Convert Curl to java for stripe connect - java

I'm trying to set up stripe connect (https://stripe.com/docs/connect/standalone-accounts) on my application, but I'm failing to set up the link between the platform and the standalone account. It provides a curl code to execute, and examples in ruby, python, PHP and node; but no java.
The curl call is as follows:
curl https://connect.stripe.com/oauth/token \ -d client_secret=sk_test_IgHHUgcqKmxA8Yyai9ocqpZR \ -d code=AUTHORIZATION_CODE \ -d grant_type=authorization_code
It looks pretty simple, but I have no idea how this works. I have been looking around trying to figure out how to make this call in java, and so far I haven't been able to.
Finally i got the correct code to run the curl command ,but it gives bunch of result.but i want only paricular id in it.how can i get that?
`URL url = new URL("https://connect.stripe.com/oauth/token");
Map<String,Object> params = new LinkedHashMap<>();
params.put("client_secret",API_KEY);
params.put("code", code);
params.put("grant_type", "authorization_code");
StringBuilder postData = new StringBuilder();
for (Map.Entry<String,Object> param : params.entrySet()) {
if (postData.length() != 0) postData.append('&');
postData.append(URLEncoder.encode(param.getKey(), "UTF-8"));
postData.append('=');
postData.append(URLEncoder.encode(String.valueOf(param.getValue()), "UTF-8"));
}
byte[] postDataBytes = postData.toString().getBytes("UTF-8");
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
conn.setRequestProperty("Content-Length", String.valueOf(postDataBytes.length));
conn.setDoOutput(true);
conn.getOutputStream().write(postDataBytes);
Reader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
StringBuilder sb = new StringBuilder();
for (int c; (c = in.read()) >= 0;)
sb.append((char)c);
String response = sb.toString();`
and i got
response={
"access_token": "xxxxxxxxxxxxxxxxx",
"livemode": false,
"refresh_token": "xxxxxxxxxxxxxxxxxxxxxxxt",
"token_type": "bearer",
"stripe_publishable_key": "xxxxxxxxxxxxxxxxxxxxxxxx",
"stripe_user_id": "xxxxxxxxxxxxxxxxxxxxxxxxx",
"scope": "express"
}
how can i get only the stripe_user_id in java

The -d parameters in curl are for POST data (see the curl man page). POST is the method for sending form data (e.g. when you submit a web form). Rather than putting the parameters on the end of the URL, like you would in a GET request, the parameters are encoded and sent inside the "body" of the request.
Take a look at this answer or this one for various ways you can send POST data with requests from Java.
Alternatively, you could execute the curl process from Java. See this example.

There are various ways to establish connections to outbound servers. Here is an example of a Stripe OAuth integration, using Apache HttpComponents.

I got an answer for that one using JSONObject,
JSONObject jObject = new JSONObject(response);
String stripe_user_id=(String) jObject.get("stripe_user_id");

