I've been trying to call the rest API of video intelligence through a java program to annotate a local file. Here is my code:
byte[] data = Files.readAllBytes(path);
byte[] encodedBytes = Base64.encodeBase64(data);
URIBuilder builder = new URIBuilder("https://videointelligence.googleapis.com/v1beta2/videos:annotate");
URI uri = builder.build();
HttpPost request = new HttpPost(uri);
request.setHeader("Content-Type", "application/json");
request.setHeader("X-Goog-Api-Key",MyKey);
JSONObject json = new JSONObject();
JSONArray jsonArray = new JSONArray();
jsonArray.put("LABEL_DETECTION");
json.put("inputContent", encodedBytes);
json.put("features", jsonArray);
StringEntity reqEntity = new StringEntity(json.toString());
request.setEntity(reqEntity);
HttpResponse response = httpclient.execute(request);
HttpEntity entity = response.getEntity();
I'm getting this error:
"error": {
"code": 400,
"message": "Invalid JSON payload received. Unknown name \"input_content\": Proto field is not repeating, cannot start list.
Could anyone help me with this error please? thank you
The error message is not really helpful. Problem here is that "inputContent" should be String instead of byte[]. This worked for me:
String str = new String(encodedBytes, "UTF-8");
requestJson.put("inputContent", str);
Related
Hi I'm new with moodle and I'm getting an error when calling the webservice.
Currently I'm trying to retrieve a user from moodle with the following function core_user_get_users_by_field and I'm using rest service to do so. I already managed to create a user thus I am authenticated to use the service.
the error that I'm receiving is
Missing required key in single structure: field
The bellow is the code was used to create a User. the issue that I got from the error is that the parameter that I need to send for the post is not formatted well. Does anyone know how to search correctly with this method or any other method.
String token = "token";
String postData = "username=username";
string createRequest = string.Format("http://domain/webservice/rest/server.php?wstoken={0}&wsfunction={1}&moodlewsrestformat=json", token, "core_user_get_users_by_field");
// Call Moodle REST Service
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(createRequest);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
// Encode the parameters as form data:
byte[] formData =
UTF8Encoding.UTF8.GetBytes(postData);
req.ContentLength = formData.Length;
// Write out the form Data to the request:
using (Stream post = req.GetRequestStream())
{
post.Write(formData, 0, formData.Length);
}
// Get the Response
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Stream resStream = resp.GetResponseStream();
StreamReader reader = new StreamReader(resStream);
string contents = reader.ReadToEnd();
// Deserialize
JavaScriptSerializer serializer = new JavaScriptSerializer();
if (contents.Contains("exception"))
{
// Error
MoodleException moodleError = serializer.Deserialize<MoodleException>(contents);
}
else
{
// Good
}
The webservice core_user_get_users_by_field needs an associative array given as parameter with the following key:values
'field': 'id'
'values': array of integers (must be an array, possibly with just one value)
In PHP it would be, for example:
$parameters = array('field' => 'id', 'values' => array(13));
It means: the user whose 'id' has the value of 13. Of course, you can use other parameters as well: ('field'=>'lastname', 'values'=> array('Smith'))
The parameters you can choose are the fields of the Moodle 'user' table.
Try to build these parameters in your postData variable.
Here's URL that work with my put this url in postman and set http method to post method
hostname/webservice/rest/server.php?wstoken=any_token&wsfunction=core_user_get_users_by_field&field=email&values[0]=h#fci.com
&moodlewsrestformat=json
if I do a simple HTTP GET request with e.g. POSTMAN then in the response there's an element called 'entity_id'.
e.g. https://www.facebook.com/yourFacebookName
If however, I do the request from a simple C# app then the following code doesnt return the 'entity_id' element in the response and I cant figure out why?
Code from app:
string html = string.Empty;
string url = string.Format("https://www.facebook.com/{0}", "yourFBName");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.AutomaticDecompression = DecompressionMethods.GZip;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
using (Stream stream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(stream))
{
html = reader.ReadToEnd();
}
if (html.Contains("entity_id"))
{
//do some stuff
}
Anyone know why its dropping the 'entity_id' element, but returning it when hitting that url from POSTMAN etc?
I have implemented a REST service using Spring Integration.
When I try to access the service manually using main function, It is working fine.
I also tested the service using REST Client in Google Chrome and that worked. But the service is coming back with responseCode 404 on WebSphere server. So I am facing the issue when I deploy the code on higher environment.
