Joaquim Domingos António

If you wish to ‘Create comments’ using REST API, without exposing Administrator credentials to the Front-End application, you are at the right place. Since WordPress 4.7, REST API was natively included in WordPress.
In order to ‘Create a comment’ , the authentication for a user with ‘Administrator’ role is required. While this is a deliberately done for security reasons, such implementation makes it very hard for Front-End applications to implement a simple ‘Post Comment’ or ‘Reply Comment’ function.
This plugin fulfils such requirement by extending the existing WordPress REST API endpoints.
Requirements:
Minimum PHP version: 7.0 
Minimum WordPress version: 5.5
Installation:
Download the plugin form wordpress marketplace install it like any other WordPress plugin. 
After the installation activate the plugin through the ‘Plugins’ menu in WordPress
Endpoint:
When this plugin is installed one new endpoint is added to the wp/v2 namespace.
 Endpoint 
 HTTP Verb 
 Permalinks
 */wp-json/wp/v2/comments/create 
 POST 
 enabled
 */?rest_route=/wp/v2/comments/create 
 POST 
 disabled
Usage:
<ol>
<li>Create a Comment</li>
</ol>
To create a comment using REST API, send a <code>POST</code> request to:
<blockquote>
<code>/wp-json/wp/v2/comments/create</code> – if permalinks is enabled on your wordpress website.
</blockquote>
Or
<blockquote>
<code>/?rest_route=/wp/v2/comments/create</code> if permalinks is not enabled on your wordpress website.
</blockquote>
With a JSON body, as shown bellow:
<pre><code>`Json
</code></pre>
{ 
 “post”: “Post ID”, 
 “author_name”: “Comment Author’s name”, 
 “author_email”: “Comment Author’s email”, 
 “content”: “Comment content” 
} 
 `
The content may also be send as an object:
<pre><code>`Json
</code></pre>
{ 
 “post”: “Post ID”, 
 “author_name”: “Comment Author’s name”, 
 “author_email”: “Comment Author’s email”, 
 “content”: { 
 “raw”:”Comment content” 
 } 
} 
 `
Set header to:
<pre><code>`
</code></pre>
content-type: application/json 
 ` 
If successful, you should receive a response with the data of the created comment:
<pre><code>`Json
</code></pre>
{ 
 “id”: “[comment id]”, 
 “status”: “[comment status]”, 
 “message”:”[server response message]” 
} 
 `
In response header the status code should be:
<pre><code>`Http
</code></pre>
HTTP 201 Created 
 `
<ol>
<li>Reply a comment</li>
</ol>
To reply a comment you just need to add the field parent for the parent comment to the JSON body
<pre><code>`Json
</code></pre>
{ 
 “post”: “Post ID”, 
 “author_name”: “Comment Author’s name”, 
 “author_email”: “Comment Author’s email”, 
 “content”: “Comment content”, 
 “parent”:”Comment parent ID” 
} 
 `
<blockquote>
Note: Ensure the parent is a comment id that belongs to the post informed in the field post. The comment parent post id must match the post id otherwise the following error will be shown:
</blockquote>
<pre><code>`Json
</code></pre>
{ 
 “code”: “rest_post_mismatch_parent_post_id”, 
 “message”: “Post ID and Parent post ID does not match”, 
 “data”: { 
 “status”: 400 
 } 
} 
 `
<h3>Contact</h3>
If there is any thing to say about the plugin fill free to <a href="mailto:sopport@appsdabanda.com" rel="nofollow ugc">contact us</a>.

REST API Comment

REST API Comment adds in the 'Comment creation' function to the Wordpress REST API.

centangle

Ihtisham Zahoor

Sajjad Hussain

WP Custom REST API Generator plugin provides an interface in WordPress Admin panel, which provides control to the user to show/hide Author Meta, Featured Image, Custom Fields and Taxonomies of all available Post Types for WordPress Rest API.
<h3>Features</h3>
WP Custom REST API Generator comes with the following features;
<ul>
<li>Author Meta i:e. Author Name, Author Description, Author User Level, Author Avatar.</li>
<li>Featured Image with defined sized i:e. Small, Medium, Large, Full etc.</li>
<li>Custom Fields i:e. Fields defined by user for individual posts of different Post Types.</li>
<li>Taxonomies i:e. Default and Custom Taxonomies.</li>
</ul>
<h3>Automatic installation</h3>
Automatic installation is the easiest option as WordPress handles the file transfers itself and you don’t need to leave your web browser. To do an automatic install of this plugin, log in to your WordPress dashboard, navigate to the Plugins menu and click Add New.
In the search field type “WP Custom REST API Generator” and click Search Plugins. Once you’ve found this plugin, you can install it by simply clicking “Install Now”.
<h3>Manual installation</h3>
<ol>
<li>Download and unzip the WP Custom REST API Generator plugin</li>
<li>Upload the entire wp-custom-rest-api-generator/ directory to the /wp-content/plugins/ directory</li>
<li>Activate the WP Custom REST API Generator plugin through the Plugins menu in WordPress</li>
</ol>
Customize the WP Custom REST API Generator settings at the administration menu >> Settings >> WP Custom REST API Generator

WP Custom REST API Generator

WP Custom REST API Generator plugin enables the user to show/hide varied meta information of Posts in WordPress REST API.

REST API Comment vs WP Custom REST API Generator