How to pass parameter(s) to timed trigger function in library script

Question

I have created a function which trigger every after 30 mins, and I want to pass some parameter. I have one library which returns carHistory, and my spreadsheet from where I

Answer 1

Properties are a not-shared resource; each script has their own set of Properties which are not shared with other scripts. This behaviour affects how you can handle properties in a Library, as described in Resource Scoping.

A not-shared resource means that both library and the including script have built-in access only to their instance of the resource. However, a library can provide access to its not-shared resources by having explicit functions that operate on them.

In other words; the library's not-shared properties can be exposed to the main script by library functions.

This function can be used to set up the operating parameters for your library trigger function:

/**
 * Set name,value pairs of parameters for library function.
 *
 * @param {Object}  parameters  Object with named properties to be
 *                              used as library function parameters.
 */
function setParameters( parameters ) {
  var props = PropertiesService.getUserProperties();
  for (var key in parameters) {
    var value = parameters[key];
    props.setProperty(key, value);
  }
}

You'd use it like this:

function startOnce(){
  var uProps = {
    'Maker':'Honda',
    'Number':'US-xxx'
  });

  Library1.setParameters(uProps);
  Library1.carHistory();
}