Default API endpoints in Wordpress - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the default REST API base URL in WordPress.

Wordpress

const apiBase = wpApiSettings.[1];

Drag options to blanks, or click blank then click option'

Aendpoint

Broot

Curl

DbaseUrl

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'endpoint' or 'url' instead of 'root'.

Trying to access a property that does not exist.

The default REST API base URL is stored in wpApiSettings.root.

2fill in blank

medium

Complete the code to fetch posts from the default WordPress REST API endpoint.

Wordpress

fetch(wpApiSettings.root + 'wp/v2/[1]')

Drag options to blanks, or click blank then click option'

Ausers

Bpages

Cposts

Dcomments

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'page' instead of 'pages'.

Using 'users' or 'comments' which are different endpoints.

The default endpoint to get posts is wp/v2/posts.

3fill in blank

hard

Fix the error in the code to get a single post by ID from the WordPress REST API.

Wordpress

fetch(wpApiSettings.root + 'wp/v2/posts/[1]')

Drag options to blanks, or click blank then click option'

ApostId

Bid

C:id

D123

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name instead of an actual ID.

Using ':id' which is not valid in this context.

You must replace the placeholder with an actual post ID number, like 123.

4fill in blank

hard

Fill both blanks to create a URL to fetch comments for a specific post ID.

Wordpress

const url = wpApiSettings.root + 'wp/v2/[1]/[2]/comments';

Drag options to blanks, or click blank then click option'

Aposts

B123

Cpages

D456

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'pages' instead of 'posts' for comments.

Using an invalid post ID.

To get comments for a post, use 'posts' and the post ID like '123'.

5fill in blank

hard

Fill all three blanks to build a URL to update a post with ID 789 using the REST API.

Wordpress

fetch(wpApiSettings.root + 'wp/v2/[1]/[2]', { method: '[3]' })

Drag options to blanks, or click blank then click option'

Aposts

B789

CPUT

DGET

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'GET' method instead of 'PUT' for updating.

Using wrong content type or post ID.

To update a post, use 'posts' as the type, the post ID '789', and the HTTP method 'PUT'.

Practice

1. What is the main purpose of WordPress default API endpoints?

easy

A. To allow easy access to WordPress data via URLs

B. To create custom themes automatically

C. To manage user roles and permissions

D. To optimize website SEO settings

Solution

1. Step 1: Understand what API endpoints do

   API endpoints provide a way to get or send data through URLs.

2. Step 2: Identify the role of default WordPress endpoints

   They let you access WordPress content like posts or users easily without extra coding.

3. Final Answer:

   To allow easy access to WordPress data via URLs -> Option A

4. Quick Check:

   Default API endpoints = easy data access [OK]

Hint: Default API endpoints = easy data access URLs [OK]

Common Mistakes:

• Thinking endpoints create themes
• Confusing endpoints with user management
• Assuming endpoints handle SEO

2. Which of the following is the correct default REST API endpoint URL to get all posts in WordPress?

easy

A. /wp-content/posts

B. /wp-admin/posts

C. /api/v1/posts/all

D. /wp-json/wp/v2/posts

Solution

1. Step 1: Recall the WordPress REST API base URL

   The base URL for WordPress REST API is /wp-json/wp/v2/.

2. Step 2: Identify the correct endpoint for posts

   The posts endpoint is posts, so full URL is /wp-json/wp/v2/posts.

3. Final Answer:

   /wp-json/wp/v2/posts -> Option D

4. Quick Check:

   Posts endpoint = /wp-json/wp/v2/posts [OK]

Hint: WordPress REST API base = /wp-json/wp/v2/ [OK]

Common Mistakes:

• Using admin URLs instead of API URLs
• Confusing API version or path
• Using incorrect folder paths

3. What will be the result of accessing the URL /wp-json/wp/v2/posts/10 in a WordPress site?

medium

A. Returns the post with ID 10 in JSON format

B. Returns a list of all posts except post 10

C. Returns an error because ID is not allowed

D. Redirects to the homepage

Solution

1. Step 1: Understand the endpoint pattern

   The URL /wp-json/wp/v2/posts/{id} fetches a single post by its ID.

2. Step 2: Interpret the given URL

   Here, ID is 10, so it returns the post with ID 10 in JSON format.

3. Final Answer:

   Returns the post with ID 10 in JSON format -> Option A

4. Quick Check:

   Single post URL returns that post [OK]

Hint: URL with /posts/{id} returns that post [OK]

Common Mistakes:

• Thinking it returns all posts except one
• Assuming ID is invalid in URL
• Expecting a redirect instead of JSON

4. You try to fetch users data using /wp-json/wp/v2/users but get a 401 Unauthorized error. What is the likely cause?

medium

A. The URL is missing the API version

B. The users endpoint does not exist in WordPress

C. You need proper authentication to access users endpoint

D. You must use GET method instead of POST

Solution

1. Step 1: Check endpoint access rules

   Users endpoint requires authentication because user data is sensitive.

2. Step 2: Analyze the error 401 Unauthorized

   This error means the request lacks valid credentials to access the resource.

3. Final Answer:

   You need proper authentication to access users endpoint -> Option C

4. Quick Check:

   401 error = authentication needed [OK]

Hint: 401 error means login/auth needed [OK]

Common Mistakes:

• Thinking users endpoint is missing
• Assuming URL version is wrong
• Confusing HTTP methods

5. You want to get all published posts with the category ID 5 using the default WordPress REST API. Which URL should you use?

hard

A. /wp-json/wp/v2/posts?category=5&status=published

B. /wp-json/wp/v2/posts?categories=5&status=publish

C. /wp-json/wp/v2/posts?cat=5&post_status=publish

D. /wp-json/wp/v2/posts?categories=5&post_status=published

Solution

1. Step 1: Identify correct query parameters for category and status

   WordPress REST API uses categories for category IDs and status for post status.

2. Step 2: Match parameters with correct values

   Category ID is 5, and published posts use status=publish.

3. Final Answer:

   /wp-json/wp/v2/posts?categories=5&status=publish -> Option B

4. Quick Check:

   categories=5 and status=publish are correct params [OK]

Hint: Use categories=ID and status=publish for filtering posts [OK]

Common Mistakes:

• Using wrong parameter names like category or cat
• Using status=published instead of publish
• Mixing post_status with status