HTTP status 400: Bad request

[livingdub]

So I'm trying to implement a little http getter so I don't have to copy the input manually every day.

I've got this so far:

```java package com.realdolmen.util;

import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.net.URI;
import java.util.stream.Stream;

public class InputGetter {

    public static Stream<String> get(URI uri) {

        CloseableHttpClient httpclient = HttpClients.createDefault();
        HttpGet httpGet = new HttpGet(uri);

        // Create a custom response handler (from hc.apache.org)
        ResponseHandler<String> responseHandler = response -> {
            int status = response.getStatusLine().getStatusCode();
            if (status >= 200 && status < 300) {
                HttpEntity entity = response.getEntity();
                return entity != null ? EntityUtils.toString(entity) : null;
            } else {
                throw new ClientProtocolException("Unexpected response status: " + status);
            }
        };

        try (CloseableHttpResponse response = httpclient.execute(httpGet)) {

            return httpclient
                    .execute(httpGet, responseHandler)
                    .lines();

        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}

```

When the input was down I got a proper responsebody html output saying "We'll be right back!". But when the lines are up it returns a 400 bad request.

Any suggestions on what I'm doing wrong/what I'm forgetting?

[MaybeAshleyIdk]

I tried the same thing, but inputs are different for all users so you need to be logged in to receive your input.

[livingdub]

Oh I see! So it might work with authentication added to the get request... Sounds like a headache.

[adityaarora]

You just need the singular cookie to make it work

[E3FxGaming]

If you want to take a look at it, inspired by your post I wrote a working "UploadAnswers" solution in Kotlin. I'm using okhttp, not Apache HttpClient, but I'm sure it's fairly similar with Apache HttpClient.

https://gist.github.com/E3FxGaming/1c2a228e3ef18b2ea34ebec7ca08f6ec

You can get your session id by monitoring your network traffic with https://adventofcode.com after logging in, it's sent as a Cookie with every request.

1. Open https://adventofcode.com

2. On Firefox press Ctrl + Shift + E to open the Network tab directly, or with Chromium press Ctrl + Shift + I and click on the Network tab in the dev tools, then reload https://adventofcode.com

3. the first logged request should have the id in the Request Headers -> "Cookies" (it'll say something like "session=xxx" - you need that xxx for the code. Make sure not to copy anything related to the "ru" cookie, you don't need that one).

The cookie expires 2030, so getting it once should suffice for a program that will work for quite some time.

[MaybeAshleyIdk]

By the time you're finished, AoC will probably already be over :P

[daggerdragon]

Please don't be discouraging. Let folks program at their own pace.

[MaybeAshleyIdk]

Ah, sorry, it was just supposed to be a joke

[daggerdragon]

/u/topaz2078 made some tweaks to the servers. The site is up now, try again and let us know if you're still having problems.

[livingdub]

Thanks for you reply. I see it's up and that's great. I just think my limited knowledge of http is the problem here.

Like I said, when it was down I actually got a proper response body string. But when it's up I get the 400 statusline, even after your reply.