Record a Shiny session — record_app • shinyValidator

Start Shiny app as local R subprocess. Connect the shinyloadtest recorder and connect Chrome to the recorder. Manipulate the headless Chrome and close connection. shinycannon replays

Usage

record_app(
  headless_actions = NULL,
  timeout = NULL,
  workers = 5,
  port = randomPort(max = 3500),
  ...
)

Arguments

headless_actions: Custom code passed as an expression to manipulate the app with headless web browser, for instance app$set_inputs(obs = 200); app$run_js('1+1');. See https://rstudio.github.io/shinytest2/reference/AppDriver.html to get all available methods. If NULL, the app will undergo a classic random Monkey test session, taking a screenshot right after loading and after the monkey test. We do not recommend running a monkey test if your app is pointing to a database, unless the pipeline CI/CD runs in a dedicated test environment.
timeout: Time to wait after starting the subprocess (s). Useful is you know how much time the app takes to load. Defaults to 10 seconds locally and 20 seconds on CI/CD.
workers: Number of workers for shinycannon. Default to 5.
port: Port to start the app, default to httpuv::randomPort().
...: Pass extra parameters to run_app_audit. This is useful if you work with packages like golem.