public async void MakeRequest(string requestUrl)
{
try
{
HttpWebRequest request = WebRequest.Create(requestUrl) as HttpWebRequest;
using (HttpWebResponse response = await request.GetResponseAsync() as HttpWebResponse)
{
if (response.StatusCode != HttpStatusCode.OK)
throw new Exception(string.Format(
"Server error(HTTP {0}:{1}.",
response.StatusCode,
response.StatusDescription));
DataContractJsonSerializer jsonSerializer = new DataContractJsonSerializer(typeof(RootObject));
object objResponse = jsonSerializer.ReadObject(response.GetResponseStream());
root = (RootObject)objResponse;
if (root == null)
this.Frame.Navigate(typeof(MainPage));
}
}
catch (Exception ex)
{
ThrowException(ex);
}
}
Link : http://dev.virtualearth.net/REST/V1/Routes?wp.0=39.920829,32.853883&wp.1=39.877666,32.864728&key=BingMapsKey
Is there anything wrong in my in the codes above?
Just change this line for make the query with JSON and not XML format
So from this ...
string query = "http://dev.virtualearth.net/REST/v1/Locations/" +
queryString + "?output=xml" + " &key=" + BingMapsKey;
To this ...
string query = "http://dev.virtualearth.net/REST/v1/Locations/" +
queryString + "?output=json" + " &key=" + BingMapsKey;
i.e. just change output=xml to output=json
This code is working fine for me once I replace the undefined RootObject in your code with the BingMapsRESTService.Common.JSON.Response type found in the Bing Maps REST Service .NET Libraries that #rbrundritt suggested you use in your other post
Related
I am developing an Android app in Unity. I am trying to make UnityWebRequests to work with Vuforia's Web Services API. Currently every method works - GET/PUT/DELETE, but I cannot POST anything, I always get an error:
Error:Generic/unknown HTTP error
Response code:400
Even though according to Vuforia's documentation POST requires the same request body as PUT and I am generating it using the same approach:
public string CreateNewUpdateBody(Text name, Text width, RawImage image, Toggle active_flag, Text application_metadata)
{
dynamic BodyData = new System.Dynamic.ExpandoObject();
if (!string.IsNullOrEmpty(name.text))
{
BodyData.name = name.text; // mandatory for post
}
if (!string.IsNullOrEmpty(width.text))
{
BodyData.width = float.Parse(width.text); // mandatory for post
}
if (image.texture != null)
{
Texture2D texture = (Texture2D)image.texture;
BodyData.image = System.Convert.ToBase64String(ImageConversion.EncodeToJPG(texture)); // mandatory for post
}
if (active_flag.interactable)
{
BodyData.active_flag = active_flag.isOn;
}
if (!string.IsNullOrEmpty(application_metadata.text))
{
BodyData.application_metadata = System.Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(application_metadata.text));
}
string json = JsonConvert.SerializeObject(BodyData);
Debug.Log("Body data: " + json);
return json;
}
Then I send the web request like this:
private IEnumerator PostTarget(MonoBehaviour mono, string postBody)
{
var request = UnityWebRequest.Post(url + "/targets", postBody);
SetHeaders(request); // Must be done after setting the body
Debug.Log("Starting request " + request.method + " " + request.url);
yield return request.SendWebRequest();
while (!request.isDone) yield return null;
if (request.isHttpError || request.isNetworkError)
{
Debug.LogError("Request was not completed");
Debug.LogError("Error:" + request.error + " Response code:" + request.responseCode);
Debug.LogError(request.downloadHandler.text); // result_code is always just "Fail"
mono.StopAllCoroutines();
yield break;
}
else
{
Debug.Log("Request completed successfuly!");
Debug.Log(request.downloadHandler.text);
}
response = JsonUtility.FromJson<ResponsePostNewTarget>(request.downloadHandler.text);
Debug.Log("\nCreated target with id: " + response.target_id);
}
Any thoughts or suggestions? I appreciate the time you take to read this.
If everything works BUT posting data, either 1 vuforia doesn't support it or 2 (most likely) you're missing something.
