added new method "exec"

hr50api.py

@@ -3,9 +3,11 @@ import sys
 import getopt
 import time
 import serial
+from subprocess import check_output
 
 app = Flask(__name__)
 
+exec_cmd = "/home/pi/bin/toggle_antenna.sh"
 serial_port = '/dev/ttyUSB0'
 baud = 19200
 
@@ -107,19 +109,26 @@ def get_status():
     return jsonify(vlcd)
 
 
+@app.route('/exec')
+def exec_shell_command():
+    out = check_output([exec_cmd, ""])
+    '''
+    x = jsonify(isError= False,
+                    message= "Success",
+                    statusCode= 200,
+                    data= out.decode("utf-8") ), 200
+    print(x)
+    '''
+    return out
+
 @app.route('/', methods=['GET'])
 def send_command():
+    ret = ""
     try:
-        cmd = request.args.get('cmd', default="", type=str)
-        data = send_cmd_via_serial(cmd)
-        return jsonify(isError= False,
-                        message= "Success",
-                        statusCode= 200,
-                        data= data), 200
+        ret = request.args.get('cmd', default="", type=str)
+        send_cmd_via_serial(ret)
     except Exception as e:
-        return jsonify(isError= True,
-                        message= "Error",
-                        statusCode= 200,
-                        data= e), 200
+        ret = "ERROR"
+    return ret