getAllTodos
query { getAllTodos { name completed date id } }
getCompletedTodos
query { getCompletedTodos { name completed date id } }
getTodo
query { getTodo(id: 1) { name completed date id } }
addTodo
mutation { addTodo(name: "Complete Final Assignment") { name completed date id } }
completeTodo
mutation { completeTodo(id: 2) { name completed date id } }