CODEWITHSUNDEEP
rshinyshiny-server
info_seekeR
info_seekeR

Reputation: 1326

Reading a local file into a ShinyApp hosted on server

I have a shiny app hosted on a server, and part of its functionality is to read local files. I realise there is the very helpful fileIput function in shiny package - and I may use it instead - but for now I would like to learn about using file paths. The problem I face follows:

I am using the tm package, which allows users to read text files either from a directory (using DirSource("filePath"))or using inidividual files (using VectorSource("filePath")).

initialCorpus<- reactive({
            if(input$confirm==0)
            return()
            isolate({
                if(input$corpusType=="dir"){
                    myPath<- input$filePath
                    myCorpus<- Corpus(DirSource(myPath))
                    myCorpus
                    }
                else if(input$corpusType=="vector"){
                    myPath<- input$filePath
                    myFile<- scan(file=myPath,what="character",n=-1, sep="\n")
                    myCorpus<- Corpus(VectorSource(myFile))
                    myCorpus
                    } 
...

The same function works fine and reads in text files when I am using my shiny app locally. However, when I upload my app to shinyapp, and then try to upload a local file, I am unable to read in files.

So, why is it not possible to read in local files by shinyApp when the file path is used? It may be a basic question, but I want to learn.

Thanks in advance.

PS. I would be happy to link to my application if required, it's just that I would like to show my application when it's properly functioning.

Upvotes: 0

Views: 1500

Answers (1)

Julien Navarre
Julien Navarre

Reputation: 7830

I think you can solve your problem by isolating the part where you source your files : isolate({DirSource("filePath")})

Upvotes: 1

Related Questions