import falcon

api = application = falcon.API()

class HelloWorld:
    def on_get(self, req, resp):
        resp.body = 'Hello, world!'

api.add_route('/', HelloWorld())

import falcon

class ThingsResource:
    def on_get(self, req, resp):
        resp.media = {'message': 'Hello, Things!'}

api = falcon.API()
api.add_route('/things', ThingsResource())

import falcon

class ItemsResource:
    def on_get(self, req, resp):
        items = ['item1', 'item2', 'item3']
        resp.media = {'items': items}

api = falcon.API()
api.add_route('/items', ItemsResource())

import falcon
from concurrent.futures import ThreadPoolExecutor

executor = ThreadPoolExecutor(max_workers=2)

class ThreadResource:
    def on_get(self, req, resp):
        future = executor.submit(self.long_running_task)
        resp.media = {'status': 'Task started'}

    def long_running_task(self):
        # Long running task here
        pass

api = falcon.API()
api.add_route('/thread', ThreadResource())

import falcon

class Employee:
    def __init__(self, name, position):
        self.name = name
        self.position = position

class EmployeeResource:
    def on_get(self, req, resp):
        employee = Employee('John Doe', 'Developer')
        resp.media = {'employee': employee.__dict__}

api = falcon.API()
api.add_route('/employee', EmployeeResource())

import falcon

class AdvancedResource:
    def on_get(self, req, resp, name):
        resp.media = {'message': f'Hello, {name}!'}

api = falcon.API()
api.add_route('/hello/{name}', AdvancedResource())