---Todos---
GET : /api/v1/todos : Get todos
GET : /api/v1/todos/:todoId : Get todo by ID
POST : /api/v1/todos : Create todo
PATCH : /api/v1/todos/:todoId : Update todo
DELETE : /api/v1/todos/:todoId : Delete todo
--Events--
GET : /api/v1/events : Get events of todos
GET : /api/v1/events/:todoId : Get events of a particular todo