opencpu | OpenCPU system for embedded scientific computation | Code Editor library

by opencpu R Version: v2.2.0 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | opencpu Summary

opencpu is a R library typically used in Editor, Code Editor, Jupyter applications. opencpu has no bugs, it has no vulnerabilities and it has low support. However opencpu has a Non-SPDX License. You can download it from GitHub.

Producing and Reproducing Results. A system for embedded scientific computing and reproducible research with R. The OpenCPU server exposes a simple but powerful HTTP api for RPC and data interchange with R. This provides a reliable and scalable foundation for statistical services or building R web applications. The OpenCPU server runs either as a single-user development server within the interactive R session, or as a multi-user Linux stack based on Apache2. The entire system is fully open source and permissively licensed. The OpenCPU website has detailed documentation and example apps.

Support

Quality

Security

License

Reuse

Support

opencpu has a low active ecosystem.

It has 621 star(s) with 106 fork(s). There are 56 watchers for this library.

It had no major release in the last 12 months.

There are 93 open issues and 279 have been closed. On average issues are closed in 75 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of opencpu is v2.2.0

Quality

opencpu has 0 bugs and 0 code smells.

Security

opencpu has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

opencpu code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

opencpu has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

opencpu releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

It has 6524 lines of code, 0 functions and 7 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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opencpu Key Features

No Key Features are available at this moment for opencpu.

opencpu Examples and Code Snippets

No Code Snippets are available at this moment for opencpu.

Community Discussions

Trending Discussions on opencpu

Is it possible to control the HTTP response behavior in openCPU?

Is the OpenCPU public server still available? API specs appear to have changed

How to use the results of a reactive expression in an output

Process can write to docker volume on Windows not on Ubuntu

QUESTION

Is it possible to control the HTTP response behavior in openCPU?

Asked 2021-Apr-17 at 08:30

According to the openCPU documentation, there are some default HTTP status codes and return types for a few situations. For example, when R raises an error, openCPU returns code 400 with a response type of text/plain.

While I believe it should be possible to control those things, is it possible to customize any of those things directly from R? For example, what if I wanted to return a JSON for a specific error in my R function, with a status code 503?

...

ANSWER

Answered 2021-Apr-17 at 08:30

You can change their R package behavior by forking opencpu or via a local copy i.e. not sure if package allows this like a functionality but the responses are configured in res.R

For e.g. this method in the link above uses 400 for error.

Source https://stackoverflow.com/questions/66991039

QUESTION

Is the OpenCPU public server still available? API specs appear to have changed

Asked 2020-Oct-22 at 09:45

I am trying to update a R app on the OpenCPU public server (https://cloud.opencpu.org/). With the new 2.2.0 OpenCPU release, all previous user payloads have apparently been wiped out (including mine). The CI webhook is still up and running though. However, it systematically rejects the R package that I am trying to push through. Note that my app/CI used to work very well with previous OpenCPU versions. Error given is "server timeout". Could not find any relevant info for this in the docs (OpenCPU help) Is the public CI flow still available? Are other devs experiencing the same issue?

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ANSWER

Answered 2020-Oct-11 at 11:49

I can now confirm that the OpenCPU server is actually fully operational. My web-app is now fixed. Works well. The problem was from my side.

Sharing here my findings, so it can be useful for others:

My custom R package was trying to import too many external packages. I trimmed down the imports list to the strict minimum.
I set my custom package lazyload flag to false

The CI webhook now processes any new push to the Github branch and the corresponding package gets rebuilt smoothly server side.

Source https://stackoverflow.com/questions/62756214

QUESTION

How to use the results of a reactive expression in an output

Asked 2020-Sep-02 at 21:11

I'm trying to build a Shiny App that monitors my running containers on a host machine, and here is what I have tried so far. Question is how can I display the outputs, in this case (docker ps -a) contents in the mainPanel? I'm new to Rshiny, so any help will be much appreciated!

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ANSWER

Answered 2020-Sep-02 at 21:11

You can use the other ssh_exec_internal instead to collect the output of your docker command. Something like:

Source https://stackoverflow.com/questions/63708700

QUESTION

Process can write to docker volume on Windows not on Ubuntu

Asked 2020-Sep-02 at 19:35

I have an image based on opencpu/base. It starts an apache based server, and then invokes R scripts everytime sombody calls an API endpoint.

One of those scripts tries to write a file to a location in the container. When I mount a folder into that location, it works on my Windows machine, but not on Ubuntu.

I've tried using named volumes on Ubuntu, but it does not work either. When I run bash inside the container interactively on Ubuntu, I can write and read the mounted volume just fine. But the apache process cannot.

Does anybody have some hints what could be going on here?

...

ANSWER

Answered 2020-Sep-02 at 19:35

When you log in interactively to the container, you will have root permissions. Apache usually runs as another user (www-data), and that user must have read permissions on the folder that you want it to read.

Make sure that the permissions of the folder matches the user that will read it.

Source https://stackoverflow.com/questions/63708264

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install opencpu

You can download it from GitHub.

Support

Official API documentationPaper: Towards a Universal Interface for Scientific Computing through Separation of ConcernsExample appsJavaScript client: opencpu.jsServer manual: PDF

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