user/
I/System.out: some error!!!

oh wait i think i got it to work! thank you man 🙂

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Login/register 308 error

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