"Invalid appsecret_proof.." although everything set up correctly

[Daniel Füvesi]

Hi,

I have an fxml method in my desktop application from where I'd like to make a facebook post. Following your guide, I wrote this code:

@FXML
public void shareFacebookClicked() throws Exception{
    String appID = "MY_APP_ID";
    String appSecret = "MY_APP_SECRET";
    String accessToken = "MY_ACCESS_TOKEN";

    FacebookClient facebookClient = new DefaultFacebookClient(accessToken, appSecret, Version.VERSION_2_3);
    String proof = new DefaultFacebookClient().obtainAppSecretProof(
            accessToken, appSecret);
    System.out.println("Here's my proof: " + proof);
    FacebookType publishMessageResponse =
            facebookClient.publish("me/feed", FacebookType.class,
                    Parameter.with("message", "RestFB test"));

    System.out.println("Published message ID: " + publishMessageResponse.getId());

When I run the program and click the corresponding button I receive the common exception:

"Caused by: com.restfb.exception.FacebookGraphException: Received Facebook error response of type GraphMethodException: Invalid appsecret_proof provided in the API argument (code 100, subcode null)

at com.restfb.DefaultFacebookClient$DefaultGraphFacebookExceptionMapper.exceptionForTypeAndMessage(DefaultFacebookClient.java:1230)

at com.restfb.DefaultFacebookClient.throwFacebookResponseStatusExceptionIfNecessary(DefaultFacebookClient.java:1134)

at com.restfb.DefaultFacebookClient.makeRequestAndProcessResponse(DefaultFacebookClient.java:1067)

at com.restfb.DefaultFacebookClient.makeRequest(DefaultFacebookClient.java:978)

at com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:470)

at com.restfb.DefaultFacebookClient.publish(DefaultFacebookClient.java:494)"

What am I doing wrong? FYI: in the maven dependency I'm using version 1.11.0 of restfb.

Thanks for the help in advance!

[Norbert Bartels]

Hi Daniel,

Please add Parameter.with("appsecret_proof",proof) next to your Parameter.with('message', 'RestFB Test').

This should work.

Norbert

[Daniel Füvesi]

Hi Norbert,

Thank you for your help. Unfortunately, your mentioned approach did not solve the problem. If I understood you correctly my method should look like this:

String appID = "MY_APP_ID";
String appSecret = "MY_APP_SECRET";
String accessToken = "MY_ACCESS_TOKEN";

FacebookClient facebookClient = new DefaultFacebookClient(accessToken, appSecret, Version.VERSION_2_3);
String proof = new DefaultFacebookClient().obtainAppSecretProof(
        accessToken, appSecret);
System.out.println("Here's my proof: " + proof);
FacebookType publishMessageResponse =
        facebookClient.publish("me/feed", FacebookType.class,

                Parameter.with("message", "RestFB test"),
                Parameter.with("appsecret_proof", proof));

System.out.println("Published message ID: " + publishMessageResponse.getId());

However, I'm still getting the same exception about the invalid appsecret_proof. For now, I made a simple URL redirection (Facebook URL Redirection) given using a WebView (JavaFX). I'll continue to check out this group in case you or someone else suggests another solution/option.

Daniel

​

[Norbert Bartels]

Okay, I'll write an integration test to check this issue.

Norbert

[Norbert Bartels]

So, I added an integration Test that fetches `/me` with the `appsecret_proof` and this is working correctly. 

Perhaps there's an issue with publishing an information, but in general everything's fine. BTW I don't use the additional parameter.

I'll check the publishing and tell you want I find :)

Norbert

[Norbert Bartels]

An publishing integration test works, too. You can have a look at the current dev branch or here:
https://github.com/restfb/restfb/issues/243

Norbert

[Daniel Füvesi]

Hello Norbert,

Thank you again for the help. I'll check out your code and use it as it is (with different parameters of course). I hope it's going to work.

Have a nice day!

Daniel