Botkit: The URL couldn't be validated. Response does not match challenge "<numbers>".

[mofodox]

Hi,

I'm experiencing the callback URL issue created by Heroku. Based on my research on this issue is that the problem is the verify token. But I checked and my verify token setup correctly. I included my access token and verify in the .env file. When I tried running heroku local and it works locally. I've tested using page_token=<MY PAGE TOKEN> verify_token=<MY_VERIFY_TOKEN> node bot.js https://url-name.herokuapp.com/facebook/receive and it works too. But whenever I save the callback URL settings on Facebook, it gives the error message as mentioned on the title above.

Anyone can help me verify this?

Here's the screenshot to the error message. Let me know if you need more from me.

Thank you!

[robbawebba]

Hi @mofodox! Could you include your source code, or a link to your repository, so I can have a better understanding of how you're trying to connect with Facebook?

[manhcuong2903]

i have same issue up there.
here is my code

define('VERIFY_TOKEN', 'secret app');

$method = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : null;

if ($method == 'GET' && isset($_GET['hub_mode']) == 'subscribe' && isset($_GET['hub_verify_token']) == VERIFY_TOKEN && isset($_GET['hub_challenge'])) {
var_dump($method);
echo $_GET['hub_challenge'];
exit; }
else{
$updates = json_decode(file_get_contents("php://input"), true);
print_r($updates);
}

and one more thing can i ask what "verify_token" we put on Verify Token when create webhook on facebook??? thanks

[mofodox]

Hi @robbawebba, here's the link to my source code

[gameboyll]

Similar problem here! source

[jimmiebtlr]

Any word on this? Seeing it at the moment. A coworker has had the same code working, so would seem most likely something funky machine/exact version dependent.

[desokroshan]

Any updates on this. I too am getting the same error. There is another thread with same issue but even that is unresolved.

[alshaikh1]

has anyone got this fixed?

[jonchurch]

If like the poster youre running on heroku, set the env variables in the heroku configuration panel.

[F-Makhokha]

Im running to the same issue, has anyone gone through the same problem?, how did you guys fix this

The URL couldn't be validated. Response does not match challenge, expected value="1060150785", received="\"1060150785\""

Im running this on IIS and using mvc application

[peterswimm]

Closing with @jonchurch's answer