At /packets, return 10 records by default and add n=x to return x packets.

README.md

@@ -17,8 +17,9 @@ You can use screen to detach the session.
 3. Access the API from whatever other system you want.
 
 ## Endpoints:
--`/packets` - gives the most recent packets, with the fields from the Dire Wolf
+-`/packets` - gives the most recent packets, sorted descending by time received.
-User Guide.
+    - argument `n` will return a specific number of packets, default 10. E.g.,
+    `https://digi.w1cdn.net/aprs_api/packets?n=1` returns one packet.
 
 Example of an object packet sent by W1CDN-1 and digipeated by K0UND-2:
 ```

api_app.py

@@ -1,4 +1,4 @@
-from flask import Flask
+from flask import Flask, request
 from flask_restful import Resource, Api, reqparse
 from datetime import date, timedelta
 import configparser
@@ -67,9 +67,13 @@ def select_all_frames(conn):
 
 class Packets(Resource):
     def get(self):
-        #data = read_logs(log_folder)
+        try:
+            n = int(request.args.get('n'))
+        except:
+            n = 10
+        print(n)
         conn = get_db_connection()
-        data = select_all_frames(conn)
+        data = select_all_frames(conn)[-n:]
         # Sort by created date, descending (https://stackoverflow.com/a/45266808)
         data.sort(key=operator.itemgetter('created'), reverse=True)
         #data.sort(key=created, reverse=True)

kiss_and_db.py

@@ -82,7 +82,7 @@ def main():
         path=["WIDE1-1"],
         info=b">Hello World!",
     )
-    ki.write(frame)
+    #ki.write(frame)
 
     # Watch for new packets to come in
     while True: