Calling a bound script's method using the Execution API - google-apps-script

Question

I'm using PropertiesServices as variables, specifically Document Properties , in order to replace some tokens like "{client name}". Since those properties are scoped to the bound script only, I'm looking for a way to modify their values from my PHP application.
Is it possible to call a bound script's function using the Execution API, or maybe from a standalone script? Otherwise, should I instead use the Script Properties instead (although the docs make me think you can't use them if the script isn't 'standalone).

Answer 1

It looks like if the user that the Execution API is running under has permission to the doc that bound script ran by the execution api can read document properties.
Here is my test:
Create a new spreadsheet. Create a new script. Add some data using the menu from onOpen. Run executeAPI inside the script. The log successfully shows the document properties.
function onOpen() {
var testMenu = SpreadsheetApp.getUi().createMenu("test")
testMenu.addItem("Add some data", "addData").addToUi();
testMenu.addItem("Preview data", "getData").addToUi();
}
function getData(){
var keys = PropertiesService.getDocumentProperties().getKeys();
SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().clear().appendRow(keys)
}
function returnData(){
return PropertiesService.getDocumentProperties().getKeys();
}
function addData(){
var DT = new Date().toString()
PropertiesService.getDocumentProperties().setProperty(DT,DT);
}
function executeAPI(){
var url = 'https://script.googleapis.com/v1/scripts/'+ScriptApp.getProjectKey()+':run';
var payload = JSON.stringify({"function": "returnData","parameters":[], "devMode": true});
var params={method:"POST",
headers:{Authorization: "Bearer "+ ScriptApp.getOAuthToken()},
payload:payload,
contentType:"application/json",
muteHttpExceptions:true};
var results = UrlFetchApp.fetch(url, params);
Logger.log(results)
}