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https://github.com/ropensci/vcr

Record HTTP calls and replay them
https://github.com/ropensci/vcr

mocking r r-package rstats testing unit-testing vcr

Last synced: 3 months ago
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Record HTTP calls and replay them

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README 

        
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output: github_document

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vcr

===



```{r echo=FALSE}

knitr::opts_chunk$set(

  comment = "#>",

  collapse = TRUE,

  warning = FALSE,

  message = FALSE

)

```



[![cran checks](https://badges.cranchecks.info/worst/vcr.svg)](https://cloud.r-project.org/web/checks/check_results_vcr.html)

[![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)

[![R-check](https://github.com/ropensci/vcr/workflows/R-check/badge.svg)](https://github.com/ropensci/vcr/actions/)

[![codecov](https://codecov.io/gh/ropensci/vcr/branch/main/graph/badge.svg)](https://app.codecov.io/gh/ropensci/vcr)

[![rstudio mirror downloads](https://cranlogs.r-pkg.org/badges/vcr)](https://github.com/r-hub/cranlogs.app)

[![cran version](https://www.r-pkg.org/badges/version/vcr)](https://cran.r-project.org/package=vcr)



Easier HTTP testing! Record HTTP requests and responses on disk and replay them for the unit tests of your R package, to make them independent from any connection, faster, and more complete. An R port of the Ruby gem [vcr](https://github.com/vcr/vcr)



## Elevator pitch



```{r child='man/rmdhunks/elevator-pitch.Rmd'} 

```



## Installation



CRAN version:



```{r eval=FALSE}

install.packages("vcr")

```



Development version:



```{r eval=FALSE}

# install.packages("pak")

pak::pak("ropensci/vcr")

```



```{r}

library("vcr")

library("crul")

```



## Docs



Check out the [HTTP testing book](https://books.ropensci.org/http-testing/) and the [vcr vignettes](https://docs.ropensci.org/vcr/articles/).



## Supported HTTP libraries



* [crul][]

* [httr](https://httr.r-lib.org/)

* [httr2](https://httr2.r-lib.org/)



## Getting Started



```{r child='man/rmdhunks/setup.Rmd'} 

```



## Usage



```{r child='man/rmdhunks/basic-usage.Rmd'} 

```



## Terminology



```{r child='man/rmdhunks/glossary.Rmd'} 

```



## Workflows



```{r child='man/rmdhunks/workflows.Rmd'} 

```



### How it works in lots of detail



See the [vignette about internals](https://docs.ropensci.org/vcr/articles/internals.html)



### Just want to mock and not store on disk?



You're looking for [webmockr][], that vcr itself uses. 

`webmockr` only matches requests based on criteria you choose, but does not cache HTTP interactions to disk as `vcr` does.



## Configuration



```{r child='man/rmdhunks/configuration.Rmd'} 

```



## Matching/Matchers



```{r child='man/rmdhunks/matching.Rmd'} 

```



## vcr in other languages



The canonical `vcr` (in Ruby) lists ports in other languages at 



## Note about missing features



```{r child='man/rmdhunks/missing-features.Rmd'} 

```



## Example packages using vcr



* [allcontributors][]

* [bold][]

* [qualtRics][]

* [rgbif][]

* [ritis][]

* [rredlist][]

* [rtoot][]

* [rtweet][]

* [wikitaxa][]

* [worrms][]



## Contributors



* [Scott Chamberlain](https://github.com/sckott)

* [Aaron Wolen](https://github.com/aaronwolen)

* [Maëlle Salmon](https://github.com/maelle)

* [Daniel Possenriede](https://github.com/dpprdan)



## Meta



* Please [report any issues or bugs](https://github.com/ropensci/vcr/issues)

* License: MIT

* Get citation information for `vcr` in R doing `citation(package = 'vcr')`

* Please note that this package is released with a [Contributor Code of Conduct](https://ropensci.org/code-of-conduct/). By contributing to this project, you agree to abide by its terms.



[allcontributors]: https://github.com/ropenscilabs/allcontributors

[bold]: https://github.com/ropensci/bold

[crul]: https://docs.ropensci.org/crul/

[qualtRics]: https://github.com/ropensci/qualtRics

[rgbif]: https://github.com/ropensci/rgbif

[ritis]: https://github.com/ropensci/ritis

[rredlist]: https://github.com/ropensci/rredlist

[rtoot]: https://github.com/gesistsa/rtoot

[rtweet]: https://github.com/ropensci/rtweet

[webmockr]: https://docs.ropensci.org/webmockr/

[wikitaxa]: https://github.com/ropensci/wikitaxa

[worrms]: https://github.com/ropensci/worrms