httpuv | HTTP and WebSocket server package for R | HTTP library

by rstudio C Version: v1.6.11 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | httpuv Summary

httpuv is a C library typically used in Networking, HTTP applications. httpuv has no bugs, it has no vulnerabilities and it has low support. However httpuv has a Non-SPDX License. You can download it from GitHub.

httpuv provides low-level socket and protocol support for handling HTTP and WebSocket requests directly from within R. It uses a multithreaded architecture, where I/O is handled on one thread, and the R callbacks are handled on another. It is primarily intended as a building block for other packages, rather than making it particularly easy to create complete web applications using httpuv alone. httpuv is built on top of the libuv and http-parser C libraries, both of which were developed by Joyent, Inc.

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Quality

Security

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Reuse

Support

httpuv has a low active ecosystem.

It has 216 star(s) with 84 fork(s). There are 23 watchers for this library.

It had no major release in the last 12 months.

There are 43 open issues and 167 have been closed. On average issues are closed in 75 days. There are 9 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of httpuv is v1.6.11

Quality

httpuv has 0 bugs and 0 code smells.

Security

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

httpuv code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

httpuv 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

httpuv releases are available to install and integrate.

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

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httpuv Key Features

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httpuv Examples and Code Snippets

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Community Discussions

Trending Discussions on httpuv

after adding geom_text_repel, "Error: Invalid input: time_trans works with objects of class POSIXct only"

R mutate won't add columns

Missing import(Rcpp) in NAMESPACE leads to C++ library error during R CMD check of tests

Error while trying to extract Spotify data using R

st_read path for shinyapp in R

Analysis of emojis used in tweets with specific hashtags or keywords in R

SVM prediction running fine in my computer but not in R Connect

Shiny Azure WebApp Authenticate as user to Azure SQL Server

How to use renv package in shiny app to avoid installing new packages on shiny server?

Running plumber API on Docker container

QUESTION

after adding geom_text_repel, "Error: Invalid input: time_trans works with objects of class POSIXct only"

Asked 2022-Mar-17 at 13:11

I have tried adding a label to one set of points (lnrmssd) on my ggplot chart, but when I used the geom_text_repel function the graph will not appear. If I remove it the graph appears as it should. I have tried a few different variations from tutiorals but each time I have had the same result.

Here is the line of code giving me issues:

...

ANSWER

Answered 2022-Mar-17 at 13:11

You haven't mapped the x variable to geom_text_repel. Since all of your layers have the same x mapping, you should include them in the initial ggplot call to avoid repetition. Same with the data argument:

Source https://stackoverflow.com/questions/71512241

QUESTION

R mutate won't add columns

Asked 2022-Mar-16 at 20:02

I am trying to use the mutate function to form three new columns to my data. I have tried defining some of the data and it has not changed it. I have looked at previous examples but all seem to use a group function before using mutate. I think I do not need to create a group before using mutate as it would not fit with my data.

Here is the R code I am using:

...

ANSWER

Answered 2022-Mar-16 at 20:01

hrv <- read_excel(here("hrvdata.xlsx"))
hrv <- na.omit(hrv)

hrv <- hrv %>% mutate("HRVSD" = sd(lnrmssd, na.rm = T),
    "HRVRM" = rollmean(lnrmssd,7, na.pad = T, align = 'right'),
      upper_limit = round(HRVRM + 1.5 * HRVSD, 3),
             lower_limit = round(HRVRM - 1.5 * HRVSD, 3),
             lower_limit2 = round(HRVRM - .75 * HRVSD, 3))

Source https://stackoverflow.com/questions/71503442

QUESTION

Missing import(Rcpp) in NAMESPACE leads to C++ library error during R CMD check of tests

Asked 2022-Jan-25 at 20:28

Summary

I am working on an R package that uses Rcpp. I took over the project with many issues and I am trying to fix them. The problem with this is that I don't know how to create a minimal example for reproduction in this situation because the package is quite large and I was not involved in the early setup. I would appreciate suggestions on how to go about it, I am new to writing packages in R/Rcpp.

I got it into a state that it passes automated R CMD checks both on macOS and Linux in Github Actions.

There is a deprecated file named "R/simulate.R" that contains one function that is no longer used. I am trying to remove this file.

The relevant lines are:

...

ANSWER

Answered 2022-Jan-25 at 20:22

The deprecated file was the only file that had the annotation #' @import Rcpp that made sure devtools::document() would include import(Rcpp) in the NAMESPACE file.

I solved the problem by annotating the main R function of the package that uses Rcpp functions with #' @import Rcpp.

After that, devtools::document() cleaned up the autogenerated files and left the package intact.

I would greatly appreciate if someone who understands R package development better, could explain what went wrong and maybe link to the best resources that explain annotations and the NAMESPACE file! Thank you

Source https://stackoverflow.com/questions/70836797

QUESTION

Error while trying to extract Spotify data using R

Asked 2021-Oct-20 at 18:52

I'm trying to extract data from my spotify account using R.

