ios – The right way to generate ZAK token to Begin a gathering

I’m making an attempt to combine the newest zoom SDK iOS(5.10.1.3038) in my software, Beforehand I attempted to login utilizing e-mail and password together with assembly Id to start out the assembly. I do know that performance is deprecated, So I’m utilizing the OAuth authentication additionally I would like ZAK token to host the assembly, I attempted to generate the ZAK token utilizing URLScheme (PKCE) OAuth however Its not working. Additionally I attempted utilizing the API additionally to generate the ZAK token nonetheless getting error code as 4700. I’ve some doubt

1. ought to ZAK token be generated from cellular, In that case anybody can please
   information easy methods to generate.
2. Ought to I authorize every time to start out a gathering, if that’s the case which account
   must be used authorize our admin account has round 100 consumer
   ought to we use these or the non-public account of the shoppers.

I referred this to generate the ZAK by way of API
https://market.zoom.us/docs/api-reference/zoom-api/strategies/#operation/userToken

 //Pattern for Begin Param interface
MobileRTCMeetingStartParam * param = nil;

MobileRTCMeetingStartParam4WithoutLoginUser * consumer = 
[[MobileRTCMeetingStartParam4WithoutLoginUser alloc] init];
consumer.userType = MobileRTCUserType_APIUser;
consumer.meetingNumber = kSDKMeetNumber;
consumer.userName = kSDKUserName;
consumer.userID = kSDKUserID;
consumer.isAppShare = appShare;

consumer.zak = kZAK;
param = consumer;

MobileRTCMeetError ret = [ms startMeetingWithStartParam:param];