readme.md

Example

Run wp-cli command

$ wp curl-rest --user=admin 

Output:

curl -H 'X-WP-NONCE: ooO0o00o00' --cookie \
  'wordpress_logged_in_wwWwwwWwwwWWwwwwwWwwwWWwwWWWwwwww=admin|xxxxxxxxxx|YYyyYyyyyYyYyYYYYYyyyYYyyyyYyyYYyyyyyyYYyyY|zZzzzzzZzZzzzzzZZzzzZzzzZzzZZzzzzzzZZzZzzzZZZzzZzZzzzZZzzzzzZzzz' \
  'http://local.wordpress.local/wp-json/wp/v2/settings'

Run curl command

$ curl -H 'X-WP-NONCE: ooO0o00o00' --cookie \
  'wordpress_logged_in_wwWwwwWwwwWWwwwwwWwwwWWwwWWWwwwww=admin|xxxxxxxxxx|YYyyYyyyyYyYyYYYYYyyyYYyyyyYyyYYyyyyyyYYyyY|zZzzzzzZzZzzzzzZZzzzZzzzZzzZZzzzzzzZZzZzzzZZZzzZzZzzzZZzzzzzZzzz' \
  'http://local.wordpress.local/wp-json/wp/v2/settings'

Output:
(prettified, I recommend the jq command line tool)

{
  "title": "wordpress.local",
  "description": "Just another WordPress site",
  "url": "http://local.wordpress.local",
  "email": "admin@example.com",
  "timezone": "",
  "date_format": "F j, Y",
  "time_format": "g:i a",
  "start_of_week": 1,
  "language": "",
  "use_smilies": true,
  "default_category": 1,
  "default_post_format": "0",
  "posts_per_page": 10,
  "default_ping_status": "open",
  "default_comment_status": "open"
}

curl-rest-cli.php

<?php

if ( !defined( 'WP_CLI' ) ) return;

/**
 */
class trepmal_cURL_REST extends WP_CLI_Command {

	/**
	 * Generate cURL command for REST API
	 *
	 * ## EXAMPLES
	 *
	 *     # Generare command for fetching all administrators
	 *     $ wp curl-rest --user=1 wp/v2/users?role=administrator
	 *
	 * @synopsis [<route>] --user=<user>
	 *
	 */
	function __invoke( $args, $assoc_args ) {

		$args = wp_parse_args( [
			0 => 'wp/v2/settings'
		], $args );

		list( $route ) = $args;

		$route = trim( $route, '/');

		if ( substr( $route, 0, 5 ) !== 'wp/v2' ) {
			$route = "wp/v2/$route";
		}

		if ( ! $user_id = get_current_user_id() ) {
			WP_CLI::error( 'Please pass --user' );
		}

		$expiration = time() + DAY_IN_SECONDS;
		$manager    = WP_Session_Tokens::get_instance( $user_id );
		$token      = $manager->create( $expiration );

		$logged_in_cookie = wp_generate_auth_cookie( $user_id, $expiration, 'logged_in', $token );
		$_COOKIE[ LOGGED_IN_COOKIE ] = $logged_in_cookie; // for nonce creation


		$url          = rest_url( $route );
		$nonce        = wp_create_nonce( 'wp_rest' );
		$cookie       = LOGGED_IN_COOKIE . "={$logged_in_cookie}";
		$nonce_header = "X-WP-NONCE: $nonce";

		$curl       = "curl -H '$nonce_header' --cookie '$cookie' '$url'";
		$split_curl = _split_str_by_whitespace( $curl, 100 );
		$curl       = implode( "\\\n  ", $split_curl );

		WP_CLI::line( $curl );

	}

}

WP_CLI::add_command( 'curl-rest', 'trepmal_cURL_REST' );