Try adding this to your request
private UploadHandler GetUploadHandler(string postBody)
{
UploadHandler handler = new UploadHandlerRaw(System.Text.Encoding.UTF8.GetBytes(postBody));
handler.contentType = "application/json";
return handler;
}
And call it after SetHeaders
request.uploadHandler = GetUploadHandler(postBody);
I am getting the following error
InvalidPolicyDocumentThe content of the
form does not meet the conditions specified in the policy
document.Policy document parsing error: Lexical
Error: Unmatched Input: <s>
My Async Task to call a HTTPURLConnection is below. The multipartv1 class is from here.
Inside an AsyncTask doinbackground
{multipartv1.addFormField("key", filename_insert_value);
multipartv1.addFormField("bucket", “myapplication”);
multipartv1.addFormField("Content-Type", "image/jpeg");
multipartv1.addFormField("GoogleAccessId", “myapplication#appspot.gserviceaccount.com");
multipartv1.addFormField("acl", "bucket-owner-read");
multipartv1.addFormField("success_action_redirect", "https://myapplication.appspot.com/getpolicydocumentsuccess");
multipartv1.addFormField("success_action_status", "201");
multipartv1.addFormField("x-goog-meta-programname", this.current_program_name);
multipartv1.addFormField("x-goog-meta-membername", this.member_element_id);
multipartv1.addFormField("x-goog-meta-tag1", tag1);
multipartv1.addFormField("x-goog-meta-tag2", tag2);
multipartv1.addFormField("x-goog-meta-tag3", tag3);
multipartv1.addFormField("x-goog-meta-tag4", tag4);
multipartv1.addFormField("x-goog-meta-tag5", tag5);
multipartv1.addFormField("policy", this.policy);
multipartv1.addFormField("signature", this.signature);
multipartv1.addFilePart("file", new File(this.file_absolute_path));
List<String> response_multipart = multipartv1.finish();
Log.e(Tag, "SERVER REPLIED:");
for (String line : response_multipart) {
Log.e(Tag, "Upload Files Response:::" + line);
}
The "policy" is generated from my backend (Google App Engine) using Google Cloud Endpoint API. This is as policy document supported by Google Cloud Storage XML API as listed here. The "policy" works perfectly when accessed through a Webapplication.
The "policy" looks like this -
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
My fear is when I add the parameter for "policy" in my HttpURLConnection, something is messed up. The code to add the "policy" parameter is this -
public void addFormField(String name, String value) {
writer.append("--" + boundary).append(LINE_FEED);
writer.append("Content-Disposition: form-data; name=\"" + name + "\"")
.append(LINE_FEED);
writer.append("Content-Type: text/plain; charset=" + charset).append(
LINE_FEED);
writer.append(LINE_FEED);
writer.append(value).append(LINE_FEED);
writer.flush();
}
The HTTP Post call is here -
public List<String> finish() throws IOException {
List<String> response = new ArrayList<String>();
writer.append(LINE_FEED).flush();
writer.append("--" + boundary + "--").append(LINE_FEED);
writer.close();
// checks server's status code first
int status = httpConn.getResponseCode();
if (status == HttpURLConnection.HTTP_OK) {
BufferedReader reader = new BufferedReader(new InputStreamReader(
httpConn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
response.add(line);
}
reader.close();
httpConn.disconnect();
} else {
throw new IOException("Server returned non-OK status: " + status);
}
return response;
}
The boundary string is this
String boundary = "===" + System.currentTimeMillis() + "===";
Using Grails 3.0.9, and grabbing the freshest REST API with this snippet in gradle.build:
compile 'org.grails:grails-datastore-rest-client:4.0.7.RELEASE', {
['commons-codec', 'grails-async', 'grails-core',
'grails-plugin-converters', 'grails-web', 'groovy'].each {
exclude module: it
}
}
I am trying to make the following POST request:
def rest = new RestBuilder(headers:["X-LSS-Env":"devmo"], connectTimeout:10000, readTimeout:20000)
response = rest.post("http://..../..") {
accept "application/json"
contentType "application/json"
json jsonBuilder
}
Now, the POST receiver gets the json okay, give back a response okay, but this is the problem: it receives the headers as an empty map or as null!
