How to use Filesystem, HTTP, block in blockly while programming in blockly

[Zahra]

I am using blockly in packet tracer and have generated the sensor values now I want to save it in some file like of any extension how can I save it  


I thought may be with filesystem block present over there but not able to program because I don't know it's method  of use can any one help me

i want to know how to  write to file 
variable write to file

in arduino how  variable save to text file 

network at pkt tracer.jpg (74.41 KiB) Viewed 533 times

pulseoximeter blockly program.jpg (64.9 KiB) Viewed 533 times

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