I'm having some trouble with some development work for our classes using the Canvas API that is likely a beginner's issue.
The gist of the problem centers on my requests timing out. This could be a very newbie error, but it seems like my calls to the API (for current grade, missing assignments, last activity), bring in way more data that I need. I am not sure if this is what is slowing it down but it doesn't seem that I can even limit my calls to simply return the single fields I need (e.g. current_score). I use a Curl GET function that was posted here in the community a while back.
I am currently running PHP scripts via cron each morning. The load is about 40 classes and 600 students but I'm even at the point where I'm running 10 classes/150 students.
Any thoughts would be appreciated.
// The following function covers any API request using GET function curlGet($url) { global $canvasURL, $tokenHeader; $ch = curl_init($url); curl_setopt($ch, CURLOPT_URL, 'https://' . $canvasURL . '/api/v1/' . $url); // echo "https://$canvasURL/api/v1/$url"; curl_setopt ($ch, CURLOPT_HTTPHEADER, $tokenHeader); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // ask for results to be returned curl_setopt($ch, CURLOPT_VERBOSE, 1); //Requires to load headers curl_setopt($ch, CURLOPT_HEADER, 1); //Requires to load headers $result = curl_exec($ch); // var_dump($result); #Parse header information from body response $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($result, 0, $header_size); $body = substr($result, $header_size); $data = json_decode($body); curl_close($ch); #Parse Link Information $header_info = http_parse_headers($header); if(isset($header_info['Link'])){ $links = explode(',', $header_info['Link']); foreach ($links as $value) { if (preg_match('/^\s*<(.*?)>;\s*rel="(.*?)"/', $value, $match)) { $links[$match[2]] = $match[1]; } } }
