{"code":124,"message":"The Token can't be used before"} when trying to create a meeting using JWT

API and Webhooks
3

Hi @MaxM,

Thank you for your response. I have been able to resolve the issue by using below code posted by @k.krylov on How to create JWT token using REST api in c# to generate the JWT Token. Posting the code below,

public static string ZoomToken()
{
// Token will be good for 20 minutes
DateTime Expiry = DateTime.UtcNow.AddMinutes(20);

string ApiKey = ConfigurationManager.AppSettings["ClientIdJwt"];
string ApiSecret = ConfigurationManager.AppSettings["ClientSecretJwt"];

int ts = (int)(Expiry - new DateTime(1970, 1, 1)).TotalSeconds;

// Create Security key  using private key above:
var securityKey = new Microsoft.IdentityModel.Tokens.SymmetricSecurityKey(Encoding.UTF8.GetBytes(ApiSecret));

// length should be >256b
var credentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256);

//Finally create a Token
var header = new JwtHeader(credentials);

//Zoom Required Payload
var payload = new JwtPayload
{
      { "iss", ApiKey},
      { "exp", ts },
};

var secToken = new JwtSecurityToken(header, payload);
var handler = new JwtSecurityTokenHandler();

// Token to String so you can use it in your client
var tokenString = handler.WriteToken(secToken);

      return tokenString;
}
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