is there any API given by bitbucket for access token generation?
Asked by srinath reddy:

Hi All,  
I want to use an API for the access token generation through the java application for accessing, creating and updating repositories, workspaces of the bitbucket account.  
but i do not find any api's for this purpose. Is there any API's for achieving this functionality?  
please let me know if anybody knows about this.  

thanks in advance!


Answers:
author: Oday Rafeh
body: Hi, [@srinath reddy](/t5/user/viewprofilepage/user-id/5170333), I was reaching out yesterday to find something I can help you with and here is what I found :

To generate an access token, you can make a POST request to the /site/oauth2/access_token endpoint with the appropriate parameters. You will need to provide the client ID, client secret, and grant type as parameters in the request body.

An example of how to generate an access token using the Bitbucket REST API in Java:

```
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;

public class AccessTokenGenerator {
public static void main(String[] args) {
try {
String clientId = "your_client_id";
String clientSecret = "your_client_secret";
String grantType = "client_credentials";

String urlParameters = "grant_type=" + URLEncoder.encode(grantType, StandardCharsets.UTF_8) +
"&client_id=" + URLEncoder.encode(clientId, StandardCharsets.UTF_8) +
"&client_secret=" + URLEncoder.encode(clientSecret, StandardCharsets.UTF_8);

byte[] postData = urlParameters.getBytes(StandardCharsets.UTF_8);
int postDataLength = postData.length;

String requestURL = "https://bitbucket.org/site/oauth2/access_token";
URL url = new URL(requestURL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();

connection.setDoOutput(true);
connection.setInstanceFollowRedirects(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("charset", "utf-8");
connection.setRequestProperty("Content-Length", Integer.toString(postDataLength));
connection.setUseCaches(false);

connection.getOutputStream().write(postData);

BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();

while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}

in.close();
connection.disconnect();

String accessToken = response.toString();
System.out.println(accessToken);

} catch (Exception e) {
e.printStackTrace();
}
}
}
```

replace "your_client_id" and "your_client_secret" with your actual client ID and client secret.

Hops this going to help you

comments: author: srinath reddy
body: Hi [@Oday Rafeh](/t5/user/viewprofilepage/user-id/5172837)   
thanks for the reply,  

the code provided by you is giving the 400 error ,   
i tried again by checking the credentials and its not working.  

suggest me if you know anything further,  

thank you for the reply.


author: Oday Rafeh
body: [@srinath reddy](/t5/user/viewprofilepage/user-id/5170333)

Mmm because you're getting a 400 error while trying to generate an access token using the Bitbucket REST API, it usually means that the request parameters are not correct or there's an issue with your Bitbucket credentials.

Here are some things you can try:

Double-check that you're using the correct client ID and client secret. You can find these values in your Bitbucket account settings.

<br />

Make sure that the grant type is set to "client_credentials".

<br />

Verify that you're making a POST request to the correct endpoint: /site/oauth2/access_token

<br />

Check if there are any special characters in your client ID or client secret that may be causing issues. If there are, try encoding them before sending the request.

I hope this helps! and if not

Then maybe the support can help you out.

<br />

<br />


author: srinath reddy
body: Hi [@Oday Rafeh](/t5/user/viewprofilepage/user-id/5172837)   
I tried checking credentials and grant type also.  

but still getting the 400 error,

you checked the above code in your system?  

are you getting the access token?

please let me know if you are getting the access token.  

thankyou.


Tags: access

api

bitbucket-cloud

rest-api