When running the script i'm getting the following error: Error in token$sign(req$method, req$url): attempt to apply non-function

This is the script i'm trying to run:

...

ANSWER

Answered 2021-Oct-20 at 18:52

Note: the following solution is a hack, and is only a workaround. This probably shouldn't be used in any sort of production code. You should either get the spotifyr package maintainer to update the package, or create your own cloned package as described here:

It looks to me that the spotifyr::scopes() function, which get_spotify_authorization_code() relies on, points to this page: https://developer.spotify.com/documentation/general/guides/scopes/. This url comes back with a 404 Error, and looks like it no longer exists.

I believe it should be pointing here instead: https://developer.spotify.com/documentation/general/guides/authorization/scopes/

You could technically overwrite the scopes function in the spotifyr namespace, using assignInNamespace, with a new function including the proper url. The below works for me when I test it:

Source https://stackoverflow.com/questions/69649706

QUESTION

st_read path for shinyapp in R

Asked 2021-Oct-03 at 00:33

Usually when st_read is used you put path in dsn, but in case of shiny if you put a full path inside dsn it will give an error as that file path does not exist on the server. So, now I put the shapefile in the www folder, but I don't know what path to put in dsn so that the app picks up the shapefile.

How can I fix this?

Current function code in the app:

...

ANSWER

Answered 2021-Oct-03 at 00:33

Thanks to Guillaumme for his comment, so I was able to fix the problem by first moving the shiny app to a R project. Then in the app code write st_read as follows, and the app is able to pick up the shapefile when its published on shinyapps.io.

Source https://stackoverflow.com/questions/69415642

QUESTION

Analysis of emojis used in tweets with specific hashtags or keywords in R

Asked 2021-Oct-01 at 17:52

I'd like to explore Twitter's API to do sentiment analysis via the emojis used in tweets containing certain keywords or hashtags. (Like what PRISMOJI do: https://twitter.com/PRISMOJI?s=09)

But I've never done this before - any pointers on the script?

I'm using rtweet to explore the API, but open to other tools - but hopefully in R.

UPDATE

So I've written some code and solved my original issue. Woop!)

...

ANSWER

Answered 2021-Oct-01 at 17:52

When setting my access keys and tokens, I had mistakenly used access_token_secret rather than access_secret.

Source https://stackoverflow.com/questions/69380605

QUESTION

SVM prediction running fine in my computer but not in R Connect

Asked 2021-Aug-06 at 04:41

I’m creating a Shiny app that uses the caret package to do some SVM free-text analysis.

The app runs fine without any error in my computer. I’m using R x64 4.0.4 and R studio 1.3.1093

I’m deploying app to an internal enterprise server https://rconnect.xxxx.com/connect/#/apps/####

This app is deployed in the server and started.
But when I reach the line where I run the train function:

...

ANSWER

Answered 2021-Aug-05 at 01:15

Errors like this in Shiny apps are almost always a result of missing packages, which the logs confirm.

Turns out in this case I think the missing package is kernlab, which I only found by reading the documentation given here: https://topepo.github.io/caret/train-models-by-tag.html#Support_Vector_Machines. It's a suggested package, not imported, so the command suggested in the comments by heds1 would sort this out.

Source https://stackoverflow.com/questions/68659043

QUESTION

Shiny Azure WebApp Authenticate as user to Azure SQL Server

Asked 2021-May-17 at 16:06

I'm building a WebApp with a SQL DB as Backend. I'm Deploying the both parts on Azure, as Azure Webapp and SQL Server.

The SQL server is sercured with Azure AD (AAD). So only Users in a Group can access the DB.

So I'm trying to setup a workflow where the Webapp login the user and collect his Access token. And then uses the token to Query the SQL server.

I've registreted the App in AAD, where it is authorized to read the user ID and impersonate as the user.

I've the following code which is working local. But I can't get it to work deployed locally in a Docker Image.

...

ANSWER

Answered 2021-May-17 at 16:06

Connecting to SQL Server with an OAuth token requires use of a pre-connection attribute (basically a pointer to the token string). There is an open feature request at the odbc Github repo for this. I encourage you to upvote it, hopefully if it's popular enough it will get implemented.

Source https://stackoverflow.com/questions/67570465

QUESTION

How to use renv package in shiny app to avoid installing new packages on shiny server?

Asked 2021-Jan-25 at 23:51

I wanted to test renv package for shiny app. here is my dummy app :

...

ANSWER

Answered 2021-Jan-25 at 23:51

https://community.rstudio.com/t/shiny-server-renv/71879/2 may be relevant -- you likely want to call renv::isolate() before copying your project folder.

Source https://stackoverflow.com/questions/65892306

QUESTION

Running plumber API on Docker container

Asked 2020-Dec-16 at 21:45

I would like to run plumber API on Docker container.

I tried the following two dockerfiles:

The first Dockerfile

...

ANSWER

Answered 2020-Dec-16 at 21:45

In this output:

Source https://stackoverflow.com/questions/65329940

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Vulnerabilities

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Install httpuv

You can download it from GitHub.

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