A WordPress plugin to create JSON files from posts.

The settings page for this plugin is at Tools -> WP Parser JSON. Here you can create JSON files for any post type. Or use the wp parser-json generate WP-CLI command to create JSON files.

Example

wp parser-json generate --post_type=post,page --posts_per_page=100

The JSON files are saved in this plugin's directory in the folder json-files. If you use the --posts_per_page option multiple (numbered) files are created for a post type instead of a single file (per post type).

Originally this plugin only created JSON files for the post types of the the WP Parser plugin. For backward compatibility if you do not provide a post type and the WP Parser post types exist it will create the JSON files for the wp-parser-function,wp-parser-hook andwp-parser-class post types. It will also create a version.json file with the WP version that was parsed.

This is the JSON file (movies.json) structure for a movies post type.

{
  "post_type": "movies",
  "url": "https:\/\/my-website.com\/movie",
  "found_posts": 100,
  "max_pages": 1,
  "posts_per_page": -1,
  "content":[
      {"title": "Die Hard", "slug": "die-hard"},
      {"title": "Mad Max Fury Road", "slug": "mad-max-fury-road"},

      {"title": "etc...", "slug":"etc..."}
    ]
}

As you can see, by default only the post title and slug are included. To add more post fields use the wp_parser_json_content_item filter.

Example of adding the post ID field.

add_filter( 'wp_parser_json_content_item', 'json_parser_add_post_id', 10, 2 );

function json_parser_add_post_id( $item, $post ) {
	$item['post_id'] = $post->ID;

	return $item;
}

This will result with the post ID added in the JSON files.

{
  "post_type": "movies",
  "url": "https:\/\/my-website.com\/movie",
  "found_posts": 2,
  "max_pages": 1,
  "posts_per_page": -1,
  "content":[
      {"title": "Die Hard", "slug": "die-hard", "post_id": 1288},
      {"title": "Mad Max Fury Road", "slug": "mad-max-fury-road", "post_id": 2768}
    ]
}

The url and posts_per_page values can also be filtered. See Filters below.

Use the --posts_per_page option if you need to add a lot of post fields with the wp_parser_json_content_item filter above. This stops the JSON files from getting to big. if --posts_per_page is used everything you add with the filter will be put in the paginated files.

Example of a movies.json file created with the --posts_per_page=2 option.

{
  "post_type": "movies",
  "url": "https:\/\/my-website.com\/movie",
  "found_posts": 3,
  "max_pages": 2,
  "posts_per_page": 2,
  "content":[
      {"title": "Die Hard", "slug": "die-hard", "page": 1},
      {"title": "Mad Max Fury Road", "slug": "mad-max-fury-road", "page": 1}
      {"title": "The Terminator", "slug": "the-terminator", "page": 2}
    ]
}

In this example you see that you can access the The Terminator post fields in the movies-2.json file.

• wp_parser_json_content_item
• wp_parser_json_base_url
• wp_parser_json_posts_per_page
• wp_parser_json_parse_post_types
• wp_parser_json_query_args
• wp_parser_json_file_limit
• wp_parser_json_posts_page_index
• wp_parser_json_index_page_index