This folder contains a small R package that can be installed inside an OpenCPU server.
The package is an R service that is exposed as a REST API automatically by OpenCPU
Once OpenCPU is running the service can be accessed by making a POST call to the following URL: http://localhost:8004/ocpu/library/stanopencpu/R/render
and passing a "dataframe" parameter with the following example format: [["eventdate","cpuUsr"],[1543420833037,23.221],[1543420834202,0.025]]
It will then proceed to render an internal R markdown notebook by using the passed data and expose it as an html that will be accessible by a generated URL of this kind: http://localhost:8004/ocpu/tmp/x0e940fd91cd23f/files/output.html
Option 1: using helpers inside the opencpu directory: to launch the opencpu server: ./launch.sh to open a shell inside the server: ./shell.sh to reinstall stanopencpu after changes are made (inside the opencpu shell): R CMD INSTALL /home/opencpu/dev
Option 2:
a Dockerfile that installs OpenCPU and Rstudio is included in this folder, the Dockerfile will also install the stan-opencpu service so that it is available upon running the docker container with the OpenCPU server.
To build the docker image: docker build -t stanopencpu .
To run the a docker container created from the previous image use the command below. While developing it's useful to map the directory where your source code resides into a directory inside the docker container. To do this change the "-v /your/dev/folter:root/dev" part of the command to point to your development directory.
docker run --name stanopencpu -t -p 8004:8004 -v /your/dev/folder:/root/dev stanopencpu
To open a shell inside the container:
docker exec -i -t stanopencpu /bin/bash
How to deploy an app inside OpenCPU https://www.opencpu.org/posts/scoring-engine/ OpenCPU server instructions https://opencpu.github.io/server-manual/opencpu-server.pdf Download OpenCPU, including docker image https://www.opencpu.org/download.html OpenCPU JSON RPC https://cran.r-project.org/web/packages/jsonlite/vignettes/json-opencpu.pdf