React Native - Force user to use automatically date & time zone - react-native

I need to request the user to use the automatic time and date provided by the device so that it cannot be set manually. Is there any way to do it like when we request permissions to use the camera for example?
Thank you.
Example

Related

expire desktop_url generated through branch SDK after one time use

I want to expire web link ($desktop_url) generated through branch after clicking one time.
I tried using option of $one_time_use setting to true and set type to 1 but it is not working.
I am using https://github.com/BranchMetrics/branch-deep-linking-public-api
for link creation
I'm from Branch.io team. The "$one_time_use" control parameter is not supported anymore. You can use "$link_exp_date" and set the value in epoch date to make the link expire after a particular date.
Once the link expires, it will stop deep linking but will be capable of opening the app and websites.

How does the Unix Timestamp work?

I'm working on a simple project. The basic idea is that the user can only do something once a day. If I grab the SYSTEMTIME from the device, there is a chance the user will change the time on their phone to exploit the program.
So I don't want to use local/device time.
I looked into Googles API, but it looks like it returns the timezone and requests a timestamp. So that's not what I need.
But I found this website: http://www.convert-unix-time.com/api
This is perfect! But I don't know much about timezones/conversions/unix time/special clock things.
Is this grabbing the time from a server (that the user couldn't possibly alter)? Or is this grabbing the time from my computer and converting it to JSON output? Any additional information would be greatly appreciated.

While running event API on Jmeter, the server is updating event on old time frame

What I am doing is, I have recorded a download event from APP on Jmeter, when ever i am running this API on Jmeter, a server where any download event is recorded, is showing OR increment that download on that specific time when it was recorded.
How can I use this to get updated data on server when Jmeter is running.
Also need some information on to how to add different valid users on Jmeter.
Thanks,
Abhi
My expectation is that you pass a hard-coded timestamp as a request parameter so you need to figure out the parameter value and substitute the hard-coded timestamp with __time() function which produces current time in different formats controllable via SimpleDateFormat patterns.
Check out How to Use JMeter Functions article for comprehensive explanation
In regards to adding valid users, normally people stick to users which already exist in the system and use CSV Data Set Config to give each JMeter virtual user unique credentials of the real user.
If your application doesn't have that much users you might want to setup a separate JMeter script to get them created as re-using one login with large number of threads is not a good practice.

dynamically generated pass for pasbook

I have an application that generates a barcode using a third party library. This barcode is not static and changes every 30 seconds or so from within the app.
I'm aware the proper way is to get a signed pkpass file from your server to supply to passbook, and use APN or some sort of trigger within the iOS app to acquire a new barcode. But...due to certain reasons...some of this is not viable at the moment...
So...
Ideally, I would like to be able to allow the user so that every time they select my pass, I'm able to supply them with the dynamically generated barcode (or pkpass file) from the application.
Is such a way even remotely possible? I know it doesn't really conform to "best practice"...
the proper way is to get a signed pkpass file from your server to supply to passbook
This is not just the proper way, this is the ONLY way! Passes cannot be dynamically generated and signed on the device as it would require embedding of your Pass Type ID certificate into your app.
Also, if you are generating and replacing passes with such frequency, the Passbook App will throttle your pass to preserve your users' battery and bandwidth. This would prevent your pass from updating.
An ugly hack would be to educate users to use the "pull to refresh" function on the back of the pass, then serve a new pass in response to the user request, but this would require a degree of synchronisation between your server, your app and the pass.
Practically, if the barcode is changing every 30 seconds or so, then there is a probability that the barcode expires before the user is able to retrieve the pass and present it for scanning. Perhaps there is a better way to achieve what you want without such frequent rotation of the barcode?

Why Two Factor Authentication GeneratePin the wrong code?

I've implemented the code from http://satalketo.com/2013/09/mvc-two-factor-authentication/
Two Factor Authentication in ASP.NET MVC
when user register he gets a Secret Key and shown a QRcode he can scan to Google Authenticator,
all works fine and well, accept when the user tries to Log In the system the key always different from the one he enters. function GeneratePin at server side generate different key from that he gets in the Google Authenticator mobile app. I have no idea whats wrong, tried to think maybe time zone isn't correct ,my time zone is Jerusalem UTC + 2
I've looked through my code a fair bit and I can't see any reason why this should be an issue. The only reason that I can come up with is that one of the two devices is more than 30 seconds out of sync with UTC.
I have updated the source code to include checking against the 30 second periods either side of the current one to try and deal with any situations like that.
You can find the updated code on GitHub, which would be the best place to download the entire solution. My article Two Factor Authentication in ASP.NET MVC has been updated to include the code for checking the period either side.
If this doesn't help please let me know with any additional information you can think of.