This is the starter code for the final assessment project for Udacity's React & Redux course.
The _DATA.js
file represents a fake database and methods that let you access the data. The only thing you need to edit in the _DATA.js
file is the value of avatarURL
. Each user should have an avatar, so you’ll need to add the path to each user’s avatar.
Using the provided starter code, you'll build a React/Redux front end for the application. We recommend using the Create React App to bootstrap the project.
To get started developing right away:
- install all project dependencies with
npm install
oryarn install
- start the development server with
npm start
oryarn start
├── README.md - This file.
├── package.json # npm package manager file. It's unlikely that you'll need to modify this.
├── public
│ ├── favicon.ico # React Icon, You may change if you wish.
│ ├── manifest.json #DO NOT MODIFY
│ └── index.html # DO NOT MODIFY
└── src
├── components
│ ├── App.js # This is the root of your app.
│ ├── AddQuestion # The add question component
│ ├── AnsweredQuestion # This component shows the answered question
│ ├── Error # the error component
│ ├── Home # this is the default landing page it displays the unanswered and answered
│ ├── LeaderBoard # this is the Leader board component
│ ├── Login # This is the login screen
│ ├── Logout # this is the logout component
│ ├── MainContainer # this is the main container
│ ├── Nav # This is the navigation component
│ ├── UnansweredQuestion # This component shows the unanswered question
│ ├── UserInfo # This is the user info component
│ └── ViewQuestions #This is the view question poll of unanswered questions
├── actions
│ ├── AuthUser # handles setting the authed user
│ ├── Questions # handles retrieving questions, adding question and adding answer to a question
│ ├── Shared # handles shared actions
│ └── Users # handles retrieving the users
├── middleware
│ ├── index.js # exports default middleware by using `applyMiddleware()`
│ └── logger.js # creates a logger middleware
├── reducers
│ ├── authedUserReducer
│ ├── index.js # contains combine reducers
│ ├── questionsReducer
│ └── usersReducer
├── utils
│ └── _DATA.js # A JavaScript API for the provided Udacity backend. Instructions for the methods are below.
├── index.css # Global styles.
└── index.js # You should not need to modify this file. It is used for DOM rendering only.
There are two types of objects stored in our database:
- Users
- UnansweredQuestions
Users include:
Attribute | Type | Description |
---|---|---|
id | String | The user’s unique identifier |
name | String | The user’s first name and last name |
avatarURL | String | The path to the image file |
questions | Array | A list of ids of the polling questions this user created |
answers | Object | The object's keys are the ids of each question this user answered. The value of each key is the answer the user selected. It can be either 'optionOne' or 'optionTwo' since each question has two options. |
UnansweredQuestions include:
Attribute | Type | Description |
---|---|---|
id | String | The question’s unique identifier |
author | String | The author’s unique identifier |
timestamp | String | The time when the question was created |
optionOne | Object | The first voting option |
optionTwo | Object | The second voting option |
Voting options are attached to questions. They include:
Attribute | Type | Description |
---|---|---|
votes | Array | A list that contains the id of each user who voted for that option |
text | String | The text of the option |
Your code will talk to the database via 4 methods:
_getUsers()
_getQuestions()
_saveQuestion(question)
_saveQuestionAnswer(object)
_getUsers()
Method
Description: Get all of the existing users from the database.
Return Value: Object where the key is the user’s id and the value is the user object.
_getQuestions()
Method
Description: Get all of the existing questions from the database.
Return Value: Object where the key is the question’s id and the value is the question object.
_saveQuestion(question)
Method
Description: Save the polling question in the database.
Parameters: Object that includes the following properties: author
, optionOneText
, and optionTwoText
. More details about these properties:
Attribute | Type | Description |
---|---|---|
author | String | The id of the user who posted the question |
optionOneText | String | The text of the first option |
optionTwoText | String | The text of the second option |
Return Value: An object that has the following properties: id
, author
, optionOne
, optionTwo
, timestamp
. More details about these properties:
Attribute | Type | Description |
---|---|---|
id | String | The id of the question that was posted |
author | String | The id of the user who posted the question |
optionOne | Object | The object has a text property and a votes property, which stores an array of the ids of the users who voted for that option |
optionTwo | Object | The object has a text property and a votes property, which stores an array of the ids of the users who voted for that option |
timestamp | String | The time when the question was created |
_saveQuestionAnswer(object)
Method
Description: Save the answer to a particular polling question in the database.
Parameters: Object that contains the following properties: authedUser
, qid
, and answer
. More details about these properties:
Attribute | Type | Description |
---|---|---|
authedUser | String | The id of the user who answered the question |
qid | String | The id of the question that was answered |
answer | String | The option the user selected. The value should be either "optionOne" or "optionTwo" |