Webook API doesn't work (please urgent production app next week)

[Illyas Chihi]

Hi everyone,

I worked 3 days on this, i am trying to create a webhook on my bigbluebutton server. I follow the official documentation of webhooks: https://docs.bigbluebutton.org/development/webhooks/#installation

I have the checksum problem for no reason, i create my own function to generate the checksum (working perfectly fine with main bbb api), so i think the problem is comming from my parameters construction. I really tried every combination, using 'create' before parameters to construct the checksum like the main api create for room. Please o really need help for this to get in production next week. I construct my parameter with this way:

```

const queryStringWebhook = `callbackURL=${encodeURIComponent(callbackURL)}&meetingID=${encodeURIComponent(meeting_id)}`;

const checksumWebhook = GenerateChecksum(secret, `create${queryStringWebhook}`);

const urlWebhook = `${baseURL}/create?${queryStringWebhook}&checksum=${checksumWebhook}`;

```

[Jay Padaliya]

hi 

you need to use "hooks/create" instead "create" in checksum

const checksumWebhook = GenerateChecksum(secret, `hooks/create${queryStringWebhook}`);

[Illyas Chihi]

Hi Jay,

Thank you for your answer, i saw nothing about 'hooks/create' in documentation, i will try this today and give you a feedback about it.

[Jay Padaliya]

hi Illyas

it is basically path of url after main base url
http://yourserver.com/bigbluebutton/api/[from here path goes to checksum]

[Illyas Chihi]

Hi Jay,

In documentation, it says that the url for webhook is http://yourserver.com/bigbluebutton/api/hooks
I will try generate the checksum with "hooks/create[params]" and tell you what's going on 

[prlanzarin]

As mentioned, create URL is wrong.
I recommend first testing the webhooks creation procedure via API Mate to certify you're doing it correctly.
See https://docs.bigbluebutton.org/3.0/development/webhooks/#test-it.

```
Follow the steps:

• Open your webhooks catcher of choice and copy its endpoint URL.
• Open API Mate and configure your server and shared secret.
• On the menu "Custom parameters", there's a field "Custom API calls:". Add these values to it:
  • hooks/create
  • hooks/list
• On the same menu section, add the following values to "Custom parameters:":
  • callbackURL=<your webhook catcher URL>
    
    
• On the API Mate, click on the "custom call: hooks/create" link. It should respond with a success message.
• On the API Mate, click on the "custom call: hooks/list" link to check if your hook was really registered.
• Create a meeting and join it using the API Mate.
• Do stuff inside the meeting and check your webhooks endpoint to see if it received the callbacks.

```