diff --git a/minindn/minindn_play/consts.py b/minindn/minindn_play/consts.py
new file mode 100644
index 0000000..60e80e7
--- /dev/null
+++ b/minindn/minindn_play/consts.py
@@ -0,0 +1,34 @@
+from enum import Enum
+
+class Config:
+    AUTH_FILE = "/tmp/ndnplay-auth"
+    PLAY_URL = "https://play.ndn.today"
+    SERVER_HOST = "0.0.0.0"
+    SERVER_HOST_URL = "127.0.0.1"
+    SERVER_PORT = 8765
+    PCAP_CHUNK_SIZE = 512
+
+# MessagePack Keys
+class WSKeys(str, Enum):
+    MSG_KEY_FUN = 'F'
+    MSG_KEY_ID = 'I'
+    MSG_KEY_RESULT = 'R'
+    MSG_KEY_ARGS = 'A'
+
+class WSFunctions(str, Enum):
+    GET_TOPO = 'get_topo'
+    OPEN_ALL_PTYS = 'open_all_ptys'
+    DEL_LINK = 'del_link'
+    ADD_LINK = 'add_link'
+    UPD_LINK = 'upd_link'
+    DEL_NODE = 'del_node'
+    ADD_NODE = 'add_node'
+    GET_FIB = 'get_fib'
+    GET_PCAP = 'get_pcap'
+    GET_PCAP_WIRE = 'get_pcap_wire'
+    PTY_IN = 'pty_in'
+    PTY_OUT = 'pty_out'
+    PTY_RESIZE = 'pty_resize'
+    OPEN_TERMINAL = 'open_term'
+    CLOSE_TERMINAL = 'close_term'
+    MONITOR_COUNTS = 'monitor_counts'
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