implemented apihandler class and functions

telegram_bot/api_handler.py

@@ -5,3 +5,50 @@ __author__ = "Florian Kellermann, Linus Eickhoff"
 __date__ = "16.03.2022"
 __version__ = "0.0.1" 
 __license__ = "None"
+
+#side-dependencies: none
+#Work in Progress
+
+import sys
+import os
+import requests as r
+
+class API_Handler:
+    #class for communicating with webservice to get data from database
+    def __init__(self, db_adress):
+        self.db_adress = db_adress
+        return
+
+    def get_auth_token(self, email, password):
+        payload = {'email': email, 'password': password}
+        with r.Session() as s:
+            p = s.post(self.db_adress + "/user/login", json=payload)
+            if p.status_code == 200:
+                self.token = p.json()["data"]['token']
+                return p.json()["data"]['token']
+            else:
+                #print server response
+                print(p.text)
+                return None
+
+    def get_user_keywords(self, token, user_id):
+        with r.Session() as s:
+            headers = {'Authorization': 'Bearer ' + token + ":" + user_id}
+            p = s.get(self.db_adress + "/api/keywords", headers=headers)
+            keywords_json = p.json()["data"]
+            keywords = []
+            for keyword in keywords_json:
+                keywords.append(keyword["keyword"])
+            return keywords
+
+
+if __name__ == "__main__":
+
+    print("This is a module for the telegram bot. It is not intended to be run directly.")
+    handler = API_Handler("https://aktienbot.flokaiser.com/api")
+    try:
+        handler.get_auth_token("bot@example.com", "bot")
+    except None:
+        print("Could not connect to server.")
+
+    sys.exit(1)