Onedrive API File Upload Using Java
I am trying to upload a file to a OneDrive folder using a POST REST call. My app can communicate with OneDrive. The answer I get saysThe request entity body isn't a valid JSON object.
Below is my code, please let me know the wrong part of the code or my approach.
public static void onedriveFileUpload() {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost uploadFile = new HttpPost("https://apis.live.net/v5.0/folder.id");
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
uploadFile.addHeader("Authorization", "Bearer access_token");
builder.addPart("file", new FileBody(new File("Test.txt"), ContentType.APPLICATION_OCTET_STREAM, "Test.txt"));
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
Charset chars = Charset.forName("utf-8");
builder.setCharset(chars);
uploadFile.setEntity(builder.build());
uploadFile.setHeader("Content-Type", "multipart/form-data");
uploadFile.setHeader("charset", "UTF-8");
uploadFile.setHeader("boundary", "AaB03x");
HttpResponse response = null;
try {
response = httpClient.execute(uploadFile);
HttpEntity responseEntity = response.getEntity();
String json = EntityUtils.toString(responseEntity);
System.out.println(json);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Here is the Json response I get from OneDrive.
{
"error": {
"code": "request_body_invalid",
"message": "The request entity body isn't a valid JSON object."
}
}
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2 answers
You should send a message to https://apis.live.net/v5.0/:albumId/files/:fileName [ . : format] . And instead of MultipartEntity, try using ByteArrayEntity. Example:
public Photo uploadPhoto(String accessToken, String albumId, String format, byte[] bytes) throws IOException {
Photo newPhoto = null;
URI uri;
try {
uri = new URIBuilder().setScheme(DEFAULT_SCHEME)
.setHost(API_HOST)
.setPath("/" + albumId + "/files/" +
UUID.randomUUID().toString() + "." + format)
.addParameter("access_token", accessToken)
.addParameter("downsize_photo_uploads", "false")
.build();
} catch (URISyntaxException e) {
e.printStackTrace();
throw new IllegalStateException("Invalid album path");
}
CloseableHttpClient httpClient = HttpClients.createDefault();
try {
HttpPut httpPut = new HttpPut(uri);
ByteArrayEntity imageEntity = new ByteArrayEntity(bytes);
httpPut.setEntity(imageEntity);
Map<Object, Object> rawResponse = httpClient.execute(httpPut, new SomeCustomResponseHandler());
if (rawResponse != null) {
newPhoto = new Photo();
newPhoto.setName((String) rawResponse.get("name"));
newPhoto.setId((String) rawResponse.get("id"));
// TODO:: Do something else.
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
httpClient.close();
}
return newPhoto;
}
This code is a snippet from OneDrive4J. Check it out at https://github.com/nicknux/onedrive4j . I built this earlier this year when I was trying to search for OneDrive Java Client.
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