Deploying Shiny app automatically using Batch file

[Ted Hwang]

#------------------------------- Shiny Update

  library(rsconnect)

  library(data.table)

  library(xts)

  

  adj.or.not.vec <- c(TRUE,FALSE)

  

  #--------------- pair case

  for(adj.or.not in adj.or.not.vec){

    

    setwd(shiny.data.dir)

    saveRDS(adj.or.not,"adj.or.not.RDS")

    

    setwd(shiny.pairs.dir)

    source("Shiny.Main.R")

    setwd(shiny.pairs.dir)

    

    if(adj.or.not==TRUE){deployApp(appName = "traded_pairs",appTitle = "My Application")

    }else{

      deployApp(appName = "traded_pairs_raw",appTitle = "My Application")

      

    }

    

  }

 

Hi, the attached code runs well in RStudio, but when executed by a 'BAT' file with the following code, it fails to run. 

@echo off

"C:\Program Files\R\R-3.3.3\bin\R.exe" CMD BATCH --vanilla --slave "Y:\Archived Shared Drive\Ted Codes\Equities.Pairs.Trading.System\main.2.R"

I update my Shiny app on a daily basis as I process updated prices coming from the data source, and the input stocks we are interested in can change on a daily basis.

Any suggestions or advice are appreciated.

Thanks.  

[Joe Cheng [RStudio]]

What's shiny.data.dir? And what error or output do you get?

[Ted Hwang]

Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric

Attaching package: 'xts'

The following objects are masked from 'package:data.table':

    first, last

Preparing to deploy application...DONE

Uploading bundle for application: 170185...Error in contrib.url(repos, type) : 

  trying to use CRAN without setting a mirror

Calls: deployApp ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>

Execution halted

The above is the output I get after running the BAT file. Shiny.data.dir is a directory path ("character") well defined before the code I attached in the original post, and Shiny.Main.R is a program that should be run before app.R runs. The end part of Shiny.Main.R ends with setwd(Shiny Apps directory with 'app.R'). Any advice, please? Thanks.