[owmweather] simplify error handling

Author: kidneyhex

apps/owmweather/lib.js

@@ -27,9 +27,8 @@ function parseWeather(response) {
     json.weather = weather;
     require("Storage").writeJSON('weather.json', json);
     if (require("Storage").read("weather")!==undefined) require("weather").emit("update", json.weather);
-    return undefined;
   } else {
-    return /*LANG*/"Not OWM data";
+    throw /*LANG*/"Not OWM data";
   }
 }
 
@@ -43,12 +42,8 @@ exports.pull = function(completionCallback, errorCallback) {
   let uri = "https://api.openweathermap.org/data/2.5/weather?lat=" + location.lat.toFixed(2) + "&lon=" + location.lon.toFixed(2) + "&exclude=hourly,daily&appid=" + settings.apikey;
   if (Bangle.http){
     Bangle.http(uri, {timeout:10000}).then(event => {
-      let result = parseWeather(event.resp);
-      if (result === undefined) {
-        if (completionCallback) completionCallback();
-      } else {
-        if (errorCallback) errorCallback(result);
-      }
+      parseWeather(event.resp);
+      if (completionCallback) completionCallback();
     }).catch((e)=>{
       if (errorCallback) errorCallback(e);
     });