This is the base WP REST API Controller class

WP REST API Controller Class.php

<?php class Sports_Bench_Team_REST_Controller extends WP_REST_Controller {

	/**
	 * Register the routes for the objects of the controller.
	 */
	public function register_routes() {
		$namespace = 'sportsbench';
		$base = 'teams';
		register_rest_route( $namespace, '/' . $base, array(
			array(
				'methods'         => WP_REST_Server::READABLE,
				'callback'        => array( $this, 'get_items' ),
				'permission_callback' => array( $this, 'get_items_permissions_check' ),
				'args'            => array( $this->get_collection_params() ),
			),
			array(
				'methods'         => WP_REST_Server::CREATABLE,
				'callback'        => array( $this, 'create_item' ),
				'permission_callback' => array( $this, 'create_item_permissions_check' ),
				'args'            => $this->get_endpoint_args_for_item_schema( true ),
			),
		) );
		register_rest_route( $namespace, '/' . $base . '/(?P<id>[\d]+)', array(
			array(
				'methods'         => WP_REST_Server::READABLE,
				'callback'        => array( $this, 'get_item' ),
				'permission_callback' => array( $this, 'get_item_permissions_check' ),
				'args'            => array(
					'context'          => array(
						'default'      => 'view',
						'required'     => true,
					),
					'params' => array(
						'required'     => false,
						'team_id' => array(
							'description'        => 'The id(s) for the team(s) in the search.',
							'type'               => 'integer',
							'default'            => 1,
							'sanitize_callback'  => 'absint',
						),
					),
					$this->get_collection_params()
				),
			),
			array(
				'methods'         => WP_REST_Server::EDITABLE,
				'callback'        => array( $this, 'update_item' ),
				'permission_callback' => array( $this, 'update_item_permissions_check' ),
				'args'            => $this->get_endpoint_args_for_item_schema( false ),
			),
			array(
				'methods'  => WP_REST_Server::DELETABLE,
				'callback' => array( $this, 'delete_item' ),
				'permission_callback' => array( $this, 'delete_item_permissions_check' ),
				'args'     => array(
					'force'    => array(
						'default'      => false,
					),
				),
			),
		) );
		register_rest_route( $namespace, '/' . $base . '/schema', array(
			'methods'         => WP_REST_Server::READABLE,
			'callback'        => array( $this, 'get_public_item_schema' ),
		) );
		//print_r( $this->get_collection_params() );
	}

	/**
	 * Get a collection of items
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|WP_REST_Response
	 */
	public function get_items( $request ) {
		
	}

	/**
	 * Get one item from the collection
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|WP_REST_Response
	 */
	public function get_item( $request ) {
		
	}

	/**
	 * Create one item from the collection
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|WP_REST_Response
	 */
	public function create_item( $request ) {

	}

	/**
	 * Update one item from the collection
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|WP_REST_Response
	 */
	public function update_item( $request ) {

	}

	/**
	 * Delete one item from the collection
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|WP_REST_Request
	 */
	public function delete_item( $request ) {
		
	}

	/**
	 * Check if a given request has access to get items
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|bool
	 */
	public function get_items_permissions_check( $request ) {
		return true;
	}

	/**
	 * Check if a given request has access to get a specific item
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|bool
	 */
	public function get_item_permissions_check( $request ) {
		return $this->get_items_permissions_check( $request );
	}

	/**
	 * Check if a given request has access to create items
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|bool
	 */
	public function create_item_permissions_check( $request ) {
		return current_user_can( 'edit_something' );
	}

	/**
	 * Check if a given request has access to update a specific item
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|bool
	 */
	public function update_item_permissions_check( $request ) {
		return $this->create_item_permissions_check( $request );
	}

	/**
	 * Check if a given request has access to delete a specific item
	 *
	 * @param WP_REST_Request $request Full data about the request.
	 * @return WP_Error|bool
	 */
	public function delete_item_permissions_check( $request ) {
		return $this->create_item_permissions_check( $request );
	}

	/**
	 * Prepare the item for create or update operation
	 *
	 * @param WP_REST_Request $request Request object
	 * @return WP_Error|object $prepared_item
	 */
	protected function prepare_item_for_database( $request ) {

	}

	/**
	 * Prepare the item for the REST response
	 *
	 * @param mixed $item WordPress representation of the item.
	 * @param WP_REST_Request $request Request object.
	 * @return mixed
	 */
	public function prepare_item_for_response( $item, $request ) {

	}

	/**
	 * Get the query params for collections
	 *
	 * @return array
	 */
	public function get_collection_params() {
		
	}

	/**
	 * Get the Entry schema, conforming to JSON Schema.
	 *
	 * @since  2.0-beta-1
	 * @access public
	 *
	 * @return array
	 */
	public function get_item_schema() {
		
	}

} ?>