Move to new JSON POST format

briar-cli.py

@@ -52,8 +52,11 @@ def get_message_stdin(token):
     while True:
         body = input(PROMPT)
         if len(body) > 0:
-            res = requests.post(URL, headers=get_auth_header(token), data={'message': body}).json()
-            print_message(res)
+            res = requests.post(URL, headers=get_auth_header(token), json={'text': body})
+            if res.status_code == 200:
+                print_message(res.json())
+            else:
+                print("Error: %d" % res.status_code)
 
 
 def print_message(message):