Recipes API Plugin

Description

The Recipes API plugin provides tools to manage and expose a custom "Recipes" Custom Post Type (CPT) via a REST API. The plugin adds custom meta boxes to the "Recipes" CPT, allowing you to specify which sites the entries will be available on. It also creates a REST API endpoint that returns the entries filtered based on selected sites, categories, and tags. The endpoint is protected via WordPress application passwords to ensure secure access.

Features

• Adds a meta box to the "Recipes" CPT to select available sites.
• Creates an admin screen to manage the available sites.
• REST API endpoint to list "Recipes" CPT entries filtered based on selected sites, categories, and tags.
• Endpoint protection using WordPress application passwords.
• Supports filtering by multiple categories and tags with AND or OR relations.
• Supports pagination to control the number of results returned.

Requirements

• WordPress 5.6 or later
• PHP 7.4 or later

Installation

1. Clone or download this repository into your WordPress wp-content/plugins/ folder.
2. Activate the plugin through the "Plugins" menu in WordPress.

Usage

1. Managing Available Sites

• In the WordPress admin menu, go to API Receitas.
• Add, edit, or remove the available sites. These sites are used to select which sites the "Recipes" CPT entries will be available on.

2. Configuring the "Recipes" CPT

• When creating or editing a "Recipes" post, you will see a meta box where you can select the sites where the entry will be available.
• The sites available in the meta box are those configured in the "API Receitas" screen.

3. Consuming the REST API

The API endpoint is available at:

https://yoursite.com/api/v1/recipes

Parameters

• site: (optional) Filters the entries based on the selected site.
• categories: (optional) Filters entries by multiple categories. Accepts a comma-separated list of category IDs or slugs.
• tags: (optional) Filters entries by multiple tags. Accepts a comma-separated list of tag IDs or slugs.
• relation: (optional) Defines the relation between categories and tags, either AND or OR. The default is AND.
• page: (optional) The page number to return. Defaults to 1.
• limit: (optional) The number of items per page. Defaults to 10.
• post_type: (optional) Specify a custom post type to filter results. Defaults to the "Recipes" CPT.

Usage example:

https://yoursite.com/api/v1/recipes?site=sitea.com&categories=1,2&tags=breakfast,dinner&relation=OR&page=2&limit=5

This example will return page 2 of the results from sitea.com that are in either category 1 or 2 and have the tags breakfast or dinner, with 5 items per page.

4. Securing the Endpoint with Application Passwords

• To access the API, you must use basic authentication with a WordPress username and application password.

Example Request:

curl -X GET https://yoursite.com/api/v1/recipes?site=sitea.com \
-H "Authorization: Basic base64_encoded_string"

How to Generate an Application Password

• In the WordPress user profile, you will find the "Application Passwords" section.
• Create an application password and use it along with the username in the authentication.

5. Pagination Details

The API supports pagination using the page and limit parameters.

• page: Defines which page to return (defaults to 1).
• limit: Defines the number of items per page (defaults to 10).

The response includes the following pagination details:

• total: Total number of posts found.
• total_pages: Total number of pages available.
• current_page: The current page number.
• limit: The number of items returned per page.

Changelog

1.0.1

• Added support for filtering recipes by tags.
• Updated the API to allow filtering by a combination of categories and tags with AND or OR relations.

Author

• Weslley Alves - LinkedIn