Getting 400 - Bad Request Java Client

Question

I'm trying to do a request using a small Java program but I'm getting a 400 - Bad Request as response:

URI uri = new URIBuilder().setScheme("https")
                .setHost("somehost.com")
                .setPath("/API/v1/export").build();
        HttpPost post = new HttpPost(uri);
        post.setHeader("X-API-ID", "myId");
        post.setHeader("Accept", "application/json");
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("format", "csv"));
        params.add(new BasicNameValuePair("userId", "userId"));
        post.setEntity(new UrlEncodedFormEntity(params));
        JsonNode responseJson = sendResponseEngineRequest(post);

This responseJson returns the following value:

{"meta":{"httpStatus":"400 - Bad Request","error":{"errorMessage":"Invalid Content-Type. expected=application/json found=application/x-www-form-urlencoded","errorCode":"RP_0.1"}}}

Thanks in advance.

blur0224 · Accepted Answer · 2016-07-22 15:45:39Z

1

The answer is literally in the error you're getting.

You specify you will only accept post.setHeader("Accept", "application/json"); and the error is telling you that what you're requesting is found=application/x-www-form-urlencoded

If you have control over the endpoint you're requesting data, change it to application/json. If you don't change post.setHeader("Accept", "application/json"); to post.setHeader("Accept", "application/x-www-form-urlencoded");

answered Jul 22, 2016 at 15:45

blur0224

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5 Comments

Diego Nieto Over a year ago

Could you please tell me how I can request "application/json" and as well how I'm requesting "application/x-www-form-urlencoded" thats not clear for me.

blur0224 Over a year ago

Do you have control of the host you're requesting data from?

Diego Nieto Over a year ago

Well not really, is a host from a provider.

blur0224 Over a year ago

Then the content type that the URL returns cannot be changed. This means when you request it, you will not be able to get application/json data from it because that's not what it returns. The error message is saying what it's returning 'application/x-www-form-urlencoded'. You could probably clear up your error by changing application/json to application/x-www-form-urlencoded in your code.

Diego Nieto Over a year ago

Well already tried that, but I'n still getting: {"meta":{"httpStatus":"400 - Bad Request","error":{"errorMessage":"Invalid Content-Type. expected=application/json found=application/x-www-form-urlencoded","errorCode":"RP_0.1"}}}

Rocherlee · Accepted Answer · 2016-07-26 06:28:36Z

0

Since this is a POST request, you may need to provide both Accept and Content-Type headers.

Accept: What you are expecting to receive. Content-Type: What you are sending to server

post.setHeader("Accept", "application/json");
post.setHeader("Content-Type", "application/json");

edited Jul 26, 2016 at 6:28

answered Jul 26, 2016 at 6:19

Rocherlee

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Comments

ignezies · Accepted Answer · 2019-11-02 11:10:17Z

0

In my program i am also got this error and found that the link not accepting repeated values.

so please check your link It may not accept any repeated parameters which is already available in that link.

answered Nov 2, 2019 at 11:10

ignezies

1

1 Comment

David García Bodego Over a year ago

Welcome to SO! As there are additional answers, please explain yours a little bit and the Pros of yours.

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