So, what is the correct way of passing header data to the POST receiver? This is needed because the environment key X-LSS-Env could have different values, which instructs the receiver to do further routing based on it. Same with the GET request of course.
* UPDATE *
The consumer of my POST requests is actually a Java application, running on Apache Tomcat/8.0.26. The is how the service looks on the other side:
private javax.servlet.http.HttpServletRequest hsr;
#POST
#Path("/na")
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
public Response postSomething(Ggfp ggfp ){
try {
Enumeration<String> hnames = hsr.getHeaderNames();
int i = 0;
while (hnames.hasMoreElements()) {
String headerName = hnames.nextElement();
System.out.println(++i+ " headerName: " + headerName);
String val = hsr.getHeader(headerName);
System.out.println(" val: " + val);
}
String hval = hsr.getHeader("X-LSS-Env");
return Response.status(Status.OK).entity("X-LSS-Env is " + hval).build();
} catch (Exception e) {
}
}
Calling this service from Postman works, headers are identified. Calling it from the Grails app results into an empty map - like I am sending no headers!
The RestBuilder constructor never liked the way I used (or abused) it. Here is a clean way of achieving what I set out to do, with tryCatch logic if a timeout transpires.
def makePostWsr(serviceUrl, jsonBuilder) {
try {
def rest = new RestBuilder(connectTimeout:connectTimeout, readTimeout:readTimeout)
def response = rest.post("$wsUrl/$serviceUrl") {
header 'X-LSS-Env', 'devmo'
accept "application/json"
contentType "application/json"
json jsonBuilder
}
response
} catch (Exception e) {
println "== problem makePostWsr on $serviceUrl"
null
}
}
I have the next problem: I've made a simple application which retrieves information from a server (GET Method). The application works fine as long as the information is retrieved successfully.
In case of insuccess, I don't receive the error from the server (ex: 401 - Unauthorized, 403 - Forbidden - when the authentication token is incorrect for example).
How can I fix this so that my application will return the error from server ? I've done also a POST method and there it's working, I received all erorrs froem server in case of insuccess.
What i'm doing wrong with this code ? Why i don't receive an error in case of insuccess?
The only error I receive in output is 400 in all scenarios and this isn't enough.
For example, if the authorization token is incorrect, I should receive from server 401 - Unauthorized. I know this because i'm doing test with other REST application (like POSTMAN). Can it be fixed to show the errors related to that scenarios ?
void example2() {
// GET METHOD !
try {
String webPage = "https://www.clients.ro";
String name = "user";
String password = "pass";
String authString = name + ":" + password;
System.out.println("Decoded authorization token" + authString);
//byte[] authEncBytes = Base64.encodeBase64(authString.getBytes());
//String authStringEnc = new String(authEncBytes);
byte[] authEncBytes = authString.getBytes(StandardCharsets.UTF_8);
String authStringEnc = DatatypeConverter.printBase64Binary(authEncBytes);
System.out.println("Token encoded in Base64 " + authStringEnc);
URL url = new URL(webPage);
URLConnection urlConnection = url.openConnection();
urlConnection.setRequestProperty("Authorization", "Basic " + authStringEnc);
InputStream is = urlConnection.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
int numCharsRead;
char[] charArray = new char[1024];
StringBuffer sb = new StringBuffer();
while ((numCharsRead = isr.read(charArray)) > 0) {
sb.append(charArray, 0, numCharsRead);
}
String result = sb.toString();
System.out.println(result);
System.out.println();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
My code is given below
WebResource webResource1 = cl.resource("https://api.box.com/2.0/files/{fileId}/content");
ClientResponse res1 = webResource1.header("Authorization", "Bearer"+p1.getAccess_token()).get(ClientResponse.class);
String jsonStr1 = res1.getEntity(String.class);
And my response is given below-
{Object-Id=[file_20317568941], Cache-control=[private], Date=[Wed, 24 Sep 2014 12:11:43 GMT], Content-Length=[27], X-Robots-Tag=[noindex, nofollow], Content-Disposition=[attachment;filename="upload.txt";filename*=UTF-8''upload.txt], Accept-Ranges=[bytes, bytes], Connection=[keep-alive], Content-Type=[text/plain; charset=UTF-8], Server=[nginx], X-Content-Type-Options=[nosniff]}
I am getting status code 200, OK; but to get the location attribute I need to have the status code 302 along with the location url (https://dl.boxcloud.com/*).
