Add API client lib

api/client/const.go

@@ -0,0 +1,30 @@
+package client
+
+// message types
+const (
+	msgRequestGet    = "get"
+	msgRequestQuery  = "query"
+	msgRequestSub    = "sub"
+	msgRequestQsub   = "qsub"
+	msgRequestCreate = "create"
+	msgRequestUpdate = "update"
+	msgRequestInsert = "insert"
+	msgRequestDelete = "delete"
+
+	MsgOk      = "ok"
+	MsgError   = "error"
+	MsgDone    = "done"
+	MsgSuccess = "success"
+	MsgUpdate  = "upd"
+	MsgNew     = "new"
+	MsgDelete  = "del"
+	MsgWarning = "warning"
+
+	MsgOffline = "offline" // special message type for signaling the handler that the connection was lost
+
+	apiSeperator = "|"
+)
+
+var (
+	apiSeperatorBytes = []byte(apiSeperator)
+)