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Iterating with plumber

Getting your plumber API up and running takes a bit of fiddling around. Rather than launching swagger each time, and testing your arguments manually, you can use the following workflow:

  1. Draft your plumber function
  2. Run start_plumber(path, port)
  3. Check that it works as expected using httr
  4. Fiddle with your plumber function if something is off
  5. Repeat 2-4 until you get it right!

If you have ready-built plumber functions, you can use test them out directly in a single RStudio session by opening up a new terminal with start_plumber. I’ve included a two functions (random_praise and random_data) in a sample plumber file in the inst folder of this repo. Depending on what seed you set, the output changes:

# devtools::install_github("isteves/plumbplumb")
library(plumbplumb) 
library(httr)

plumber_path <- system.file("plumber.R", package = "plumbplumb")
port <- 8484
start_plumber(plumber_path, port)

bar <- GET(glue::glue("http://127.0.0.1:{port}/random_praise?seed=2"))
content(bar)

foo <- GET(glue::glue("http://127.0.0.1:{port}/random_praise?seed=3"))
content(foo)

Same with the data:

baz <- GET(glue::glue("http://127.0.0.1:{port}/random_data?seed=2"))
content(baz)

boo <- GET(glue::glue("http://127.0.0.1:{port}/random_data?seed=3"))
content(boo)

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