Add a Service Route to the Microservice

Expose additional set of services on a separate URL.

add_service(path = ".", name, overwrite = FALSE)

Arguments

path	(character) Where is the project root folder?
name	(character) what is the service route name? For example, if name = "repository" then the set of services would become available at http://127.0.0.1:8080/repository/.
overwrite	(logical) Should existing destination files be overwritten?

Value

No return value, called for side effects.

Details

Lay the infrastructure for an additional set of services. That includes adding a unit test, adding an endpoint, and extending the entrypointy.

Note: add_service adds a service to pre-existing plumber microservice which you could deploy by calling use_microservice.

How It Works

Given a path (.) to a folder and a name (repository)

When add_service is called

Then the function creates the following files:

tests/testthat/test-endpoint-plumber-repository.R
inst/endpoints/plumber-repository.R

And updates the following files:

inst/entrypoints/plumber-foreground.R

When to Use

In scenarios where services are thematically linked to each other. Examples for themes that should be mounted separately:

• ‘forecasting’ and ‘anomaly detection’

• ‘user’ and ‘business’

See also

Other plumber microservice: use_microservice()

Examples

path <- tempfile()
dir.create(path, showWarnings = FALSE, recursive = TRUE)
use_microservice(path)

add_service(path, name = "repository")

list.files(path, recursive = TRUE)
#> [1] "DESCRIPTION"                                      
#> [2] "inst/configurations/plumber.yml"                  
#> [3] "inst/endpoints/plumber-repository.R"              
#> [4] "inst/endpoints/plumber-utility.R"                 
#> [5] "inst/entrypoints/plumber-background.R"            
#> [6] "inst/entrypoints/plumber-foreground.R"            
#> [7] "tests/testthat/helpers-xyz.R"                     
#> [8] "tests/testthat/test-endpoint-plumber-repository.R"
#> [9] "tests/testthat/test-endpoint-plumber-utility.R"