URL u = new URL("http://localhost:8080/MyApplication/testRestService");
URLConnection uc = u.openConnection();
HttpURLConnection connection = (HttpURLConnection) uc;
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Accept","*/*");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
OutputStream out = connection.getOutputStream();
Writer wout = new OutputStreamWriter(out);
//helper function that gets a string from a dom Document
String input = jsonInput;
wout.write(input.getBytes());
wout.flush();
wout.close();
// Response
int responseCode = connection.getResponseCode();
Is is dependent on server, so its coming back with response code 404 ? Do we need any server side configuration ?
Any suggestion will be appreciated.
Why do you use different ContentType for URLConnection and for httpClient?
Show, please, your REST service config: 404 means Not found. Therefore you use (or don't) some options in request which makes it non-matching for the server's RequestMapping.
I tried with Apache HTTP Client and the code is working on WebSphere now. Still I am not able to find the reason why java.net.HttpURLConnection was not working on WebSphere.
Please find my updated code below :
DefaultHttpClient httpClient = null;
HttpPost postRequest = null;
StringEntity inputEntity = null;
HttpResponse response = null;
try{
//RETREIVE WEB SERVICE URL FROM DB
String callbackURL = "http://localhost:8080/MyApplication/testRestService";
httpClient = new DefaultHttpClient();
postRequest = new HttpPost(callbackURL);
String inputData = request.toString();
inputEntity = new StringEntity(inputData);
inputEntity.setContentType("application/x-www-form-urlencoded");
postRequest.setEntity(inputEntity);
response = httpClient.execute(postRequest);
if (response.getStatusLine().getStatusCode() != 201 && response.getStatusLine().getStatusCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "+ response.getStatusLine().getStatusCode());
}
//System.out.println("HTTP Response Code :"+response.getStatusLine().getStatusCode());
LOGGER.debug("HTTP Response Code :"+response.getStatusLine().getStatusCode());
httpClient.getConnectionManager().shutdown();
}catch(IOException ex){
ex.printStackTrace();
throw ex;
}finally{
httpClient.getConnectionManager().shutdown();
httpClient = null;
postRequest = null;
inputEntity = null;
response = null;
}
I am beginner in that, but
I have a restful web service and i want to send a http get request from it and handle the response in it. if any one knows how can i do this ?
i tried this :
#Context private HttpServletRequest servletRequest;
#Context private HttpServletContext servletContext;
but i want to know what's this injection will return to me? i don't understand how will get it and it's scope, and how to get the response?!
and how i will send the request?
i found this http client apache
and here is an example for sending an Get request and getting the response
http://www.mkyong.com/java/apache-httpclient-examples/
String url = "http://www.google.com/search?q=httpClient";
HttpClient client = HttpClientBuilder.create().build();
HttpGet request = new HttpGet(url);
// add request header
request.addHeader("User-Agent", USER_AGENT);
HttpResponse response = client.execute(request);
System.out.println("Response Code : "
+ response.getStatusLine().getStatusCode());
BufferedReader rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
result.append(line);
}
i'll try and post any helpful edits i reach, anyone have another helpfull comments or edits please do.
I am using WSO2-AM-1.9.0, trying to generate the Access token using Consumer Key and Consumer Secrete.
When making a call using CURL it works fine
curl -k -d "grant_type=password&username=testuser1&password=testUser1&scope=SANDBOX" -H "Content-Type:application/x-www-form-urlencoded" -H "Authorization:Basic ZXNuaHJTZmJmOW9XS28xTVM5UHJSZ1BacUU0YTpld040RGh1ZmsxYTNZbndVNU1uMVlGM3IwanNh" http://10.0.100.108:8280/token
But when trying with Java it returns 403 error code. Code is:
try
{
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet("http://10.0.100.108:8280/token");
HttpParams params=new BasicHttpParams();
get.addHeader("Authorization","Basic ZXNuaHJTZmJmOW9XS28xTVM5UHJSZ1BacUU0YTpld040RGh1ZmsxYTNZbndVNU1uMVlGM3IwanNh");
get.addHeader("content-type", "application/x-www-form-urlencoded");
params.setParameter("grant_type", "password");
params.setParameter("username", "testuser1");
params.setParameter("password", "testUser1");
params.setParameter("scope", "SANDBOX");
get.setParams(params);
HttpResponse response = client.execute(get);
BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
String line = "";
while ((line = rd.readLine()) != null) {
responseBody = responseBody +"\n"+line;
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
Error:
403 Status report
Runtime Error No matching resource found in the API for the given request
Any help and info on this is appreciated.
You have to send a POST request not a GET. Use,
HttpPost httpPost = new HttpPost("http://10.0.100.108:8280/token");