added reload support

README.md

@@ -1,2 +1,24 @@
 # dl-router
 router of download URLs
+
+currently designed for app folder to be mapped into a usgi container.
+see sample launch script
+`launch_redirect.sh`
+
+expects `userdata.csv` in app folder.. map as needed.
+
+run local
+```
+cd app
+export FLASK_APP=main
+python -m flask run --host 0.0.0.0 --port 5000
+```
+
+## API
+
+`/status`
+meant for simplee healtcheck.  returns 200 OK
+
+`/reload`
+Flushes cache and reloads userdata file.  Return JSON of what new userdata is
+

app/download_image_map.py

@@ -1,16 +1,20 @@
 #!/usr/bin/env python
 import csv
+
+
 class Parser():
     def __init__(self, csv_file=None):
         self._parsed_data = None
         self.csv_file = csv_file
         # other useful things here
+
     @property
     def parsed_data(self):
         if self._parsed_data is not None:
             return self._parsed_data
         self._parsed_data = self.get_data()
         return self._parsed_data
+
     def transform_csv_data(self, data):
         transformed = {}
         key = ""
@@ -22,14 +26,18 @@ class Parser():
                 print("Missing fields in data '{0}'. Error: '{1}'".format(line, e))
                 break
         return transformed
+
     def import_csv(self):
         with open(self.csv_file) as f:
             csvreader = csv.reader(f, delimiter='/')
             data = list(csvreader)
         return data
+
     def get_data(self):
         data = self.import_csv()
         return self.transform_csv_data(data)
 
-parser = Parser('userdata.csv')
-print(parser.parsed_data)
+    def reload(self):
+        self._parsed_data = None
+        self.get_data()
+        return self.parsed_data

app/main.py

@@ -36,11 +36,19 @@ def status():
     return "OK"
 
 
+@app.route('/reload')
+def reload():
+    global dl_map
+    dl_map = parser.reload()
+    return dl_map
+
+
 @app.route('/', defaults={'path': ''})
 @app.route('/<path:path>')
 def catch_all(path):
     return redirect(get_redirect(path, "127.0.0.1"), 302)
 
+
 if __name__ == "__main__":
     # Only for debugging while developing
     app.run(host='0.0.0.0', debug=False, port=80)