Without getting location: https://dl.boxcloud.com/* attribute in the response, how can I download file from box api?
last Saturday I got some time to look into your issue. The basic problem is that if you need to get the Location value you need to stop the automatic redirection. Following is the explanation & solutions of your problem:
Quoting Box API docs of Download a File:
If the file is available to be downloaded, the response will be a 302
Found to a URL at dl.boxcloud.com.
From Wikipedia article on HTTP 302:
The HTTP response status code 302 Found is a common way of performing
URL redirection.
An HTTP response with this status code will additionally provide a URL
in the Location header field. The user agent (e.g. a web browser) is
invited by a response with this code to make a second, otherwise
identical, request to the new URL specified in the Location field.
So to get the Location attribute in the response header you need to stop the automatic redirection. Otherwise as per the box doc you will get the raw data of the file instead of the download URL.
Following is a solution implemented using Commons HTTPClient:
private static void getFileDownloadUrl(String fileId, String accessToken) {
try {
String url = MessageFormat.format("https://api.box.com/2.0/files/{0}/content", fileId);
GetMethod getMethod = new GetMethod(url);
getMethod.setFollowRedirects(false);
Header header = new Header();
header.setName("Authorization");
header.setValue("Bearer " + accessToken);
getMethod.addRequestHeader(header);
HttpClient client = new HttpClient();
client.executeMethod(getMethod);
System.out.println("Status Code: " + getMethod.getStatusCode());
System.out.println("Location: " + getMethod.getResponseHeader("Location"));
} catch (Exception cause) {
cause.printStackTrace();
}
}
An alternate solution using java.net.HttpURLConnection:
private static void getFileDownloadUrl(String fileId, String accessToken) {
try {
String serviceURL = MessageFormat.format("https://api.box.com/2.0/files/{0}/content", fileId);
URL url = new URL(serviceURL);
HttpURLConnection connection = HttpURLConnection.class.cast(url.openConnection());
connection.setRequestProperty("Authorization", "Bearer " + accessToken);
connection.setRequestMethod("GET");
connection.setInstanceFollowRedirects(false);
connection.connect();
int statusCode = connection.getResponseCode();
System.out.println("Status Code: " + statusCode);
Map<String, List<String>> headerFields = connection.getHeaderFields();
List<String> locations = headerFields.get("Location");
if(locations != null && locations.size() > 0) {
System.out.println("Location: " + locations.get(0));
}
} catch (Exception cause) {
cause.printStackTrace();
}
}
Since Commons HTTPClient is outdated the following solution is based on the Apache HttpComponents:
private static void getFileDownloadUrl(String fileId, String accessToken) {
try {
String url = MessageFormat.format("https://api.box.com/2.0/files/{0}/content", fileId);
CloseableHttpClient client = HttpClientBuilder.create().disableRedirectHandling().build();
HttpGet httpGet = new HttpGet(url);
BasicHeader header = new BasicHeader("Authorization", "Bearer " + accessToken);
httpGet.setHeader(header);
CloseableHttpResponse response = client.execute(httpGet);
int statusCode = response.getStatusLine().getStatusCode();
System.out.println("Status Code: " + statusCode);
org.apache.http.Header[] headers = response.getHeaders(HttpHeaders.LOCATION);
if(header != null && headers.length > 0) {
System.out.println("Location: " + headers[0]);
}
} catch (Exception cause) {
cause.printStackTrace();
}
}