Has anyone tried reading and writing a file in a single app? If so, please share this woud be a huge help

Hi @asifarshad , Yes, We are able to do write and read operations in a single App using legato-18.9.0. See that i have attached sample application sampleApp.zip (1.6 KB) where we are writing and reading from a text file. Is this is what you expected? If not, Please specify your requirements. Note:…

Thank you for you reply. I am string sensor reading to a file. they need to be stored for 6 hours and the board will be in ULPM. Then I need to push them to the cloud. Are files the best approach for this? Furthermore can I create a one app that can provide handles to other apps to read and write da…

Hi @asifarshad I feel config tree option would be better as it will be better to store and retrieve the data. But i think config tree is not preferred for storing the huge amount of data. If you are not aware how to use config tree, You can check below legato.io link on config tree: https://docs.l…

how to read a text file present in local machine(i.e., outside the app) , can any one guide me with some sample

you can see here: [image] How to write data to a file outside sandbox Legato Application Framework From Application Definition .adef - Legato Docs Note Even though the file system object appears in the app’s sandbox it still needs permissions settings on the file. File …

File read and Write in Legato 18.09.0

Legato Application Framework

jyijyi April 13, 2021, 10:40am 7

you can see here:

Topic		Replies	Views
Sharing same file between two Apps Legato Application Framework	3	508	November 19, 2018
Problem in Acessing files from sandbox	8	56	January 27, 2026
How to write data to a file outside sandbox Legato Application Framework	13	5044	October 21, 2021
Store Files Persistent; Cannot write to hardlinked folder? Legato Application Framework	4	713	September 16, 2020
Legato sandbox app not able to access file	1	505	October 5, 2018

File read and Write in Legato 18.09.0

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