How i write one or two bytes into flash memory using fds lib?

Question

I am using nRF52840 with sdk 15.0 version. I am able to read OR write data into flash using fds library. But now i want to write one or two bytes into flash and read this bytes, how i know the length of that byte while reading data from flash. I know fds library need to at least 4 bytes 
 For example i want to write integer value 1 or 0. How this possible write and also read with length of read data. 
 Thanks......

awneil · Accepted Answer

Have you studied the FDS documentation ? 
 It tells you that FDS works with Records - not individual bytes. 
 So you create a Record, and store your data into that Record. 
 Then you can read the Record, and update the Record. 
 infocenter.nordicsemi.com/.../lib_fds_functionality.html 
 See also: infocenter.nordicsemi.com/.../lib_fds_usage.html 
 Have you looked at the FDS example ?

How i write one or two bytes into flash memory using fds lib?

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