Add condition to certificate generation

[mine-class]

Hi I'm struggling with something. I need that the course certificate is only generated if an external condition is meet (student have to sign a document in an external system). I have created a very simple API hosted in the same server that receives the wp user_login and the course_id (and a key) and answers if he had signed the document in the external system (true or false). I was wondering if you guys can develop something that allow to the student to obtain his certificate only if the API says that he has trully signed (signed=true), and if he has not signed (signed=false) show him a message provided by the same API.  

• example API request: https://guru-class.com/api/signed/?key=AAA&user=BBB&course=CCC

 

• example API response signed: {"data":{"user":"BBB","course":"CCC","signed":true},"metaData":[]}

  -example API response not signed: {"data":{"user":"BBB","course":"CCC","signed":false,"message":"this is a custom html message"},"metaData":[]}   Thanks in advance

[logan]

Hello, where do you want to add this

1. when user completes 100% and completes the course OR
2. when admin assigns this manually from the admin section.

[mine-class]

When the user finished and approve the course.

[logan]

here it is: add_filter('bp_get_course_check_course_complete_stop',function($flag,$id,$user_id){ $response = wp_remote_get('https://guru-class.com/api/signed/?key=AAA&user='.$user_id.'&course='.$id); $message = ''; if(!empty($response) && !is_wp_error( $response )){ $body = wp_remote_retrieve_body( $response ); if(!empty($body)){ if(!$body->data->signed){ $flag = 0;   }else{ $flag = 1; $message = 'Document not signed'; } }else{ $flag = 1; $message = 'Some error appeared from signing server'; } }else{ $flag = 1; $message = 'Some error appeared from signing server'; } if($flag){ echo $message; } },10,3);

[mine-class]

Hi The code works well, it throws the message but it still generate the certificate. How can we make to not generate the certificate until the API says "signed=true" ?  

[logan]

use this code instead of above: add_filter('bp_get_course_check_course_complete_stop',function($flag,$id,$user_id){   $response = wp_remote_get('https://guru-class.com/api/signed/?key=AAA&user='.$user_id.'&course='.$id);   $message = '';   if(!empty($response) && !is_wp_error( $response )){   $body = wp_remote_retrieve_body( $response );   if(!empty($body)){   if(!$body->data->signed){   $flag = 0;       }else{   $flag = 1;   $message = 'Document not signed';   }   }else{   $flag = 1;   $message = 'Some error appeared from signing server';   }   }else{   $flag = 1;   $message = 'Some error appeared from signing server';   }   if($flag){   echo $message;   } return $flag; },999,3);

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