Related

How to fix dialogflow authentication issue

I have a dialogflow project that I'm trying to access from Java with a rest call.
It is giving me an authentication issue.
I have followed all online instructions (and many forum suggestions) to no avail.
I have tried generating the key json, as per the instructions here:
https://dialogflow.com/docs/reference/v2-auth-setup
and setting my environment variable as described, but nothing seems to work.
I have checked my projectID, and am running off the same machine with the environment variable, and have double, triple and quadruple checked it's name and location, but I still get the following error:
java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode
Here is my code (though it's a REST call, so I don't know if it's so relevant):
String url = https://dialogflow.googleapis.com/v2/projects/MYPROJECT/agent/sessions/SESSION_NUM:detectIntent
URL url = new URL(full_url);
String inText = "Hello World";
String outText = "";
HttpURLConnection con = (HttpURLConnection) url.openConnection();
try {
con.setDoOutput(true);
con.setRequestMethod("POST");
// set body of http post
Map<String,String> arguments = new HashMap<>();
JSONObject inTextJsn = new JSONObject();
inTextJsn.append("text",inText);
inTextJsn.append("languageCode","en");
JSONObject fieldJsn = new JSONObject();
fieldJsn.append("text", inTextJsn);
arguments.put("queryInput", fieldJsn.toString());
StringJoiner sj = new StringJoiner("&");
for(Map.Entry<String,String> entry : arguments.entrySet())
sj.add(URLEncoder.encode(entry.getKey(), "UTF-8") + "="
+ URLEncoder.encode(entry.getValue(), "UTF-8"));
// post http post as bytes
byte[] bytes_out = sj.toString().getBytes(StandardCharsets.UTF_8);
con.setFixedLengthStreamingMode(bytes_out.length);
con.connect();
try (OutputStream os = con.getOutputStream()) {
os.write(bytes_out);
}
BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream(),
"UTF-8"));
// read all lines to a string
String line;
String response = "";
while ((line = reader.readLine()) != null) {
response += line;
}
JSONObject responseJsn = new JSONObject(response);
outText = responseJsn.get("fulfillmentText").toString();
} catch (Exception e) {
System.err.println(e);
} finally {
con.disconnect();
}
return restResponse;
The gist of the code is to simply send a message ("Hello World!") to my dialogflow, and get back my agent's response (the code may have bugs - it's a bit hard to test when I can't get passed this authentication issue, so please help with the authentication, not code bugs).
Thanks all!
The directions at that page assume you're going to use the gcloud program to generate a currently valid bearer token, which is then sent along with the HTTP headers. That page illustrates
Your code doesn't seem to be generating an Authorization HTTP header at all, which is why you're getting the error you do.
Since you're using Java, you should look at the google-auth-library-java library, which will give you the tools to generate the token you need to provide in the Authorization header.
You may also wish to check out the google-cloud-java library. This contains Java classes to directly perform operations against Dialogflow instead of coding the REST/HTTP calls yourself. (However, it is still at an Alpha level for Dialogflow, so may not be stable or forwards compatible.)

Ameritrade API POST Request JSON Response

I haven't coded in JAVA for years, and am trying to put an algorithm together to automatically make trades based on certain conditions.
I'm hoping to use the Ameritrade API
I've tried sending a cURL message in command prompt and I do indeed get a response back from the server 'Invalid Key'. I'd like to see the 'Invalid Key' response come back in Java as this will prove that I can send POST and receive JSON objects back into Java. From there I will work at authenticating but one step at a time!
Here's the curl message sent in command prompt that works, try it yourself by copying and pasting::
curl -X POST -H "Content-Type: application/x-www-form-urlencoded" -d "grant_type=authorization_code&refresh_token=&access_type=offline&code=&client_id=&redirect_uri=" " https://api.tdameritrade.com/v1/oauth2/token
The first thing I'd like to do is be able to send this curl message in JAVA and receive the JSON response back in JAVA
This is what I have for code so far, but I get a 500 error, which makes me think its something with the way im sending the message to the server?
public void trytoAuthenticate() {
HttpURLConnection connection = null;
//
//this is the curl message in command prompt you can send to receive JSON response back
//curl -X POST --header "Content-Type: application/x-www-form-urlencoded" -d
//"grant_type=authorization_code&
//refresh_token=&
//access_type=offline&
//code=&
//client_id=&
//redirect_uri=" "https://api.tdameritrade.com/v1/oauth2/token"
try {
//Create connection
URL url = new URL("https://api.tdameritrade.com/v1/oauth2/token");
String urlParameters = "grant_type=" + URLEncoder.encode("authorization_code", "UTF-8") +
"&refresh_token=" + URLEncoder.encode("", "UTF-8") +
"&access_type=" + URLEncoder.encode("", "UTF-8") +
"&code=" + URLEncoder.encode("", "UTF-8") +
"&client_id=" + URLEncoder.encode("", "UTF-8") +
"&redirect_uri=" + URLEncoder.encode("", "UTF-8");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST"); //-X
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //-H
connection.setRequestProperty("Content-Length",
Integer.toString(urlParameters.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches(false);
connection.setDoOutput(true);//connection will be output
connection.setDoInput(true);//connection will be input
//Send request
DataOutputStream wr = new DataOutputStream (connection.getOutputStream());
wr.writeBytes(urlParameters);
System.out.println(urlParameters); //added for testing
wr.close();
//Get Response
DataInputStream is = new DataInputStream (connection.getInputStream());
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
rd.readLine();
//StringBuffer response = new StringBuffer(); // or StringBuffer/StringBuilder if Java version 5+
//String line;
//while ((line = rd.readLine()) != null) {
// response.append(line);
// response.append('\r');
//}
rd.close();
//System.out.println(response.toString());
//return response.toString();
} catch (Exception e) {
e.printStackTrace();
//return null;
} finally {
if (connection != null) {
connection.disconnect();
}
}
}
}
A few things:
You need four parameters: grant_type, access_type, redirect_url and code.
You should URLDecode the authorization code you got from the browser login you probably just performed (as per their instructions)
Remove empty parameters, leave only what I mentioned above.
The redirect URL must match EXACTLY the redirect URL you added when you created your APP in the console.
If this is an app (looks like it), you probably have to set the access_type to "offline". Again see their documentation. Depends on your application.
grant_type should be "authorization_code", as that's what you want.

