How to complete the Create Maximum Number of Todos

This challenge requires you to max out the number of todos in the system.

The API Documentation says that A maximum of 20 todos is allowed.

There are many ways to do this and some automated execution is probably required but since there are only 20 allowed, you could do this easily in a REST Client.

Automated With Java RestAssured Example

I have an automated Java execution using Rest Assured to complete this:

C058DeleteAllTodosTest.java

This uses a bunch of abstractions to keep the code simple but the basic process is:

GET the /todos and find out how many there are already
Issue as many POST requests to create a todo as necessary to max it out


TodosApi todos = new TodosApi();
List<Todo> currentTodos = todos.getTodos();

int todosToCreate = 20 - currentTodos.size();

while( todosToCreate > 0 ){
    Todo aTodo = todos.createTodo("my title " + 
       todosToCreate, "description", true
       );
    idsToDelete.add(aTodo.id);
    todosToCreate--;
};

// create a to do to throw it over the edge
Todo createMe = new Todo();
createMe.title = "my title";
createMe.description = "my description";

Completing Challenge Using Client Tools

It is possible to complete this challenge manually by issuing all the requests by hand. This is easy to do because a TODO can be created with a single POST

POST to /todos with a simple payload {"title":"not unique"}

Resending this request would eventually result in:

{
  "errorMessages": [
    "ERROR: Cannot add instance, maximum limit of 20 reached"
  ]
}

Completing Challenge Using Client Tool Features

Some tools have the ability to issue Data Driven requests, so if you can parse the GET response and create a list of ids then you could use the data driven feature of the tool.

Most of the API client tools also have the ability to create scripts to achieve this.