Added the option to specify the VIN number to Update_cars

README.rst

@@ -74,6 +74,9 @@ Usage is very basic.
    # update stats for all cars, and returns the list of cars. This will take
    # 60+ seconds per car
    cars = page.update_cars()
+
+   # Optionally you can call update_cars() with a vin of your choice to only update that car.
+   cars = page.update_cars('vin number')
 
    # Percent battery charge
    print(cars[0].percent)
@@ -98,13 +101,14 @@ provided.
    <EVCar vin="...", range=185 miles, bat=100%, plugged_in=True, mileage=903 miles, charging=Your battery is fully charged., charge_mode=Departure Based, eta=None, state="">
 
 config.ini must include your user and password for the mychevy site in the
-following format:
+following format, 'vin' is optional:
 
 .. code-block:: ini
 
    [default]
    user = my@email.address
    passwd = my@wes0mepa55w0rd
+   vin = KL821337VIN283498207
 
 The ``mychevy`` command also takes the ``-S`` flag which makes the selenium
 controlled web browser non headless during it's execution. This can be useful

mychevy/cli.py

@@ -27,7 +27,10 @@ def main(config=None, show_browser=None):
     click.echo("Loading data, this takes up to 2 minutes...")
     page.login()
     page.get_cars()
-    cars = page.update_cars()
+    if cfile.has_option("default","vin"):
+        cars = page.update_cars(cfile["default"]["vin"])
+    else:
+        cars = page.update_cars()
     for c in cars:
         click.echo(c)
 

mychevy/debug.py

@@ -35,7 +35,11 @@ def main(config=None, verbose=False):
         click.echo(c)
     click.echo("Updating cars with data")
     try:
-        page.update_cars()
+        if cfile.has_option("default","vin"):
+            page.update_cars(cfile["default"]["vin"])
+        else:
+            page.update_cars()
+
         click.echo("Displaying found cars with data")
         for c in page.cars:
             click.echo(c)

mychevy/mychevy.py

@@ -100,7 +100,8 @@ def from_json(self, data):
             res = json.loads(data.decode('utf-8'))
 
             # I've never actually seen serverErrorMsgs, but allow for them
-            if res["serverErrorMsgs"] or type(res["data"]) == str:
+            # The Error message I was seeing was data = {"messages":[],"serverErrorMsgs":[],"data":"SERVER ERROR"}
+            if res["serverErrorMsgs"] or type(res["data"]) == str or res['data'] == 'SERVER ERROR':
                 raise ServerError(res)
 
             d = res["data"]
@@ -110,7 +111,7 @@ def from_json(self, data):
             for a in CAR_ATTRS:
                 setattr(self, a, d[a])
 
-        except json.JSONDecodeError:
+        except ValueError:
             _LOGGER.exception("Failure to decode json: %s" % data)
         except KeyError as e:
             _LOGGER.exception("Expected key not found")
@@ -190,11 +191,18 @@ def get_cars(self):
 Location: %s
             """ % (self.cookies, res.content, res.history))
 
-    def update_cars(self):
+    def update_cars(self, vin=None):
         headers = {"user-agent": USER_AGENT}
         for c in self.cars:
-            url = EVSTATS_URL.format(c.vin, c.onstar)
-            res = requests.get(url, headers=headers,
-                               cookies=self.cookies, allow_redirects=False)
-            c.from_json(res.content)
+            if vin:
+                if vin == c.vin:
+                    url = EVSTATS_URL.format(c.vin, c.onstar)
+                    res = requests.get(url, headers=headers,cookies=self.cookies, allow_redirects=False)
+                    c.from_json(res.content)
+                    return [c]
+            else:
+                url = EVSTATS_URL.format(c.vin, c.onstar)
+                res = requests.get(url, headers=headers,cookies=self.cookies, allow_redirects=False)
+                c.from_json(res.content)
+
         return self.cars