JSON POST Data via HttpURLConnection

I am trying to make a request to my RESTful API using Android and HttpURLConnection. The data must be sent in the JSON format via POST data.
Here is my code:
JSONObject check_request = new JSONObject();
check_request.put("username", username);
JSONObject request = BuildRequest(check_request, "username_check", false);
Log.i("DEBUG", request.toString());
// DEBUG OUTPUT: {"timestamp":1526900318,"request":{"username":"blubberfucken","type":"username_check"}}
URL request_url = new URL(apiURL);
HttpURLConnection connection = (HttpURLConnection)request_url.openConnection();
connection.setRequestProperty("User-Agent", "TheGameApp");
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-type", "application/json; charset=UTF-8");
connection.setDoOutput(true);
connection.setDoInput(true);
OutputStream os = connection.getOutputStream();
os.write(request.toString().getBytes("UTF-8"));
os.flush();
InputStream in = new BufferedInputStream(connection.getInputStream());
String result = "";
BufferedReader br = new BufferedReader(new InputStreamReader(in, "UTF8"));
String str;
while ((str = br.readLine()) != null)
{
result += str;
}
Log.i("DEBUG", result);
//JSONObject result_json = new JSONObject(result);
os.close();
in.close();
connection.disconnect();
You can see the Debug output as a Comment. The Problem is that the API does not receive any POST data. I have used PHPs var_dump to dump $_POST and $_REQUEST which both are empty arrays.
What am I missing here?
As the question popped up if the API work. This cURL command works fine with the correct result (it is the same JSON data as the debugger printed):
curl -d '{"timestamp":1526900318,"request":{"username":"blubberfucken","type":"username_check"}}' -H "Content-Type: application/json" -X POST http://localhost/v1/api.php
Just for the sake of completeness: The example above is working. The solution to the problem was pa part in PHP on the server side, where I checked the content type and used strpos to search for application/json in $_SERVER['CONTENT-TYPE'] and switched the needle and haystack (thus searching for application/json; charset=UTF8 in the string application/json instead of the other way around).

replicate wget command in java

i have this command:
wget -O prova.csv --header="prova-user: guest" --header="prova-passwd: guest"
"http://www.....................80&albedo=0.2&horizon=1"
i want to do a batch scheduled in Java but I can not connect. When I try to take the imputstream return me this error:
ERROR message -8: Unregistered IP address
This is my piece of code:
URL myURL = new URL(url);
HttpURLConnection myURLConnection = (HttpURLConnection)myURL.openConnection();
String userCredentials = "guest:guest";
String basicAuth = "Basic " + new String(new Base64().encode(userCredentials.getBytes()));
myURLConnection.setRequestProperty ("Authorization", basicAuth);
myURLConnection.setRequestMethod("POST");
myURLConnection.setRequestProperty("Content-Language", "en-US");
myURLConnection.setUseCaches(false);
myURLConnection.setDoInput(true);
myURLConnection.setDoOutput(true);
// Show page.
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(myURLConnection.getInputStream(), "UTF-8"));
for (String line; ((line = reader.readLine()) != null);) {
System.out.println(line);
}
} finally {
if (reader != null) try { reader.close(); } catch (IOException ignore) {}
}
is it possible? and how can I do it?
Thanks in advance
You had provided 2 completely different commands.
The first is a wget that send in HTTP headers a sort of authentication infos, and GET a result.
The second is a java program that perform an HTTP request in POST with basic authentication.
If the first command is working, than you should forget about the basic authentication and set the proper HTTP headers as you did in the wget command.
I don't know why you try a POST, if the wget looks as a normal GET request.
Just use a GET request in java too.
And it should work.
About the error, I suppose is the server that sent you such error message.
So it could be as you haven't correctly authenticated.
But it is a strange error, I'm expecting such kind of error if the server have a white list of IP addresses allowed to connect.
Are you running the wget and the java code on the same server?

