Add startWebRequestSync to App Lab (hidden from the toolbox)

[joshlory]

Sample usage:

button("btn", "load");
textLabel("txt", "");

onEvent("btn", "click", function(event) {
  setText("txt", "Loading...");
  
  var result = startWebRequestSync("https://api.openweathermap.org/data/2.5/weather?q=Chicago");
  setText("txt", result);
});

[islemaster]

👍 Prototype!

[islemaster]

What happens if the web request fails? It seems like it should throw - do we get that for free with nativeIsAsync or do we need to handle it here where we're wrapping the callback?

[joshlory]

The behavior of startWebRequest is that it calls the callback with the error. I matched that behavior for the synchronous version (the error message is returned to the caller).

[joshlory]

[joshlory]

Request from @gtw!