I am developing an R shiny App, and the app will receive video from the user and upload to AWS s3 bucket. I am not clear about how does this video been uploaded if I use R connect to deploy the app. Does it go through https or http? I know it will be saved to the R shiny server and then upload to s3 bucket but if there is a way to directly save the video to s3 bucket?
From my own research, the caveat I have found is that you must use the writeBin() function on your upload file, saving it in a temporary directory, before saving it in the aws.s3 bucket.
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Im tring to create a shiny app that read and online onedrive xlsx file and show some things, but for the moment Im unable to read the onedrive xlsx file, I already explore the Microsoft365R and I can conect to my onedrive and I even can open the fil but... what it does is from r open a tab in chrome with the excel file.
I need the file in the local enviroment of r.. this its beacause the shiny app must be deploy in a web server, that every time the app runs it reads the update the file.
library(Microsfot365R)
odb <- get_business_onedrive()
odb$open_file("lcursos.xlsx")
Also this its a business account, so I also have to put the username and key to acces each file, that its beacause use the simple url doesnt work, it says Error 403 FORBIDEEN.
Any ideas?
Thank you so much!
Use the download_file() method to download the file to your local machine:
odb$download_file("lcursos.xlsx")
You can set the location of the download with the dest argument. Once it's downloaded, open it with the xls reader package of your choice. I suggest either openxlsx or readxl.
Note that if your file is password protected, your options are limited. See this question for possible solutions.
I have created an app that I want to share on shinypps.io
Within the code for the I use the functions load, write.csv, and read.csv which read and write files to folders called outputs and data. My app works fine when I run it locally but when I deploy it I get the error:
cannot open compressed file 'data\Catchments.RData', probable reason 'No such file or directory'
I tried using a folder called www to store these but still had error messages. Is there a way to use these functions when sharing an app on shinyapps.io?
There's no possibility of using directories in shinyapp.io. An easy fix is to place an upload button inside the app, perform all the manipulations you need and finally download the result with a download button again. Getting the data from a remote server is also a good option.
As shown in this Article
"Local vs remote storage
Before diving into the different storage methods, one important distinction to understand is local storage vs remote storage.
Local storage means saving a file on the same machine that is running the Shiny application. Functions like write.csv(), write.table(), and saveRDS() implement local storage because they will save a file on the machine running the app. Local storage is generally faster than remote storage, but it should only be used if you always have access to the machine that saves the files.
Remote storage means saving data on another server, usually a reliable hosted server such as Dropbox, Amazon, or a hosted database. One big advantage of using hosted remote storage solutions is that they are much more reliable and can generally be more trusted to keep your data alive and not corrupted.
When going through the different storage type options below, keep in mind that if your Shiny app is hosted on shinyapps.io, you will have to use a remote storage method for the time being. In the meantime, using local storage is only an option if you’re hosting your own Shiny Server. If you want to host your own server, here is a guide that describes in detail how to set up your own Shiny Server."
In my application I am attempting to download from Firebase as a file object so I may use the File.copy method to save the image or video locally as a file. Is there anyway to download from Firebase as a generic File object?
Check the documentation here, you should be able to download the file.
I am currently working on an personal application where, I upload documents/pictures/videos from my phone to Cloud Storage. During this time my computer sitting at home is consistently running a shell script waiting for a new document to be uploaded to Cloud Storage, after it finds an uploaded file, it downloads it does some work to it, and then deletes it.
I can figure out how to upload and connect my application to Firebase, but I am not sure if its possible for a shell script to do the remaining work.
Should I look into some other service to do this, or another method?
thank you for your help!
You can use a command line program called gsutil to upload and download files from a Cloud Storage bucket. This should be easy to use from a shell script.
In a VM server environment, my R script needs to export a png file directly to Amazon S3 - does anyone know if there is a way to do it directly in R? (As opposed a separate listener process that picks up new files and moves them to S3 storage).