Curl Object to URL Generation

I have webservice that I am trying to call:
The following Curl command works for that
curl -F fa=c.apiupload -F sessiontoken=EA3237F922644115A0F7DB75D0AE388F -F destfolderid=52482BD488DB4AD6887C5C7BF47BD6FC -F filedata=#/Users/cpinera/tmp/panda2.jpg -F zip_extract=1 -F metadata=1 -F meta_img_description="This is a very nice panda" -F meta_img_keywords="panda,happy panda" http://domain.com/razuna/raz1/dam/index.cfm
but the equivalent URL that I generates as my HttpURLConnection for accessing RESTFul API does not :
http://domain.com/razuna/raz1/dam/index.cfm?fa=c.apiupload&sessiontoken=F46D2226463C4ADE866819AACD7D2F5E&filedata=C:\JobInterview\BatchUpload\auth.xml&destfolderid=52482BD488DB4AD6887C5C7BF47BD6FC&zip_extract=1
I get this response for the REST Request:
The content was :: <?xml version="1.0" encoding="UTF-8"?><Response><responsecode>1</responsecode><message>Upload failed This was not an uploaded form type</message></Response>
Here is the Java Code
Method that uses queries the URL:
public static String doQuery(String loginUrl) throws IOException{
URL url = new URL(loginUrl);
HttpURLConnection conn =
(HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
if (conn.getResponseCode() != 200) {
throw new IOException(conn.getResponseMessage());
}
InputStream is = conn.getInputStream();
//Buffer the result into a string
BufferedReader rd = new BufferedReader(
new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
while ((line = rd.readLine()) != null) {
line = StringEscapeUtils.unescapeHtml4(line);
sb.append(line);
}
rd.close();
conn.disconnect();
System.out.println("The content was :: " + sb.toString());
return sb.toString();
}
Method that should upload:
public static void testUpload(String seesionToken, String file ) throws IOException{
String upload = "http://domain.com:8080/razuna/raz1/dam/index.cfm?fa=c.apiupload&sessiontoken="+seesionToken+"&filedata="+file+"&destfolderid=52482BD488DB4AD6887C5C7BF47BD6FC&zip_extract=1" ;
System.out.println(upload);
Authenticate.doQuery(upload);
}
After adding in doQuery:
conn.setRequestProperty("Content-Type", "multipart/form-data");
And changing RESTFul URL to:
http://domain.com:8080/razuna/raz1/dam/index.cfm?fa=c.apiupload&sessiontoken="+seesionToken+"&filedata="+files.toURI()+"&destfolderid=52482BD488DB4AD6887C5C7BF47BD6FC&zip_extract=1"
It seems to detect that URL is trying to send a File but still cannot upload file:
The content was :: <?xml version="1.0" encoding="UTF-8"?><Response><responsecode>1</responsecode><message>Upload failed There was no appropriate FILE found in the upload</message></Response>
Your curl command is uploading the file #/Users/cpinera/tmp/panda2.jpg. Using the URL by itself will not, it will simply access the page, hence your error that 'this was not an uploaded form'.
When you run curl with -F parameters, it sends an HTTP POST request with the specified name-value pairs passed in the body of the HTTP request. When you access a URL using query string parameters, an HTTP GET is performed. It seems likely that the server handles those two request methods differently.
Update, now that you've posted some Java code:
The values in the query string portion of the URL are used to convey information to the web server that will be handling the request. Of course, this remote server is not going to know what C:/path/to/your/file is, because this is a path to a file on your local machine. The proper way to send this file data is to open the file in Java, and then read it and write it to the HttpUrlConnection's output stream.
For example, see the code snippet under "Posting Content" on the Android documentation's discussion of HttpUrlConnection: http://developer.android.com/reference/java/net/HttpURLConnection.html

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