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Flutter REST API Crash Course
Intro to REST, the nCoV 2019 REST API, and REST Client
RESTful APIs: The Basics (3:24)
The nCoV 2019 Coronavirus API: Setup instructions, API Keys and Access Tokens (4:51)
REST Client for VS Code: Initial setup & sending requests (5:10)
REST Client: Using Environment Variables and excluding sensitive data with .gitignore (4:28)
REST Client: Adding the remaining requests (4:25)
Building an API Service with the Dart http package
App Architecture Overview (2:48)
Installing the http package (1:14)
Saving the API key + GitHub source code + the Error Lens extension (2:37)
The API class (3:32)
The APIService class: requesting an access token (4:04)
Parsing the http response and retrieving the access token (2:47)
Using the API Service to show the access token (3:14)
Adding the remaining endpoints to the API class (2:01)
Requesting and parsing data from the remaining endpoints (5:21)
Using the APIService class to show endpoint data (3:51)
Recap on the APIService class (2:19)
Building a Data Repository and creating the basic UI
The Data Repository (2:44)
Loading and refreshing the access token when needed (2:50)
Adding a Provider for the DataRepository (2:58)
Creating a basic dashboard UI (3:47)
Creating a custom card widget to show endpoint data (4:01)
Loading the initial endpoint data from the API (2:28)
Adding a refresh indicator (2:25)
Loading data from multiple endpoints and polishing the UI
Loading data from multiple endpoints with Future.wait (2:44)
The EndpointsData class (2:19)
Improving the DataRepository class with generics and function arguments (4:20)
Showing all the cards (2:56)
Adding the icon assets to the project (1:38)
Updating the cards layout, image and color (6:17)
Date formatting and reading the last updated date from the server
Showing when the data was last updated: client vs server approach (1:10)
Parsing date information from the API response data (1:59)
Creating a new data model to hold the date and value from the API (3:19)
Showing the last updated date in the UI (2:30)
Formatting dates with the "intl" package (5:08)
Add thousands' separators with the NumberFormat class (2:14)
Error handling & caching data with Shared Preferences
Error handling overview, and understanding the call stack (6:17)
Showing an alert dialog to the user (5:21)
Completing the error handling code (3:19)
Introduction to data persistence with Shared Preferences (1:46)
Writing a DataCacheService (8:32)
Integrating the DataCacheService in the DataRepository (3:14)
Injecting the DataCacheService in main.dart (4:15)
Hot fix: The getter 'date' was called on null (5:08)
Conclusion & next steps (1:49)
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Add thousands' separators with the NumberFormat class
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