dont use accesstoken in auth-file because it could already be invalid…

… on first call after restart

HISTORY.md

@@ -1,5 +1,8 @@
 ## version history
 
+### 1.1.2
+- Fixing "Invalid access token"-issue on restart (https://github.com/skrollme/homebridge-eveatmo/issues/81) 
+
 ### 1.1.1
 - Thanks to a PR (https://github.com/skrollme/homebridge-eveatmo/pull/76) from @Tellicious:
   - Add new flag to enable/disable AirQuality sensor for indoor modules

lib/netatmo-api.js

@@ -29,7 +29,7 @@ var netatmo = function (args, homebridge) {
         if (fs.existsSync(filename)) {
             let rawData = fs.readFileSync(filename);
             let tokenData = JSON.parse(rawData);
-            access_token = tokenData.access_token;
+            // access_token = tokenData.access_token; // dont read access_token because it may be already invalid on first use after restart
             refresh_token = tokenData.refresh_token;
         } else {
             refresh_token = args.refresh_token;
@@ -182,20 +182,20 @@ netatmo.prototype.authenticate_refresh = function () {
         }
 
         body = JSON.parse(body);
-        refresh_token = body.refresh_token;
 
+        fs.writeFileSync(filename, JSON.stringify({
+            //'access_token': body.access_token, // dont store access_token because it may be already invalid on first use after restart
+            'refresh_token': body.refresh_token
+        }));
+
+        refresh_token = body.refresh_token;
         if(access_token == null) {
             access_token = body.access_token;
             this.emit('authenticated');
         } else {
             access_token = body.access_token;
         }
 
-        fs.writeFileSync(filename, JSON.stringify({
-            'access_token': body.access_token,
-            'refresh_token': body.refresh_token
-        }));
-
         if (body.expires_in) {
             setTimeout(this.authenticate_refresh.bind(this), (body.expires_in - 300) * 1000); // try refreshing the tokens 5min early
         }