Description
I followed your docs step by step, and now I get Signature is invalid when trying to join to a meeting.
Browser Console Error
I only see this error:
{
errorCode: 3712
reason: "Signature is invalid."
type: "JOIN_MEETING_FAILED"
}
Which Web Meeting SDK version?
2.0.1 (“@zoomus/websdk”: “^2.0.1”,)
Meeting SDK Code Snippets
Here’s my C# Controller code to generate signature:
static readonly char[] padding = { '=' };
[HttpGet]
public object GenerateToken(string meetingNumber)
{
var apiKey = Config.GetSetting("ZoomApiKey");
var apiSecret = Config.GetSetting("ZoomApiSecret");
String timestamp = (ToTimestamp(DateTime.UtcNow.ToUniversalTime()) - 30000).ToString();
var role = "0"; // 1 for host, 0 for participant
string message = String.Format ("{0}{1}{2}{3}", apiKey, meetingNumber, timestamp, role);
apiSecret = apiSecret ?? "";
var encoding = new System.Text.ASCIIEncoding ();
byte[] keyByte = encoding.GetBytes(apiSecret);
byte[] messageBytesTest = encoding.GetBytes(message);
string msgHashPreHmac = System.Convert.ToBase64String(messageBytesTest);
byte[] messageBytes = encoding.GetBytes(msgHashPreHmac);
using (var hmacsha256 = new HMACSHA256(keyByte))
{
byte[] hashmessage = hmacsha256.ComputeHash(messageBytes);
string msgHash = System.Convert.ToBase64String(hashmessage);
string token = String.Format("{0}.{1}.{2}.{3}.{4}", apiKey, meetingNumber, timestamp, role, msgHash);
var tokenBytes = System.Text.Encoding.UTF8.GetBytes(token);
return new
{
Signature = System.Convert.ToBase64String(tokenBytes).TrimEnd(padding)
};
}
}
public static long ToTimestamp (DateTime value) {
long epoch = (value.Ticks - 621355968000000000) / 10000;
return epoch;
}
As you can see, I just copied your code from docs and restructured it inside a controller. I also changed the return type. That’s all.
To Reproduce(If applicable)
Steps to reproduce the behavior:
- Create a JWT app in marketplace.zoom.us
- Create a C# controller to return signature (using doc’s C# example)
- Create a react component to use that signature and meeting number + password to join a meeting
- Provide API Key from app’s credentials page to both react and C# controller
- Provide API secret from app’s credentials page
Screenshots
I tried to attach images, but your system complained that:
Sorry, you can’t embed media items in a post.
Device (please complete the following information):
- Device: [Lenovo Thinkpad]
- OS: [Ubuntu 20.04, react docker => node:14-buster-slim, C# docker => Debian GNU/Linux 10 (buster)]
- Browser: [Chrome]
- Browser Version [95.0.4638.54 (Official Build) (64-bit)]
Additional context
To be honest, your documentation is very confusing and vague. I did not have a good developer experience up until here. But I also thank you for creating such an amazing platform.