I am calling an API with cURL to the same domain (right now its localhost) with the following code
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
It is very slow, (up to 7 seconds) unless I add
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT,1);
I know its not simply the time it takes for the API to load, because if I request the API url in the browser, its almost instant.
How would you suggest troubleshooting this issue? Or should I not be using cURL at all?
Related
The following script just seems to run forever. It never gets to finished.
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
for ($i = 500; $i<3000; i++){
$url = "http://abcedfg.com/$i/index.html";
curl_setopt($ch, CURLOPT_URL, $url);
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
Try to wrap curl_init and curl_close in every request.
Like this:
function callurl($myurl) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $myurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_HEADER, true);
$response = curl_exec ($ch);
curl_close ($ch);
return $response;
}
And You'll have to call this function for every URL for example using a loop for.
Also try to test with only 10-20 requests before to go BIG.
Consider that 2500 requests, if every request takes 1 second, is translated to 41 minutes of activity.
No server is configured by default to keep a PHP session active for 40min. You can change this settings on the server if You have access to the server.
It's also possible that You're stuck because the server doesn't have so much resources for making so much requests at the same time. Ideally You should fine tune Your server configuration in order to achieve better performance.
Also consider to use
curl_multi_init for better performance and asynchronous requests.
But this will not guarantee that the request will be dropped because of TIMEOUT. So fine tune the server could be still needed.
Check also this post for how to encrease the time Limit:
It's better to close the file, everytime you open it, so that it realese the memory for the open file.
You can list all the urls by running the loop, and then do a multicurl request.
I am using curl request to hit the has-offers conversion url from my sevrver with the help of curl but it is not working.But when I call the same URL using a browser, it works.Is they can block CURL requests?.I am not getting why, is there any port blocking issue.
Below is php code to call url using curl request.
<?php
function curl_get_contents($url)
{
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
$url="http://paravey.go2cloud.org/aff_l?offer_id=12&aff_id=1000";
$contents = curl_get_contents($url);
echo $contents;
?>
Please help me thanks in Advance
The url you are curling is a pixel tracking url:
http://paravey.go2cloud.org/aff_l?offer_id=12&aff_id=1000
The aff_l endpoint looks for a cookie with session information (hence why it works in the browser).
If you want to create conversions with server side code, you will need to store the session identifier (the transaction_id) in your system and use the aff_lsr endpoint to send that data to HasOffers to trigger a conversion.
The url for this would look like this:
http://paravey.go2cloud.org/aff_lsr?transaction_id= VALUE
Where Value is the session identifier you have stored.
I would ask the HasOffers support team if you have more issues with this.
EDIT: The proper thing to do is just to send a response from Node-red as hardillb pointed out below.
My CURL request is working fine and instantly, but I simply need to have the page visit the url and not wait around for a response. I have tried every combination I can think of and my browser still sits waiting for a server response until timeout.
$url = 'http://example.com:1880/get?temperature='.$temperature;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, 1);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
// 3. execute and fetch the resulting HTML output
$output = curl_exec($ch);
// 4. free up the curl handle
curl_close($ch);
}
As mentioned in the comments.
The correct solution is to ensure your http-in node is paired with a http-response node in your Node-RED flow
I'm currently making a PHP site that gets his data from an API. At first cURL seemed to do that perfectly, but if the API returns an empty response (and we make the request again, because we can't give a correct response without it) it seems to spawn a child process. This didn't use too much CPU when developing, but in production it can get as high as 150% CPU load.
Code used to get data from the API:
while (empty($output )) {
$ch = curl_init();
set_curl($ch);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 8);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 4);
curl_setopt($ch, CURLOPT_URL, "http://domain.com");
$output = curl_exec($ch);
}
Is there any way to fix this?
Normally I Post data when I initiate cURL. And I wait for the response, parse it, etc...
I want to simply post data, and not wait for any response.
In other words, can I send data to a Url, via cURL, and close my connection immediately? (not waiting for any response, or even to see if the url exists)
It's not a normal thing to ask, but I'm asking anyway.
Here's what I have so far:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $MyUrl);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_to_send);
curl_exec($ch);
curl_close($ch);
I believe the only way to not actually receive the whole response from the remote server is by using CURLOPT_WRITEFUNCTION. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $MyUrl);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_to_send);
curl_setopt($ch, CURLOPT_WRITEFUNCTION, 'do_nothing');
curl_exec($ch);
curl_close($ch);
function do_nothing($curl, $input) {
return 0; // aborts transfer with an error
}
Important notes
Be aware that this will generate a warning, as the transfer will be aborted.
Make sure that you do not set the value of CURLOPT_RETURNTRANSFER, as this will interfere with the write callback.
You could do this through the curl_multi_* functions that are designed to execute multiple simultaneous requests - just fire off one request and don't bother asking for the response.
Not sure what the implications are in terms of what will happen if the script exits and curl is still running.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $MyUrl);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_to_send);
$mh = curl_multi_init();
curl_multi_add_handle($mh,$ch);
$running = 'idc';
curl_multi_exec($mh,$running); // asynchronous
// don't bother with the usual cleanup
Not sure if this helps, but via command-line I suppose you could use the '--max-time' option - "Maximum time in seconds that you allow the whole operation to take."
I had to do something quick and dirty and didn't want to have to re-program code or wait for a response, so found the --max-time option in the curl manual
curl --max-time 1 URL