Task: ExpressJS Task API

This project is a simple ExpressJS task API that allows users to create, retrieve, update, and delete tasks. The API is built using ExpressJS and MongoDB for data storage.

Expectations

TASK 1

The project is expected to have the following API endpoints:

• Retrieve all tasks (GET /api/tasks)
• Create a task (POST /api/tasks)
• Retrieve a single task (GET /api/tasks/:id)
• Update a task (PATCH /api/tasks/:id)
• Delete a task (DELETE /api/tasks/:id)
• Mark task as completed (PATCH /api/tasks/:id/completed)

TASK 2

Complete the two question in the controller/index.js. The getMaxSum and uniqueChars function

Question 1 - getMaxSum

Write a function called getMaxSum that takes an array of integers as input and returns the maximum sum of any contiguous subarray of the given array. If the array is empty or contains only negative integers, the function should return 0. The getMaxSum function takes an array of integers as input and returns the maximum sum of any contiguous subarray of the given array. If the array is empty or contains only negative integers, the function should return 0.

Example Input and Output

Example 1

Input

 getMaxSum([1, -3, 2, 1, -1]);

output

 3

Question 2 - uniqueChars

Complete the uniqueChars that takes a string as input and returns a new string containing only the unique characters in the input string, in the order that they first appear. If the input string is empty or contains only whitespaces, the function should return an empty string.

// For example, if the input string is "hello world", the function should return "helo wrd".

Example Input and Output

Example 1

Input

 uniqueChars("hello world");

output

 "helo wrd"

Example 2

Input

 uniqueChars("");

output

 ""

Instructions

To run the project, follow the steps below:

• Clone the repository and navigate to the project root directory.
• Run npm install to install the project dependencies.
• Run npm start to start the development server.
• Use a tool such as Postman or Insomnia to test the API endpoints.

Tests

Tests have been provided to ensure that the API endpoints function correctly. To run the tests, follow the steps below:

• Run npm install to install the project dependencies.
• Run npm test to run the tests.

Contributors

Owoputi Kehinde

License NIL