Multipart/form-data construction with android

android, androidhttpclient, multipartform-data

Solution

So after searching high and low for an answer, and almost giving up, this link finally helped

here is the final working code:

 public HttpResponse invokeXAUTHPOSTService(String url, String token, File file) {

    client = new DefaultHttpClient();

    HttpPost request = new HttpPost(url);

    HttpResponse response = null;

    DRPContentForUpload content = new DRPContentForUpload(file);
    String jsonObject = DRPJSONConverter.toJson(content);
    String BOUNDARY= "--eriksboundry--";

    request.setHeader("Content-Type", "multipart/form-data; boundary="+BOUNDARY);
    request.addHeader("X-AUTHORIZATION",token);
    MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE,BOUNDARY,Charset.defaultCharset());
    try {


        entity.addPart("file01", new StringBody(jsonObject));

        entity.addPart("file01", new FileBody(file));

        request.addHeader("Accept-Encoding", "gzip, deflate");

    } catch (UnsupportedEncodingException e) {
        Log.v("encoding exception","E::: "+e);
        e.printStackTrace();
    }
    request.setHeader("Accept", "application/json");
    request.setHeader("Content-Type", "multipart/form-data; boundary="+BOUNDARY);
    request.setEntity(entity);

    try {




        response = client.execute(request);



    } catch (ClientProtocolException e) {

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

        e.printStackTrace();
    }


    return response;

}

Problem

I am trying to make an `HttpPost` with `multiPart/form-data` via my android app. I have a postman test that is working with my api and the preview of that request in postman, looks like this: ``` POST /api/0.1/content/upload HTTP/1.1 Host: 54.221.194.167 X-AUTHORIZATION: 166e649911ff424eb14446cf398bd7d6 Cache-Control: no-cache Postman-Token: 2412eba9-f72d-6f3b-b124-6070b5b26644 ----WebKitFormBoundaryE19zNvXGzXaLvS5C Content-Disposition: form-data; name="file01" {"mime_type":"image/jpeg","title":"IMG_20140131_111622"} ----WebKitFormBoundaryE19zNvXGzXaLvS5C Content-Disposition: form-data; name="file01"; filename="addedaslib.jpg" Content-Type: image/jpeg ----WebKitFormBoundaryE19zNvXGzXaLvS5C ``` I am trying to replicate that using the multipart/form-data with my android HttpPost but it doesn't seem to be working. Is there a way to "preview" my request and see how it is actually posting to the api? what am i doing wrong? my code: ``` public HttpResponse invokeXAUTHPOSTService(String url, String token, File file) { client = new DefaultHttpClient(); HttpPost request = new HttpPost(url); HttpResponse response = null; MultipartEntity mpe = new MultipartEntity(); try { Log.v("API", "URL:"+url); request.setHeader("Content-Type", "multipart/form-data"); request.addHeader("X-AUTHORIZATION",token); request.addHeader("Cache-Control", "no-cache"); DRPContentForUpload content = new DRPContentForUpload(file); String jsonObject = DRPJSONConverter.toJson(content); FormBodyPart part1= new FormBodyPart("file01", new StringBody(jsonObject)); FormBodyPart part2= new FormBodyPart("file01", new FileBody(file)); mpe.addPart(part1); mpe.addPart(part2); // request.setEntity(mpe); Log.v("RAW REQUEST", "request looks like:"+mpe.toString()); response = client.execute(request); ``` EDIT I was able to talk to my API team, and they said my post actually looks like this: ``` --0ieMJK6PPwcrM_K3KQvl6eNDGqooZPzJcvHOm0 Content-Disposition: form-data; name="file01" Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit {"mime_type":"image/jpeg","title":"IMG_20140131_111622"} --0ieMJK6PPwcrM_K3KQvl6eNDGqooZPzJcvHOm0 Content-Disposition: form-data; name="file01"; filename="IMG_20140131_111622.jpg" Content-Type: application/octet-stream Content-Transfer-Encoding: binary ``` That said its still not working and spitting back an error that i am missing params here is a screen shot of the libraries included in my project:

Original source