React Todo App Load Todos

You goal is to implement a simple Todo App that will save all changes to the API.

Here is the working example

The task consists of 3 part:

• (This repo) Load todos
• Add and Delete
• Toggle and Rename

In this 1st part you will:

• learn the markup in App.tsx
• learn src/utils/fetchClient.ts implementations and use it (or delete use any other approaches to interact with API)
• implement todos loading
• implement error messages
• implement filtering by status
• copy the final code to the 2nd part

General principles

Keep your logic as simple as possible!

Improve user experience:

• hide or disable elements that can't be used at the moment
• focus text fields, so user could start typing without extra clicks
• prevents users from doing the same action twice accidentally (disable controls when action is in progress)
• show spinners on todos immediately to notify the user that action is in progress
• update todos only after successful save to the API (tests expect such behaviour)
• in case of any error show a notification (and hide it after delay)
• clear input values on success and preserve and focus on error

Tests

Tests help you to check if your implementation is correct.

• tests are grouped by functionality
• .skip after it or describe disables a test or a group of tests
• if you don't understand the test by its name, read its code in cypress/integration/page.js
• if you can't fix failed test ask mentors for help
• delays are important for tests, so make sure every request has 100 - 200 ms delay

Load Todos by userID

1. Register a user by your email here
2. Save the received userId in the api/todos.ts and use it to load todos
3. reate some todos using the Demo Page
4. Load your todos when the App is loaded
5. hide the list and the footer if there are no todos yet;

Show Error Messages

In case of any error show the notification with an appropriate message at the bottom

• the notification can be closed with the close button (add the hidden class, DON'T use conditional rendering);
• automatically hide the notification after 3 seconds;
• hide the notification before any next request;

You can use a wrong todos URL to test the error.

Filter Todos by Status

Filter todos by status All / Active / Completed:

• all todos should be visible by default
• use the selected class to highlight a selected link;

Common Instructions

• Install Prettier Extention and use this VSCode settings to enable format on save.
• Implement a solution following the React task guideline.
• Use the React TypeScript cheat sheet.
• Replace <your_account> with your Github username in the DEMO LINK and add it to the PR description.